Tóm tắt công thức Hóa học 8

<ol style="text-align: left;"><li><a href="https://khanhnhusaigon.blogspot.com/2024/10/cong-thuc-tinh-so-mol-theo-khai-niem.html" target="_blank"><span style="font-size: medium;">Tính số mol theo khái niệm</span></a></li><li><a href="https://khanhnhusaigon.blogspot.com/2024/10/cong-thuc-tinh-so-mol.html" target="_blank"><span style="font-size: medium;">Tính số mol</span></a></li><li><a href="https://khanhnhusaigon.blogspot.com/2024/10/cong-thuc-tinh-khoi-luong-mol.html" target="_blank"><span style="font-size: medium;">Tính khối lượng mol  </span></a></li><li><a href="https://khanhnhusaigon.blogspot.com/2024/10/cong-thuc-tich-mol-cua-chat-khi.html" target="_blank"><span style="font-size: medium;">Thể tích mol của chất khí </span></a></li><li><a href="https://khanhnhusaigon.blogspot.com/2024/10/cong-thuc-tinh-ti-khoi-cua-khi-voi-khi-b.html" target="_blank"><span style="font-size: medium;">Tính tỉ khối của khí A với khí B  </span></a></li><li><a href="https://khanhnhusaigon.blogspot.com/2024/10/cong-thuc-tinh-ti-khoi-cua-khi-oi-voi.html" target="_blank"><span style="font-size: medium;">Tính tỉ khối của khí A đối với không khí  </span></a></li><li><a href="https://khanhnhusaigon.blogspot.com/2024/10/cong-thuc-tinh-o-tan-cua-mot-chat-trong.html" target="_blank"><span style="font-size: medium;">Tính độ tan của một chất trong nước  </span></a></li><li><a href="https://khanhnhusaigon.blogspot.com/2024/10/cong-thuc-tinh-nong-o-phan-tram.html" target="_blank"><span style="font-size: medium;">Tính nồng độ phần trăm  </span></a></li><li><a href="https://khanhnhusaigon.blogspot.com/2024/10/cong-thuc-tinh-nong-o-mol.html" target="_blank"><span style="font-size: medium;">Tính nồng độ mol </span></a></li><li><a href="https://khanhnhusaigon.blogspot.com/2024/10/cong-thuc-tinh-nong-o-phan-tram-theo-o.html" target="_blank"><span style="font-size: medium;">Tính nồng độ phần trăm theo độ tan  </span></a></li><li><a href="https://khanhnhusaigon.blogspot.com/2024/10/cong-thuc-bao-toan-khoi-luong.html" target="_blank"><span style="font-size: medium;">Bảo toàn khối lượng  </span></a></li><li><a href="https://khanhnhusaigon.blogspot.com/2024/10/cong-thuc-tinh-hieu-suat-phan-ung.html" target="_blank"><span style="font-size: medium;">Tính hiệu suất phản ứng  </span></a></li></ol>

Tóm tắt công thức Hóa học 8

Tính số mol theo khái niệm Tính số mol Tính khối lượng mol   Thể tích mol của chất khí  Tính tỉ khối của khí A với khí B   Tính tỉ khối của ...

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Công thức tính số mol theo khái niệm

<p> <span style="font-family: "Open Sans", Arial, sans-serif; font-size: 18px; font-weight: 700; text-align: justify;">1. Công thức tính tính số mol theo khái niệm</span></p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">- Công thức tính số mol theo khái niệm:</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;"><span class="mjx-chtml MathJax_CHTML" data-mathml="<math xmlns="http://www.w3.org/1998/Math/MathML"><mstyle displaystyle="false"><mi mathvariant="normal">n</mi><mo>&#x2062;</mo><mi mathvariant="normal">&#xA0;</mi><mo>=</mo><mo>&#x2062;</mo><mfrac><mi mathvariant="normal">N</mi><msub><mi mathvariant="normal">N</mi><mi mathvariant="normal">A</mi></msub></mfrac><mo>.</mo></mstyle></math>" id="MathJax-Element-1-Frame" role="presentation" style="border: 0px; box-sizing: border-box; direction: ltr; display: inline-block; float: none; font-size: 21.78px; line-height: 0; margin: 0px; max-height: none; max-width: none; min-height: 0px; min-width: 0px; overflow-wrap: normal; padding: 1px 0px; position: relative; text-align: left; white-space: nowrap; word-spacing: normal;" tabindex="0"><span aria-hidden="true" class="mjx-math" id="MJXc-Node-1" style="border-collapse: separate; border-spacing: 0px; box-sizing: border-box; display: inline-block;"><span class="mjx-mrow" id="MJXc-Node-2" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-mstyle" id="MJXc-Node-3" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-mrow" id="MJXc-Node-4" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-mi" id="MJXc-Node-5" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.14em; white-space: pre;">n</span></span><span class="mjx-mo" id="MJXc-Node-6" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char" style="box-sizing: content-box !important; display: block; white-space: pre;"></span></span><span class="mjx-mi" id="MJXc-Node-7" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.273em; padding-bottom: 0.324em; white-space: pre;"> </span></span><span class="mjx-mo MJXc-space3" id="MJXc-Node-8" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.278em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.094em; white-space: pre;">=</span></span><span class="mjx-mo MJXc-space3" id="MJXc-Node-9" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.278em;"><span class="mjx-char" style="box-sizing: content-box !important; display: block; white-space: pre;"></span></span><span class="mjx-mfrac" id="MJXc-Node-10" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-box MJXc-stacked" style="box-sizing: content-box !important; display: inline-block; height: 0px; padding: 0px 0.12em; position: relative; width: 1.072em;"><span class="mjx-numerator" style="box-sizing: content-box !important; display: block; font-size: 15.3985px; position: absolute; text-align: center; top: -1.293em; width: 1.516em;"><span class="mjx-mi" id="MJXc-Node-11" style="box-sizing: content-box !important; display: inline-block; text-align: left;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.416em; white-space: pre;">N</span></span></span><span class="mjx-denominator" style="bottom: -0.749em; box-sizing: content-box !important; display: block; font-size: 15.3985px; position: absolute; text-align: center; width: 1.516em;"><span class="mjx-msub" id="MJXc-Node-12" style="box-sizing: content-box !important; display: inline-block; text-align: left;"><span class="mjx-base" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-mi" id="MJXc-Node-13" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.416em; white-space: pre;">N</span></span></span><span class="mjx-sub" style="box-sizing: content-box !important; display: inline-block; font-size: 10.8867px; padding-right: 0.071em; vertical-align: -0.241em;"><span class="mjx-mi" id="MJXc-Node-14" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.416em; white-space: pre;">A</span></span></span></span></span><span class="mjx-line" style="border-bottom: 1.3px solid; box-sizing: content-box !important; display: block; height: 0px; position: absolute; top: -0.28em; width: 1.072em;"></span></span><span class="mjx-vsize" style="box-sizing: content-box !important; display: inline-block; height: 1.444em; vertical-align: -0.53em; width: 0px;"></span></span><span class="mjx-mo" id="MJXc-Node-15" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.181em; padding-bottom: 0.324em; white-space: pre;">.</span></span></span></span></span></span><span class="MJX_Assistive_MathML" role="presentation" style="border: 0px !important; box-sizing: border-box; clip: rect(1px, 1px, 1px, 1px); display: block !important; height: 1px !important; left: 0px; overflow: hidden !important; padding: 1px 0px 0px !important; position: absolute !important; top: 0px; user-select: none; width: 1px !important;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mstyle displaystyle="false"><mi mathvariant="normal">n</mi><mo>⁢</mo><mi mathvariant="normal"> </mi><mo>=</mo><mo>⁢</mo><mfrac><mi mathvariant="normal">N</mi><msub><mi mathvariant="normal">N</mi><mi mathvariant="normal">A</mi></msub></mfrac><mo>.</mo></mstyle></math></span></span></p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">Trong đó:</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">+ n là số mol nguyên tử, phân tử, ion (mol).</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">+ N là số nguyên tử, phân tử.</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">+ N<span style="bottom: -0.25em; box-sizing: border-box; font-size: 13.5px; line-height: 0; position: relative; vertical-align: baseline;">A </span>là số Avogadro (N<span style="bottom: -0.25em; box-sizing: border-box; font-size: 13.5px; line-height: 0; position: relative; vertical-align: baseline;">A</span> = 6,022.10<span style="box-sizing: border-box; font-size: 13.5px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">23</span>).</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;"><span style="box-sizing: border-box; font-weight: 700;">2. Ví dụ minh họa</span></p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;"><span style="box-sizing: border-box; font-weight: 700;">Ví dụ 1:</span> Tính số phân tử oxygen có trong 0,35 mol phân tử oxygen.</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: center;"><span style="box-sizing: border-box; font-weight: 700;">Hướng dẫn giải</span></p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">Từ công thức tính số mol theo khái niệm: <span class="mjx-chtml MathJax_CHTML" data-mathml="<math xmlns="http://www.w3.org/1998/Math/MathML"><mstyle displaystyle="false"><mi mathvariant="normal">n</mi><mo>&#x2062;</mo><mi mathvariant="normal">&#xA0;</mi><mo>=</mo><mo>&#x2062;</mo><mfrac><mi mathvariant="normal">N</mi><msub><mi mathvariant="normal">N</mi><mi mathvariant="normal">A</mi></msub></mfrac></mstyle></math>" id="MathJax-Element-2-Frame" role="presentation" style="border: 0px; box-sizing: border-box; direction: ltr; display: inline-block; float: none; font-size: 21.78px; line-height: 0; margin: 0px; max-height: none; max-width: none; min-height: 0px; min-width: 0px; overflow-wrap: normal; padding: 1px 0px; position: relative; text-align: left; white-space: nowrap; word-spacing: normal;" tabindex="0"><span aria-hidden="true" class="mjx-math" id="MJXc-Node-16" style="border-collapse: separate; border-spacing: 0px; box-sizing: border-box; display: inline-block;"><span class="mjx-mrow" id="MJXc-Node-17" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-mstyle" id="MJXc-Node-18" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-mrow" id="MJXc-Node-19" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-mi" id="MJXc-Node-20" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.14em; white-space: pre;">n</span></span><span class="mjx-mo" id="MJXc-Node-21" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char" style="box-sizing: content-box !important; display: block; white-space: pre;"></span></span><span class="mjx-mi" id="MJXc-Node-22" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.273em; padding-bottom: 0.324em; white-space: pre;"> </span></span><span class="mjx-mo MJXc-space3" id="MJXc-Node-23" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.278em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.094em; white-space: pre;">=</span></span><span class="mjx-mo MJXc-space3" id="MJXc-Node-24" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.278em;"><span class="mjx-char" style="box-sizing: content-box !important; display: block; white-space: pre;"></span></span><span class="mjx-mfrac" id="MJXc-Node-25" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-box MJXc-stacked" style="box-sizing: content-box !important; display: inline-block; height: 0px; padding: 0px 0.12em; position: relative; width: 1.072em;"><span class="mjx-numerator" style="box-sizing: content-box !important; display: block; font-size: 15.3985px; position: absolute; text-align: center; top: -1.293em; width: 1.516em;"><span class="mjx-mi" id="MJXc-Node-26" style="box-sizing: content-box !important; display: inline-block; text-align: left;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.416em; white-space: pre;">N</span></span></span><span class="mjx-denominator" style="bottom: -0.749em; box-sizing: content-box !important; display: block; font-size: 15.3985px; position: absolute; text-align: center; width: 1.516em;"><span class="mjx-msub" id="MJXc-Node-27" style="box-sizing: content-box !important; display: inline-block; text-align: left;"><span class="mjx-base" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-mi" id="MJXc-Node-28" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.416em; white-space: pre;">N</span></span></span><span class="mjx-sub" style="box-sizing: content-box !important; display: inline-block; font-size: 10.8867px; padding-right: 0.071em; vertical-align: -0.241em;"><span class="mjx-mi" id="MJXc-Node-29" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.416em; white-space: pre;">A</span></span></span></span></span><span class="mjx-line" style="border-bottom: 1.3px solid; box-sizing: content-box !important; display: block; height: 0px; position: absolute; top: -0.28em; width: 1.072em;"></span></span><span class="mjx-vsize" style="box-sizing: content-box !important; display: inline-block; height: 1.444em; vertical-align: -0.53em; width: 0px;"></span></span></span></span></span></span><span class="MJX_Assistive_MathML" role="presentation" style="border: 0px !important; box-sizing: border-box; clip: rect(1px, 1px, 1px, 1px); display: block !important; height: 1px !important; left: 0px; overflow: hidden !important; padding: 1px 0px 0px !important; position: absolute !important; top: 0px; user-select: none; width: 1px !important;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mstyle displaystyle="false"><mi mathvariant="normal">n</mi><mo>⁢</mo><mi mathvariant="normal"> </mi><mo>=</mo><mo>⁢</mo><mfrac><mi mathvariant="normal">N</mi><msub><mi mathvariant="normal">N</mi><mi mathvariant="normal">A</mi></msub></mfrac></mstyle></math></span></span></p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">⟹ N = n.N<span style="bottom: -0.25em; box-sizing: border-box; font-size: 13.5px; line-height: 0; position: relative; vertical-align: baseline;">A </span>= 0,35.6,022.10<span style="box-sizing: border-box; font-size: 13.5px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">23 </span>= 2,11.10<span style="box-sizing: border-box; font-size: 13.5px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">23 </span>(phân tử).</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">Vậy số phân tử oxygen có trong 0,35 mol phân tử là 2,1.10<span style="box-sizing: border-box; font-size: 13.5px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">23</span> phân tử.</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;"><span style="box-sizing: border-box; font-weight: 700;">Ví dụ 2:</span> Tính số mol nguyên tử calcium có trong 3,011.10<span style="box-sizing: border-box; font-size: 13.5px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">23</span> nguyên tử calcium.</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: center;"><span style="box-sizing: border-box; font-weight: 700;">Hướng dẫn giải</span></p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">Từ công thức tính số mol theo khái niệm:</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;"><span class="mjx-chtml MathJax_CHTML" data-mathml="<math xmlns="http://www.w3.org/1998/Math/MathML"><mstyle displaystyle="false"><mi mathvariant="normal">n</mi><mo>&#x2062;</mo><mi mathvariant="normal">&#xA0;</mi><mo>=</mo><mi mathvariant="normal">&#xA0;</mi><mo>&#x2062;</mo><mfrac><mi mathvariant="normal">N</mi><msub><mi mathvariant="normal">N</mi><mi mathvariant="normal">A</mi></msub></mfrac><mo>=</mo><mfrac><mrow><mn>3</mn><mo>,</mo><msup><mn>011.10</mn><mn>23</mn></msup></mrow><mrow><mn>6</mn><mo>,</mo><msup><mn>022.10</mn><mn>23</mn></msup></mrow></mfrac><mo>&#x2062;</mo><mi mathvariant="normal">&#xA0;</mi><mo>=</mo><mi mathvariant="normal">&#xA0;</mi><mo>&#x2062;</mo><mn>0</mn><mo>,</mo><mn>5</mn><mo>&#x2062;</mo><mrow><mo>(</mo><mi>mol</mi><mo>)</mo></mrow></mstyle></math>" id="MathJax-Element-3-Frame" role="presentation" style="border: 0px; box-sizing: border-box; direction: ltr; display: inline-block; float: none; font-size: 21.78px; line-height: 0; margin: 0px; max-height: none; max-width: none; min-height: 0px; min-width: 0px; overflow-wrap: normal; padding: 1px 0px; position: relative; text-align: left; white-space: nowrap; word-spacing: normal;" tabindex="0"><span aria-hidden="true" class="mjx-math" id="MJXc-Node-30" style="border-collapse: separate; border-spacing: 0px; box-sizing: border-box; display: inline-block;"><span class="mjx-mrow" id="MJXc-Node-31" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-mstyle" id="MJXc-Node-32" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-mrow" id="MJXc-Node-33" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-mi" id="MJXc-Node-34" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.14em; white-space: pre;">n</span></span><span class="mjx-mo" id="MJXc-Node-35" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char" style="box-sizing: content-box !important; display: block; white-space: pre;"></span></span><span class="mjx-mi" id="MJXc-Node-36" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.273em; padding-bottom: 0.324em; white-space: pre;"> </span></span><span class="mjx-mo MJXc-space3" id="MJXc-Node-37" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.278em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.094em; white-space: pre;">=</span></span><span class="mjx-mi MJXc-space3" id="MJXc-Node-38" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.278em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.273em; padding-bottom: 0.324em; white-space: pre;"> </span></span><span class="mjx-mo" id="MJXc-Node-39" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char" style="box-sizing: content-box !important; display: block; white-space: pre;"></span></span><span class="mjx-mfrac" id="MJXc-Node-40" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-box MJXc-stacked" style="box-sizing: content-box !important; display: inline-block; height: 0px; padding: 0px 0.12em; position: relative; width: 1.072em;"><span class="mjx-numerator" style="box-sizing: content-box !important; display: block; font-size: 15.3985px; position: absolute; text-align: center; top: -1.293em; width: 1.516em;"><span class="mjx-mi" id="MJXc-Node-41" style="box-sizing: content-box !important; display: inline-block; text-align: left;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.416em; white-space: pre;">N</span></span></span><span class="mjx-denominator" style="bottom: -0.749em; box-sizing: content-box !important; display: block; font-size: 15.3985px; position: absolute; text-align: center; width: 1.516em;"><span class="mjx-msub" id="MJXc-Node-42" style="box-sizing: content-box !important; display: inline-block; text-align: left;"><span class="mjx-base" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-mi" id="MJXc-Node-43" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.416em; white-space: pre;">N</span></span></span><span class="mjx-sub" style="box-sizing: content-box !important; display: inline-block; font-size: 10.8867px; padding-right: 0.071em; vertical-align: -0.241em;"><span class="mjx-mi" id="MJXc-Node-44" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.416em; white-space: pre;">A</span></span></span></span></span><span class="mjx-line" style="border-bottom: 1.3px solid; box-sizing: content-box !important; display: block; height: 0px; position: absolute; top: -0.28em; width: 1.072em;"></span></span><span class="mjx-vsize" style="box-sizing: content-box !important; display: inline-block; height: 1.444em; vertical-align: -0.53em; width: 0px;"></span></span><span class="mjx-mo MJXc-space3" id="MJXc-Node-45" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.278em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.094em; white-space: pre;">=</span></span><span class="mjx-mfrac MJXc-space3" id="MJXc-Node-46" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.278em;"><span class="mjx-box MJXc-stacked" style="box-sizing: content-box !important; display: inline-block; height: 0px; padding: 0px 0.12em; position: relative; width: 3.181em;"><span class="mjx-numerator" style="box-sizing: content-box !important; display: block; font-size: 15.3985px; position: absolute; text-align: center; top: -1.686em; width: 4.498em;"><span class="mjx-mrow" id="MJXc-Node-47" style="box-sizing: content-box !important; display: inline-block; text-align: left;"><span class="mjx-mn" id="MJXc-Node-48" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.37em; white-space: pre;">3</span></span><span class="mjx-mo" id="MJXc-Node-49" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.181em; padding-bottom: 0.553em; white-space: pre;">,</span></span><span class="mjx-msup" id="MJXc-Node-50" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-base" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-mn" id="MJXc-Node-51" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.37em; white-space: pre;">011.10</span></span></span><span class="mjx-sup" style="box-sizing: content-box !important; display: inline-block; font-size: 10.8867px; padding-left: 0px; padding-right: 0.071em; vertical-align: 0.591em;"><span class="mjx-mn" id="MJXc-Node-52" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.37em; white-space: pre;">23</span></span></span></span></span></span><span class="mjx-denominator" style="bottom: -0.979em; box-sizing: content-box !important; display: block; font-size: 15.3985px; position: absolute; text-align: center; width: 4.498em;"><span class="mjx-mrow" id="MJXc-Node-53" style="box-sizing: content-box !important; display: inline-block; text-align: left;"><span class="mjx-mn" id="MJXc-Node-54" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.37em; white-space: pre;">6</span></span><span class="mjx-mo" id="MJXc-Node-55" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.181em; padding-bottom: 0.553em; white-space: pre;">,</span></span><span class="mjx-msup" id="MJXc-Node-56" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-base" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-mn" id="MJXc-Node-57" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.37em; white-space: pre;">022.10</span></span></span><span class="mjx-sup" style="box-sizing: content-box !important; display: inline-block; font-size: 10.8867px; padding-left: 0px; padding-right: 0.071em; vertical-align: 0.591em;"><span class="mjx-mn" id="MJXc-Node-58" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.37em; white-space: pre;">23</span></span></span></span></span></span><span class="mjx-line" style="border-bottom: 1.3px solid; box-sizing: content-box !important; display: block; height: 0px; position: absolute; top: -0.28em; width: 3.181em;"></span></span><span class="mjx-vsize" style="box-sizing: content-box !important; display: inline-block; height: 1.884em; vertical-align: -0.692em; width: 0px;"></span></span><span class="mjx-mo" id="MJXc-Node-59" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char" style="box-sizing: content-box !important; display: block; white-space: pre;"></span></span><span class="mjx-mi" id="MJXc-Node-60" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.273em; padding-bottom: 0.324em; white-space: pre;"> </span></span><span class="mjx-mo MJXc-space3" id="MJXc-Node-61" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.278em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.094em; white-space: pre;">=</span></span><span class="mjx-mi MJXc-space3" id="MJXc-Node-62" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.278em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.273em; padding-bottom: 0.324em; white-space: pre;"> </span></span><span class="mjx-mo" id="MJXc-Node-63" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char" style="box-sizing: content-box !important; display: block; white-space: pre;"></span></span><span class="mjx-mn" id="MJXc-Node-64" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.37em; white-space: pre;">0</span></span><span class="mjx-mo" id="MJXc-Node-65" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.181em; padding-bottom: 0.553em; white-space: pre;">,</span></span><span class="mjx-mn MJXc-space1" id="MJXc-Node-66" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.167em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.37em; white-space: pre;">5</span></span><span class="mjx-mo" id="MJXc-Node-67" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char" style="box-sizing: content-box !important; display: block; white-space: pre;"></span></span><span class="mjx-mrow MJXc-space1" id="MJXc-Node-68" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.167em;"><span class="mjx-mo" id="MJXc-Node-69" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.599em; padding-top: 0.461em; white-space: pre;">(</span></span><span class="mjx-mi" id="MJXc-Node-70" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.416em; white-space: pre;">mol</span></span><span class="mjx-mo" id="MJXc-Node-71" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.599em; padding-top: 0.461em; white-space: pre;">)</span></span></span></span></span></span></span><span class="MJX_Assistive_MathML" role="presentation" style="border: 0px !important; box-sizing: border-box; clip: rect(1px, 1px, 1px, 1px); display: block !important; height: 1px !important; left: 0px; overflow: hidden !important; padding: 1px 0px 0px !important; position: absolute !important; top: 0px; user-select: none; width: 1px !important;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mstyle displaystyle="false"><mi mathvariant="normal">n</mi><mo>⁢</mo><mi mathvariant="normal"> </mi><mo>=</mo><mi mathvariant="normal"> </mi><mo>⁢</mo><mfrac><mi mathvariant="normal">N</mi><msub><mi mathvariant="normal">N</mi><mi mathvariant="normal">A</mi></msub></mfrac><mo>=</mo><mfrac><mrow><mn>3</mn><mo>,</mo><msup><mn>011.10</mn><mn>23</mn></msup></mrow><mrow><mn>6</mn><mo>,</mo><msup><mn>022.10</mn><mn>23</mn></msup></mrow></mfrac><mo>⁢</mo><mi mathvariant="normal"> </mi><mo>=</mo><mi mathvariant="normal"> </mi><mo>⁢</mo><mn>0</mn><mo>,</mo><mn>5</mn><mo>⁢</mo><mrow><mo>(</mo><mi>mol</mi><mo>)</mo></mrow></mstyle></math></span></span>.</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">Vậy số mol nguyên tử calcium có trong 3,011.10<span style="box-sizing: border-box; font-size: 13.5px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">23</span> nguyên tử calcium là 0,5 mol.</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;"><span style="box-sizing: border-box; font-weight: 700;">3. Bài tập tự luyện</span></p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;"><span style="box-sizing: border-box; font-weight: 700;">Bài 1: </span>Trong 0,8 mol HCl chứa số phân tử là</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">A. 3,8.10<span style="box-sizing: border-box; font-size: 13.5px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">23</span>.</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">B. 5,8.10<span style="box-sizing: border-box; font-size: 13.5px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">23</span>.</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">C. 4,8.10<span style="box-sizing: border-box; font-size: 13.5px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">23</span>.</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">D. 6,8.10<span style="box-sizing: border-box; font-size: 13.5px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">23</span>.</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;"><span style="box-sizing: border-box; font-weight: 700;">Bài 2: </span>Trong 0,2 mol nguyên tử Mg có chứa bao nhiêu nguyên tử Mg?</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">A. 1,2.10<span style="box-sizing: border-box; font-size: 13.5px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">23</span>.</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">B. 1,3.10<span style="box-sizing: border-box; font-size: 13.5px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">23</span>.</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">C. 1,4.10<span style="box-sizing: border-box; font-size: 13.5px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">23</span>.</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">D. 1,5.10<span style="box-sizing: border-box; font-size: 13.5px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">23</span>.</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;"><span style="box-sizing: border-box; font-weight: 700;">Bài 3: </span>Trong 0,6 mol khí hydrogen có bao nhiêu nguyên tử hydrogen?</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">A. 3,6.10<span style="box-sizing: border-box; font-size: 13.5px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">23</span>.</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">B. 4,2.10<span style="box-sizing: border-box; font-size: 13.5px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">23</span>.</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">C. 6,2.10<span style="box-sizing: border-box; font-size: 13.5px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">23</span>.</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">D. 7,2.10<span style="box-sizing: border-box; font-size: 13.5px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">23</span>.</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;"><span style="box-sizing: border-box; font-weight: 700;">Bài 4: </span>Trong 3 mol H<span style="bottom: -0.25em; box-sizing: border-box; font-size: 13.5px; line-height: 0; position: relative; vertical-align: baseline;">2</span>S chứa số phân tử là</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">A. 16.10<span style="box-sizing: border-box; font-size: 13.5px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">23</span>.</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">B. 17.10<span style="box-sizing: border-box; font-size: 13.5px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">23</span>.</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">C. 18.10<span style="box-sizing: border-box; font-size: 13.5px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">23</span>.</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">D. 19.10<span style="box-sizing: border-box; font-size: 13.5px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">23</span>.</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;"><span style="box-sizing: border-box; font-weight: 700;">Bài 5: </span>3,6.10<span style="box-sizing: border-box; font-size: 13.5px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">23</span> phân tử NO<span style="bottom: -0.25em; box-sizing: border-box; font-size: 13.5px; line-height: 0; position: relative; vertical-align: baseline;">2</span> tương ứng với số mol là</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">A. 0,6 mol.</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">B. 0,5 mol.</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">C. 0,4 mol.</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">D. 0,3 mol.</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: center;"><span style="box-sizing: border-box; font-weight: 700;">Đáp án bài tập tự luyện</span></p><div align="center" style="box-sizing: border-box; color: #313131; font-family: "Open Sans", Arial, sans-serif; font-size: 16px;"><table border="1" class="MsoTableGrid" style="border-collapse: collapse; border-spacing: 0px;"><tbody style="box-sizing: border-box;"><tr style="box-sizing: border-box;"><td style="box-sizing: border-box; padding: 0px;" valign="top" width="128"><p style="box-sizing: border-box; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: center;"><span style="box-sizing: border-box; font-weight: 700;">1</span></p></td><td style="box-sizing: border-box; padding: 0px;" valign="top" width="128"><p style="box-sizing: border-box; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: center;"><span style="box-sizing: border-box; font-weight: 700;">2</span></p></td><td style="box-sizing: border-box; padding: 0px;" valign="top" width="128"><p style="box-sizing: border-box; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: center;"><span style="box-sizing: border-box; font-weight: 700;">3</span></p></td><td style="box-sizing: border-box; padding: 0px;" valign="top" width="128"><p style="box-sizing: border-box; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: center;"><span style="box-sizing: border-box; font-weight: 700;">4</span></p></td><td style="box-sizing: border-box; padding: 0px;" valign="top" width="128"><p style="box-sizing: border-box; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: center;"><span style="box-sizing: border-box; font-weight: 700;">5</span></p></td></tr><tr style="box-sizing: border-box;"><td style="box-sizing: border-box; padding: 0px;" valign="top" width="128"><p style="box-sizing: border-box; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: center;"><span style="box-sizing: border-box; font-weight: 700;">C</span></p></td><td style="box-sizing: border-box; padding: 0px;" valign="top" width="128"><p style="box-sizing: border-box; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: center;"><span style="box-sizing: border-box; font-weight: 700;">A</span></p></td><td style="box-sizing: border-box; padding: 0px;" valign="top" width="128"><p style="box-sizing: border-box; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: center;"><span style="box-sizing: border-box; font-weight: 700;">D</span></p></td><td style="box-sizing: border-box; padding: 0px;" valign="top" width="128"><p style="box-sizing: border-box; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: center;"><span style="box-sizing: border-box; font-weight: 700;">C</span></p></td><td style="box-sizing: border-box; padding: 0px;" valign="top" width="128"><p style="box-sizing: border-box; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: center;"><span style="box-sizing: border-box; font-weight: 700;">A</span></p></td></tr></tbody></table></div>

Công thức tính số mol theo khái niệm

  1. Công thức tính tính số mol theo khái niệm - Công thức tính số mol theo khái niệm: n   = N N A . n ⁢   = ⁢ N N A . Trong đó: + n là số m...

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Công thức tính số mol

<p> <span style="font-family: "Open Sans", Arial, sans-serif; font-size: 18px; font-weight: 700; text-align: justify;">1. Công thức tính số mol</span></p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">- Công thức tính số mol khi biết khối lượng:</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;"><span class="mjx-chtml MathJax_CHTML" data-mathml="<math xmlns="http://www.w3.org/1998/Math/MathML"><mstyle displaystyle="false"><mi mathvariant="normal">n</mi><mo>&#x2062;</mo><mi mathvariant="normal">&#xA0;</mi><mo>=</mo><mo>&#x2062;</mo><mfrac><mi mathvariant="normal">m</mi><mi mathvariant="normal">M</mi></mfrac><mo>.</mo></mstyle></math>" id="MathJax-Element-1-Frame" role="presentation" style="border: 0px; box-sizing: border-box; direction: ltr; display: inline-block; float: none; font-size: 21.78px; line-height: 0; margin: 0px; max-height: none; max-width: none; min-height: 0px; min-width: 0px; overflow-wrap: normal; padding: 1px 0px; position: relative; text-align: left; white-space: nowrap; word-spacing: normal;" tabindex="0"><span aria-hidden="true" class="mjx-math" id="MJXc-Node-1" style="border-collapse: separate; border-spacing: 0px; box-sizing: border-box; display: inline-block;"><span class="mjx-mrow" id="MJXc-Node-2" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-mstyle" id="MJXc-Node-3" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-mrow" id="MJXc-Node-4" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-mi" id="MJXc-Node-5" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.14em; white-space: pre;">n</span></span><span class="mjx-mo" id="MJXc-Node-6" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char" style="box-sizing: content-box !important; display: block; white-space: pre;"></span></span><span class="mjx-mi" id="MJXc-Node-7" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.273em; padding-bottom: 0.324em; white-space: pre;"> </span></span><span class="mjx-mo MJXc-space3" id="MJXc-Node-8" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.278em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.094em; white-space: pre;">=</span></span><span class="mjx-mo MJXc-space3" id="MJXc-Node-9" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.278em;"><span class="mjx-char" style="box-sizing: content-box !important; display: block; white-space: pre;"></span></span><span class="mjx-mfrac" id="MJXc-Node-10" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-box MJXc-stacked" style="box-sizing: content-box !important; display: inline-block; height: 0px; padding: 0px 0.12em; position: relative; width: 0.79em;"><span class="mjx-numerator" style="box-sizing: content-box !important; display: block; font-size: 15.3985px; position: absolute; text-align: center; top: -1.052em; width: 1.117em;"><span class="mjx-mi" id="MJXc-Node-11" style="box-sizing: content-box !important; display: inline-block; text-align: left;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.14em; white-space: pre;">m</span></span></span><span class="mjx-denominator" style="bottom: -0.586em; box-sizing: content-box !important; display: block; font-size: 15.3985px; position: absolute; text-align: center; width: 1.117em;"><span class="mjx-mi" id="MJXc-Node-12" style="box-sizing: content-box !important; display: inline-block; text-align: left;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.416em; white-space: pre;">M</span></span></span><span class="mjx-line" style="border-bottom: 1.3px solid; box-sizing: content-box !important; display: block; height: 0px; position: absolute; top: -0.28em; width: 0.79em;"></span></span><span class="mjx-vsize" style="box-sizing: content-box !important; display: inline-block; height: 1.158em; vertical-align: -0.414em; width: 0px;"></span></span><span class="mjx-mo" id="MJXc-Node-13" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.181em; padding-bottom: 0.324em; white-space: pre;">.</span></span></span></span></span></span><span class="MJX_Assistive_MathML" role="presentation" style="border: 0px !important; box-sizing: border-box; clip: rect(1px, 1px, 1px, 1px); display: block !important; height: 1px !important; left: 0px; overflow: hidden !important; padding: 1px 0px 0px !important; position: absolute !important; top: 0px; user-select: none; width: 1px !important;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mstyle displaystyle="false"><mi mathvariant="normal">n</mi><mo>⁢</mo><mi mathvariant="normal"> </mi><mo>=</mo><mo>⁢</mo><mfrac><mi mathvariant="normal">m</mi><mi mathvariant="normal">M</mi></mfrac><mo>.</mo></mstyle></math></span></span></p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">Trong đó:</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">+ m: khối lượng chất (g);</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">+ M: khối lượng mol (g/mol).</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">- Công thức tính số mol khí khi biết thể tích ở điều kiện chuẩn (25℃, 1 bar):</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;"><span class="mjx-chtml MathJax_CHTML" data-mathml="<math xmlns="http://www.w3.org/1998/Math/MathML"><mstyle displaystyle="false"><mi mathvariant="normal">n</mi><mo>&#x2062;</mo><mi mathvariant="normal">&#xA0;</mi><mo>=</mo><mo>&#x2062;</mo><mfrac><mi mathvariant="normal">V</mi><mrow><mn>24</mn><mo>,</mo><mn>79</mn></mrow></mfrac><mo>.</mo></mstyle></math>" id="MathJax-Element-2-Frame" role="presentation" style="border: 0px; box-sizing: border-box; direction: ltr; display: inline-block; float: none; font-size: 21.78px; line-height: 0; margin: 0px; max-height: none; max-width: none; min-height: 0px; min-width: 0px; overflow-wrap: normal; padding: 1px 0px; position: relative; text-align: left; white-space: nowrap; word-spacing: normal;" tabindex="0"><span aria-hidden="true" class="mjx-math" id="MJXc-Node-14" style="border-collapse: separate; border-spacing: 0px; box-sizing: border-box; display: inline-block;"><span class="mjx-mrow" id="MJXc-Node-15" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-mstyle" id="MJXc-Node-16" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-mrow" id="MJXc-Node-17" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-mi" id="MJXc-Node-18" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.14em; white-space: pre;">n</span></span><span class="mjx-mo" id="MJXc-Node-19" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char" style="box-sizing: content-box !important; display: block; white-space: pre;"></span></span><span class="mjx-mi" id="MJXc-Node-20" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.273em; padding-bottom: 0.324em; white-space: pre;"> </span></span><span class="mjx-mo MJXc-space3" id="MJXc-Node-21" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.278em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.094em; white-space: pre;">=</span></span><span class="mjx-mo MJXc-space3" id="MJXc-Node-22" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.278em;"><span class="mjx-char" style="box-sizing: content-box !important; display: block; white-space: pre;"></span></span><span class="mjx-mfrac" id="MJXc-Node-23" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-box MJXc-stacked" style="box-sizing: content-box !important; display: inline-block; height: 0px; padding: 0px 0.12em; position: relative; width: 1.752em;"><span class="mjx-numerator" style="box-sizing: content-box !important; display: block; font-size: 15.3985px; position: absolute; text-align: center; top: -1.315em; width: 2.478em;"><span class="mjx-mi" id="MJXc-Node-24" style="box-sizing: content-box !important; display: inline-block; text-align: left;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.416em; white-space: pre;">V</span></span></span><span class="mjx-denominator" style="bottom: -0.774em; box-sizing: content-box !important; display: block; font-size: 15.3985px; position: absolute; text-align: center; width: 2.478em;"><span class="mjx-mrow" id="MJXc-Node-25" style="box-sizing: content-box !important; display: inline-block; text-align: left;"><span class="mjx-mn" id="MJXc-Node-26" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.37em; white-space: pre;">24</span></span><span class="mjx-mo" id="MJXc-Node-27" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.181em; padding-bottom: 0.553em; white-space: pre;">,</span></span><span class="mjx-mn" id="MJXc-Node-28" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.37em; white-space: pre;">79</span></span></span></span><span class="mjx-line" style="border-bottom: 1.3px solid; box-sizing: content-box !important; display: block; height: 0px; position: absolute; top: -0.28em; width: 1.752em;"></span></span><span class="mjx-vsize" style="box-sizing: content-box !important; display: inline-block; height: 1.477em; vertical-align: -0.547em; width: 0px;"></span></span><span class="mjx-mo" id="MJXc-Node-29" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.181em; padding-bottom: 0.324em; white-space: pre;">.</span></span></span></span></span></span><span class="MJX_Assistive_MathML" role="presentation" style="border: 0px !important; box-sizing: border-box; clip: rect(1px, 1px, 1px, 1px); display: block !important; height: 1px !important; left: 0px; overflow: hidden !important; padding: 1px 0px 0px !important; position: absolute !important; top: 0px; user-select: none; width: 1px !important;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mstyle displaystyle="false"><mi mathvariant="normal">n</mi><mo>⁢</mo><mi mathvariant="normal"> </mi><mo>=</mo><mo>⁢</mo><mfrac><mi mathvariant="normal">V</mi><mrow><mn>24</mn><mo>,</mo><mn>79</mn></mrow></mfrac><mo>.</mo></mstyle></math></span></span></p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">Trong đó:</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">+ V: thể tích khí ở điều kiện chuẩn (L).</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">- Công thức tính số mol khi biết nồng độ mol và thể tích dung dịch:      </p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: center;">n = C<span style="bottom: -0.25em; box-sizing: border-box; font-size: 13.5px; line-height: 0; position: relative; vertical-align: baseline;">M</span>.V<span style="bottom: -0.25em; box-sizing: border-box; font-size: 13.5px; line-height: 0; position: relative; vertical-align: baseline;">dd</span>.</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">Trong đó:</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">+ C<span style="bottom: -0.25em; box-sizing: border-box; font-size: 13.5px; line-height: 0; position: relative; vertical-align: baseline;">M</span>: nồng độ dung dịch (mol/L);</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">+ V<span style="bottom: -0.25em; box-sizing: border-box; font-size: 13.5px; line-height: 0; position: relative; vertical-align: baseline;">dd</span>: thể tích dung dịch (L).</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">- Công thức tính số mol khi biết nồng độ phần trăm và khối lượng dung dịch:</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: center;">n = <span class="mjx-chtml MathJax_CHTML" data-mathml="<math xmlns="http://www.w3.org/1998/Math/MathML"><mfrac><mrow><mi mathvariant="normal">C</mi><mo>%</mo><mo>.</mo><msub><mi mathvariant="normal">m</mi><mi>dd</mi></msub></mrow><mrow><mn>100</mn><mo>%</mo><mo>.</mo><msub><mi mathvariant="normal">M</mi><mi>ct</mi></msub></mrow></mfrac><mo>.</mo></math>" id="MathJax-Element-3-Frame" role="presentation" style="border: 0px; box-sizing: border-box; direction: ltr; display: inline-block; float: none; font-size: 21.78px; line-height: 0; margin: 0px; max-height: none; max-width: none; min-height: 0px; min-width: 0px; overflow-wrap: normal; padding: 1px 0px; position: relative; text-align: left; white-space: nowrap; word-spacing: normal;" tabindex="0"><span aria-hidden="true" class="mjx-math" id="MJXc-Node-30" style="border-collapse: separate; border-spacing: 0px; box-sizing: border-box; display: inline-block;"><span class="mjx-mrow" id="MJXc-Node-31" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-mfrac" id="MJXc-Node-32" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-box MJXc-stacked" style="box-sizing: content-box !important; display: inline-block; height: 0px; padding: 0px 0.12em; position: relative; width: 3.078em;"><span class="mjx-numerator" style="box-sizing: content-box !important; display: block; font-size: 15.3985px; position: absolute; text-align: center; top: -1.515em; width: 4.352em;"><span class="mjx-mrow" id="MJXc-Node-33" style="box-sizing: content-box !important; display: inline-block; text-align: left;"><span class="mjx-mi" id="MJXc-Node-34" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.416em; white-space: pre;">C</span></span><span class="mjx-mo" id="MJXc-Node-35" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.416em; padding-top: 0.461em; white-space: pre;">%</span></span><span class="mjx-mo" id="MJXc-Node-36" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.181em; padding-bottom: 0.324em; white-space: pre;">.</span></span><span class="mjx-msub" id="MJXc-Node-37" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-base" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-mi" id="MJXc-Node-38" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.14em; white-space: pre;">m</span></span></span><span class="mjx-sub" style="box-sizing: content-box !important; display: inline-block; font-size: 10.8867px; padding-right: 0.071em; vertical-align: -0.219em;"><span class="mjx-mi" id="MJXc-Node-39" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.416em; white-space: pre;">dd</span></span></span></span></span></span><span class="mjx-denominator" style="bottom: -0.804em; box-sizing: content-box !important; display: block; font-size: 15.3985px; position: absolute; text-align: center; width: 4.352em;"><span class="mjx-mrow" id="MJXc-Node-40" style="box-sizing: content-box !important; display: inline-block; text-align: left;"><span class="mjx-mn" id="MJXc-Node-41" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.37em; white-space: pre;">100</span></span><span class="mjx-mo" id="MJXc-Node-42" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.416em; padding-top: 0.461em; white-space: pre;">%</span></span><span class="mjx-mo" id="MJXc-Node-43" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.181em; padding-bottom: 0.324em; white-space: pre;">.</span></span><span class="mjx-msub" id="MJXc-Node-44" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-base" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-mi" id="MJXc-Node-45" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.416em; white-space: pre;">M</span></span></span><span class="mjx-sub" style="box-sizing: content-box !important; display: inline-block; font-size: 10.8867px; padding-right: 0.071em; vertical-align: -0.212em;"><span class="mjx-mi" id="MJXc-Node-46" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.324em; white-space: pre;">ct</span></span></span></span></span></span><span class="mjx-line" style="border-bottom: 1.3px solid; box-sizing: content-box !important; display: block; height: 0px; position: absolute; top: -0.28em; width: 3.078em;"></span></span><span class="mjx-vsize" style="box-sizing: content-box !important; display: inline-block; height: 1.64em; vertical-align: -0.568em; width: 0px;"></span></span><span class="mjx-mo" id="MJXc-Node-47" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.181em; padding-bottom: 0.324em; white-space: pre;">.</span></span></span></span><span class="MJX_Assistive_MathML" role="presentation" style="border: 0px !important; box-sizing: border-box; clip: rect(1px, 1px, 1px, 1px); display: block !important; height: 1px !important; left: 0px; overflow: hidden !important; padding: 1px 0px 0px !important; position: absolute !important; top: 0px; user-select: none; width: 1px !important;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mfrac><mrow><mi mathvariant="normal">C</mi><mo>%</mo><mo>.</mo><msub><mi mathvariant="normal">m</mi><mi>dd</mi></msub></mrow><mrow><mn>100</mn><mo>%</mo><mo>.</mo><msub><mi mathvariant="normal">M</mi><mi>ct</mi></msub></mrow></mfrac><mo>.</mo></math></span></span></p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">Trong đó:</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">+ C%: nồng độ phần trăm của dung dịch, đơn vị %;</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">+ m<span style="bottom: -0.25em; box-sizing: border-box; font-size: 13.5px; line-height: 0; position: relative; vertical-align: baseline;">dd</span>: khối lượng dung dịch (g);</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">+ M<span style="bottom: -0.25em; box-sizing: border-box; font-size: 13.5px; line-height: 0; position: relative; vertical-align: baseline;">ct</span>: khối lượng mol chất tan (g/mol).</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">- Công thức tính số mol khi biết nồng độ phần trăm, thể tích và khối lượng riêng của dung dịch:</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: center;">n = <span class="mjx-chtml MathJax_CHTML" data-mathml="<math xmlns="http://www.w3.org/1998/Math/MathML"><mstyle displaystyle="false"><mfrac><mrow><msub><mi mathvariant="normal">V</mi><mi>dd</mi></msub><mo>.</mo><mi mathvariant="normal">D</mi><mo>.</mo><mi mathvariant="normal">C</mi><mo>%</mo></mrow><mrow><mn>100</mn><mo>%</mo><mo>.</mo><mi mathvariant="normal">M</mi></mrow></mfrac><mo>.</mo></mstyle></math>" id="MathJax-Element-4-Frame" role="presentation" style="border: 0px; box-sizing: border-box; direction: ltr; display: inline-block; float: none; font-size: 21.78px; line-height: 0; margin: 0px; max-height: none; max-width: none; min-height: 0px; min-width: 0px; overflow-wrap: normal; padding: 1px 0px; position: relative; text-align: left; white-space: nowrap; word-spacing: normal;" tabindex="0"><span aria-hidden="true" class="mjx-math" id="MJXc-Node-48" style="border-collapse: separate; border-spacing: 0px; box-sizing: border-box; display: inline-block;"><span class="mjx-mrow" id="MJXc-Node-49" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-mstyle" id="MJXc-Node-50" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-mrow" id="MJXc-Node-51" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-mfrac" id="MJXc-Node-52" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-box MJXc-stacked" style="box-sizing: content-box !important; display: inline-block; height: 0px; padding: 0px 0.12em; position: relative; width: 3.286em;"><span class="mjx-numerator" style="box-sizing: content-box !important; display: block; font-size: 15.3985px; position: absolute; text-align: center; top: -1.515em; width: 4.647em;"><span class="mjx-mrow" id="MJXc-Node-53" style="box-sizing: content-box !important; display: inline-block; text-align: left;"><span class="mjx-msub" id="MJXc-Node-54" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-base" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-mi" id="MJXc-Node-55" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.416em; white-space: pre;">V</span></span></span><span class="mjx-sub" style="box-sizing: content-box !important; display: inline-block; font-size: 10.8867px; padding-right: 0.071em; vertical-align: -0.219em;"><span class="mjx-mi" id="MJXc-Node-56" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.416em; white-space: pre;">dd</span></span></span></span><span class="mjx-mo" id="MJXc-Node-57" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.181em; padding-bottom: 0.324em; white-space: pre;">.</span></span><span class="mjx-mi" id="MJXc-Node-58" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.416em; white-space: pre;">D</span></span><span class="mjx-mo" id="MJXc-Node-59" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.181em; padding-bottom: 0.324em; white-space: pre;">.</span></span><span class="mjx-mi" id="MJXc-Node-60" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.416em; white-space: pre;">C</span></span><span class="mjx-mo" id="MJXc-Node-61" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.416em; padding-top: 0.461em; white-space: pre;">%</span></span></span></span><span class="mjx-denominator" style="bottom: -0.709em; box-sizing: content-box !important; display: block; font-size: 15.3985px; position: absolute; text-align: center; width: 4.647em;"><span class="mjx-mrow" id="MJXc-Node-62" style="box-sizing: content-box !important; display: inline-block; text-align: left;"><span class="mjx-mn" id="MJXc-Node-63" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.37em; white-space: pre;">100</span></span><span class="mjx-mo" id="MJXc-Node-64" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.416em; padding-top: 0.461em; white-space: pre;">%</span></span><span class="mjx-mo" id="MJXc-Node-65" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.181em; padding-bottom: 0.324em; white-space: pre;">.</span></span><span class="mjx-mi" id="MJXc-Node-66" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.416em; white-space: pre;">M</span></span></span></span><span class="mjx-line" style="border-bottom: 1.3px solid; box-sizing: content-box !important; display: block; height: 0px; position: absolute; top: -0.28em; width: 3.286em;"></span></span><span class="mjx-vsize" style="box-sizing: content-box !important; display: inline-block; height: 1.573em; vertical-align: -0.501em; width: 0px;"></span></span><span class="mjx-mo" id="MJXc-Node-67" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.181em; padding-bottom: 0.324em; white-space: pre;">.</span></span></span></span></span></span><span class="MJX_Assistive_MathML" role="presentation" style="border: 0px !important; box-sizing: border-box; clip: rect(1px, 1px, 1px, 1px); display: block !important; height: 1px !important; left: 0px; overflow: hidden !important; padding: 1px 0px 0px !important; position: absolute !important; top: 0px; user-select: none; width: 1px !important;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mstyle displaystyle="false"><mfrac><mrow><msub><mi mathvariant="normal">V</mi><mi>dd</mi></msub><mo>.</mo><mi mathvariant="normal">D</mi><mo>.</mo><mi mathvariant="normal">C</mi><mo>%</mo></mrow><mrow><mn>100</mn><mo>%</mo><mo>.</mo><mi mathvariant="normal">M</mi></mrow></mfrac><mo>.</mo></mstyle></math></span></span></p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">Trong đó:</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">+ V<span style="bottom: -0.25em; box-sizing: border-box; font-size: 13.5px; line-height: 0; position: relative; vertical-align: baseline;">dd</span>: thể tích dung dịch (đơn vị: ml);</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">+ D: khối lượng riêng (g/ml);</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">+ C%: là nồng độ phần trăm của dung dịch, đơn vị %;</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">+ M: khối lượng mol (g/mol).</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">- Công thức tính số mol khí khi biết áp suất, thể tích và nhiệt độ xác định:</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: center;">n = <span class="mjx-chtml MathJax_CHTML" data-mathml="<math xmlns="http://www.w3.org/1998/Math/MathML"><mstyle displaystyle="false"><mfrac><mrow><mi mathvariant="normal">P</mi><mo>.</mo><mi mathvariant="normal">V</mi></mrow><mrow><mi mathvariant="normal">R</mi><mo>.</mo><mi mathvariant="normal">T</mi></mrow></mfrac><mo>.</mo></mstyle></math>" id="MathJax-Element-5-Frame" role="presentation" style="border: 0px; box-sizing: border-box; direction: ltr; display: inline-block; float: none; font-size: 21.78px; line-height: 0; margin: 0px; max-height: none; max-width: none; min-height: 0px; min-width: 0px; overflow-wrap: normal; padding: 1px 0px; position: relative; text-align: left; white-space: nowrap; word-spacing: normal;" tabindex="0"><span aria-hidden="true" class="mjx-math" id="MJXc-Node-68" style="border-collapse: separate; border-spacing: 0px; box-sizing: border-box; display: inline-block;"><span class="mjx-mrow" id="MJXc-Node-69" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-mstyle" id="MJXc-Node-70" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-mrow" id="MJXc-Node-71" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-mfrac" id="MJXc-Node-72" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-box MJXc-stacked" style="box-sizing: content-box !important; display: inline-block; height: 0px; padding: 0px 0.12em; position: relative; width: 1.369em;"><span class="mjx-numerator" style="box-sizing: content-box !important; display: block; font-size: 15.3985px; position: absolute; text-align: center; top: -1.315em; width: 1.936em;"><span class="mjx-mrow" id="MJXc-Node-73" style="box-sizing: content-box !important; display: inline-block; text-align: left;"><span class="mjx-mi" id="MJXc-Node-74" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.416em; white-space: pre;">P</span></span><span class="mjx-mo" id="MJXc-Node-75" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.181em; padding-bottom: 0.324em; white-space: pre;">.</span></span><span class="mjx-mi" id="MJXc-Node-76" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.416em; white-space: pre;">V</span></span></span></span><span class="mjx-denominator" style="bottom: -0.608em; box-sizing: content-box !important; display: block; font-size: 15.3985px; position: absolute; text-align: center; width: 1.936em;"><span class="mjx-mrow" id="MJXc-Node-77" style="box-sizing: content-box !important; display: inline-block; text-align: left;"><span class="mjx-mi" id="MJXc-Node-78" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.416em; white-space: pre;">R</span></span><span class="mjx-mo" id="MJXc-Node-79" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.181em; padding-bottom: 0.324em; white-space: pre;">.</span></span><span class="mjx-mi" id="MJXc-Node-80" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.37em; white-space: pre;">T</span></span></span></span><span class="mjx-line" style="border-bottom: 1.3px solid; box-sizing: content-box !important; display: block; height: 0px; position: absolute; top: -0.28em; width: 1.369em;"></span></span><span class="mjx-vsize" style="box-sizing: content-box !important; display: inline-block; height: 1.36em; vertical-align: -0.43em; width: 0px;"></span></span><span class="mjx-mo" id="MJXc-Node-81" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.181em; padding-bottom: 0.324em; white-space: pre;">.</span></span></span></span></span></span><span class="MJX_Assistive_MathML" role="presentation" style="border: 0px !important; box-sizing: border-box; clip: rect(1px, 1px, 1px, 1px); display: block !important; height: 1px !important; left: 0px; overflow: hidden !important; padding: 1px 0px 0px !important; position: absolute !important; top: 0px; user-select: none; width: 1px !important;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mstyle displaystyle="false"><mfrac><mrow><mi mathvariant="normal">P</mi><mo>.</mo><mi mathvariant="normal">V</mi></mrow><mrow><mi mathvariant="normal">R</mi><mo>.</mo><mi mathvariant="normal">T</mi></mrow></mfrac><mo>.</mo></mstyle></math></span></span></p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">Trong đó:</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">+ P: áp suất (atm);</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">+ V: thể tích (L);</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">+ R: hằng số (R = 0,082);</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">+ T: Nhiệt độ kelvin (T = ℃ + 273).</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">- Công thức tính số mol theo khái niệm:</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;"><span class="mjx-chtml MathJax_CHTML" data-mathml="<math xmlns="http://www.w3.org/1998/Math/MathML"><mstyle displaystyle="false"><mi mathvariant="normal">n</mi><mo>&#x2062;</mo><mi mathvariant="normal">&#xA0;</mi><mo>=</mo><mo>&#x2062;</mo><mi mathvariant="normal">&#xA0;</mi><mo>&#x2062;</mo><mfrac><mi mathvariant="normal">N</mi><msub><mi mathvariant="normal">N</mi><mi mathvariant="normal">A</mi></msub></mfrac><mo>.</mo></mstyle></math>" id="MathJax-Element-6-Frame" role="presentation" style="border: 0px; box-sizing: border-box; direction: ltr; display: inline-block; float: none; font-size: 21.78px; line-height: 0; margin: 0px; max-height: none; max-width: none; min-height: 0px; min-width: 0px; overflow-wrap: normal; padding: 1px 0px; position: relative; text-align: left; white-space: nowrap; word-spacing: normal;" tabindex="0"><span aria-hidden="true" class="mjx-math" id="MJXc-Node-82" style="border-collapse: separate; border-spacing: 0px; box-sizing: border-box; display: inline-block;"><span class="mjx-mrow" id="MJXc-Node-83" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-mstyle" id="MJXc-Node-84" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-mrow" id="MJXc-Node-85" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-mi" id="MJXc-Node-86" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.14em; white-space: pre;">n</span></span><span class="mjx-mo" id="MJXc-Node-87" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char" style="box-sizing: content-box !important; display: block; white-space: pre;"></span></span><span class="mjx-mi" id="MJXc-Node-88" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.273em; padding-bottom: 0.324em; white-space: pre;"> </span></span><span class="mjx-mo MJXc-space3" id="MJXc-Node-89" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.278em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.094em; white-space: pre;">=</span></span><span class="mjx-mo MJXc-space3" id="MJXc-Node-90" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.278em;"><span class="mjx-char" style="box-sizing: content-box !important; display: block; white-space: pre;"></span></span><span class="mjx-mi" id="MJXc-Node-91" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.273em; padding-bottom: 0.324em; white-space: pre;"> </span></span><span class="mjx-mo" id="MJXc-Node-92" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char" style="box-sizing: content-box !important; display: block; white-space: pre;"></span></span><span class="mjx-mfrac" id="MJXc-Node-93" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-box MJXc-stacked" style="box-sizing: content-box !important; display: inline-block; height: 0px; padding: 0px 0.12em; position: relative; width: 1.072em;"><span class="mjx-numerator" style="box-sizing: content-box !important; display: block; font-size: 15.3985px; position: absolute; text-align: center; top: -1.293em; width: 1.516em;"><span class="mjx-mi" id="MJXc-Node-94" style="box-sizing: content-box !important; display: inline-block; text-align: left;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.416em; white-space: pre;">N</span></span></span><span class="mjx-denominator" style="bottom: -0.749em; box-sizing: content-box !important; display: block; font-size: 15.3985px; position: absolute; text-align: center; width: 1.516em;"><span class="mjx-msub" id="MJXc-Node-95" style="box-sizing: content-box !important; display: inline-block; text-align: left;"><span class="mjx-base" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-mi" id="MJXc-Node-96" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.416em; white-space: pre;">N</span></span></span><span class="mjx-sub" style="box-sizing: content-box !important; display: inline-block; font-size: 10.8867px; padding-right: 0.071em; vertical-align: -0.241em;"><span class="mjx-mi" id="MJXc-Node-97" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.416em; white-space: pre;">A</span></span></span></span></span><span class="mjx-line" style="border-bottom: 1.3px solid; box-sizing: content-box !important; display: block; height: 0px; position: absolute; top: -0.28em; width: 1.072em;"></span></span><span class="mjx-vsize" style="box-sizing: content-box !important; display: inline-block; height: 1.444em; vertical-align: -0.53em; width: 0px;"></span></span><span class="mjx-mo" id="MJXc-Node-98" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.181em; padding-bottom: 0.324em; white-space: pre;">.</span></span></span></span></span></span><span class="MJX_Assistive_MathML" role="presentation" style="border: 0px !important; box-sizing: border-box; clip: rect(1px, 1px, 1px, 1px); display: block !important; height: 1px !important; left: 0px; overflow: hidden !important; padding: 1px 0px 0px !important; position: absolute !important; top: 0px; user-select: none; width: 1px !important;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mstyle displaystyle="false"><mi mathvariant="normal">n</mi><mo>⁢</mo><mi mathvariant="normal"> </mi><mo>=</mo><mo>⁢</mo><mi mathvariant="normal"> </mi><mo>⁢</mo><mfrac><mi mathvariant="normal">N</mi><msub><mi mathvariant="normal">N</mi><mi mathvariant="normal">A</mi></msub></mfrac><mo>.</mo></mstyle></math></span></span></p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">Trong đó:</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">+ n là số mol nguyên tử, phân tử, ion (mol).</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">+ N là số nguyên tử, phân tử.</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">+ N<span style="bottom: -0.25em; box-sizing: border-box; font-size: 13.5px; line-height: 0; position: relative; vertical-align: baseline;">A </span>là số Avogadro (N<span style="bottom: -0.25em; box-sizing: border-box; font-size: 13.5px; line-height: 0; position: relative; vertical-align: baseline;">A</span> = 6,022.10<span style="box-sizing: border-box; font-size: 13.5px; line-height: 0; position: relative; top: -0.5em; vertical-align: baseline;">23</span>).</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;"><span style="box-sizing: border-box; font-weight: 700;">2. Ví dụ minh họa</span></p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;"><span style="box-sizing: border-box; font-weight: 700;">Ví dụ 1:</span> Tính số mol của những lượng chất sau:</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">a) 5,6 g Fe.</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">b) 500 ml dung dịch NaOH 1M.</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">c) 100 g dung dịch NaCl 10%.</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">d) 120 ml dung dịch KCl 20% (D = 1,98 g/ml).</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;"><span style="box-sizing: border-box; font-weight: 700;">Hướng dẫn giải</span></p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">a) <span class="mjx-chtml MathJax_CHTML" data-mathml="<math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi mathvariant="normal">n</mi><mi>Fe</mi></msub><mo>&#x2062;</mo><mi mathvariant="normal">&#xA0;</mi><mo>=</mo><mo>&#x2062;</mo><mfrac><mi mathvariant="normal">m</mi><mi mathvariant="normal">M</mi></mfrac><mo>&#x2062;</mo><mo>&#x2062;</mo><mi mathvariant="normal">&#xA0;</mi><mo>=</mo><mi mathvariant="normal">&#xA0;</mi><mo>&#x2062;</mo><mfrac><mrow><mn>5</mn><mo>,</mo><mn>6</mn></mrow><mn>56</mn></mfrac><mo>&#x2062;</mo><mi mathvariant="normal">&#xA0;</mi><mo>=</mo><mo>&#x2062;</mo><mn>0</mn><mo>,</mo><mn>1</mn><mo>&#x2062;</mo><mrow><mo>(</mo><mi>mol</mi><mo>)</mo></mrow><mo>.</mo></math>" id="MathJax-Element-7-Frame" role="presentation" style="border: 0px; box-sizing: border-box; direction: ltr; display: inline-block; float: none; font-size: 21.78px; line-height: 0; margin: 0px; max-height: none; max-width: none; min-height: 0px; min-width: 0px; overflow-wrap: normal; padding: 1px 0px; position: relative; text-align: left; white-space: nowrap; word-spacing: normal;" tabindex="0"><span aria-hidden="true" class="mjx-math" id="MJXc-Node-99" style="border-collapse: separate; border-spacing: 0px; box-sizing: border-box; display: inline-block;"><span class="mjx-mrow" id="MJXc-Node-100" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-msub" id="MJXc-Node-101" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-base" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-mi" id="MJXc-Node-102" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.14em; white-space: pre;">n</span></span></span><span class="mjx-sub" style="box-sizing: content-box !important; display: inline-block; font-size: 15.3985px; padding-right: 0.071em; vertical-align: -0.212em;"><span class="mjx-mi" id="MJXc-Node-103" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.416em; white-space: pre;">Fe</span></span></span></span><span class="mjx-mo" id="MJXc-Node-104" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char" style="box-sizing: content-box !important; display: block; white-space: pre;"></span></span><span class="mjx-mi" id="MJXc-Node-105" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.273em; padding-bottom: 0.324em; white-space: pre;"> </span></span><span class="mjx-mo MJXc-space3" id="MJXc-Node-106" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.278em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.094em; white-space: pre;">=</span></span><span class="mjx-mo MJXc-space3" id="MJXc-Node-107" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.278em;"><span class="mjx-char" style="box-sizing: content-box !important; display: block; white-space: pre;"></span></span><span class="mjx-mfrac" id="MJXc-Node-108" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-box MJXc-stacked" style="box-sizing: content-box !important; display: inline-block; height: 0px; padding: 0px 0.12em; position: relative; width: 0.79em;"><span class="mjx-numerator" style="box-sizing: content-box !important; display: block; font-size: 15.3985px; position: absolute; text-align: center; top: -1.052em; width: 1.117em;"><span class="mjx-mi" id="MJXc-Node-109" style="box-sizing: content-box !important; display: inline-block; text-align: left;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.14em; white-space: pre;">m</span></span></span><span class="mjx-denominator" style="bottom: -0.586em; box-sizing: content-box !important; display: block; font-size: 15.3985px; position: absolute; text-align: center; width: 1.117em;"><span class="mjx-mi" id="MJXc-Node-110" style="box-sizing: content-box !important; display: inline-block; text-align: left;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.416em; white-space: pre;">M</span></span></span><span class="mjx-line" style="border-bottom: 1.3px solid; box-sizing: content-box !important; display: block; height: 0px; position: absolute; top: -0.28em; width: 0.79em;"></span></span><span class="mjx-vsize" style="box-sizing: content-box !important; display: inline-block; height: 1.158em; vertical-align: -0.414em; width: 0px;"></span></span><span class="mjx-mo" id="MJXc-Node-111" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char" style="box-sizing: content-box !important; display: block; white-space: pre;"></span></span><span class="mjx-mo" id="MJXc-Node-112" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char" style="box-sizing: content-box !important; display: block; white-space: pre;"></span></span><span class="mjx-mi" id="MJXc-Node-113" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.273em; padding-bottom: 0.324em; white-space: pre;"> </span></span><span class="mjx-mo MJXc-space3" id="MJXc-Node-114" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.278em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.094em; white-space: pre;">=</span></span><span class="mjx-mi MJXc-space3" id="MJXc-Node-115" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.278em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.273em; padding-bottom: 0.324em; white-space: pre;"> </span></span><span class="mjx-mo" id="MJXc-Node-116" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char" style="box-sizing: content-box !important; display: block; white-space: pre;"></span></span><span class="mjx-mfrac" id="MJXc-Node-117" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-box MJXc-stacked" style="box-sizing: content-box !important; display: inline-block; height: 0px; padding: 0px 0.12em; position: relative; width: 1.045em;"><span class="mjx-numerator" style="box-sizing: content-box !important; display: block; font-size: 15.3985px; position: absolute; text-align: center; top: -1.47em; width: 1.478em;"><span class="mjx-mrow" id="MJXc-Node-118" style="box-sizing: content-box !important; display: inline-block; text-align: left;"><span class="mjx-mn" id="MJXc-Node-119" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.37em; white-space: pre;">5</span></span><span class="mjx-mo" id="MJXc-Node-120" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.181em; padding-bottom: 0.553em; white-space: pre;">,</span></span><span class="mjx-mn" id="MJXc-Node-121" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.37em; white-space: pre;">6</span></span></span></span><span class="mjx-denominator" style="bottom: -0.591em; box-sizing: content-box !important; display: block; font-size: 15.3985px; position: absolute; text-align: center; width: 1.478em;"><span class="mjx-mn" id="MJXc-Node-122" style="box-sizing: content-box !important; display: inline-block; text-align: left;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.37em; white-space: pre;">56</span></span></span><span class="mjx-line" style="border-bottom: 1.3px solid; box-sizing: content-box !important; display: block; height: 0px; position: absolute; top: -0.28em; width: 1.045em;"></span></span><span class="mjx-vsize" style="box-sizing: content-box !important; display: inline-block; height: 1.457em; vertical-align: -0.418em; width: 0px;"></span></span><span class="mjx-mo" id="MJXc-Node-123" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char" style="box-sizing: content-box !important; display: block; white-space: pre;"></span></span><span class="mjx-mi" id="MJXc-Node-124" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.273em; padding-bottom: 0.324em; white-space: pre;"> </span></span><span class="mjx-mo MJXc-space3" id="MJXc-Node-125" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.278em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.094em; white-space: pre;">=</span></span><span class="mjx-mo MJXc-space3" id="MJXc-Node-126" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.278em;"><span class="mjx-char" style="box-sizing: content-box !important; display: block; white-space: pre;"></span></span><span class="mjx-mn" id="MJXc-Node-127" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.37em; white-space: pre;">0</span></span><span class="mjx-mo" id="MJXc-Node-128" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.181em; padding-bottom: 0.553em; white-space: pre;">,</span></span><span class="mjx-mn MJXc-space1" id="MJXc-Node-129" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.167em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.37em; white-space: pre;">1</span></span><span class="mjx-mo" id="MJXc-Node-130" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char" style="box-sizing: content-box !important; display: block; white-space: pre;"></span></span><span class="mjx-mrow MJXc-space1" id="MJXc-Node-131" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.167em;"><span class="mjx-mo" id="MJXc-Node-132" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.599em; padding-top: 0.461em; white-space: pre;">(</span></span><span class="mjx-mi" id="MJXc-Node-133" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.416em; white-space: pre;">mol</span></span><span class="mjx-mo" id="MJXc-Node-134" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.599em; padding-top: 0.461em; white-space: pre;">)</span></span></span><span class="mjx-mo MJXc-space1" id="MJXc-Node-135" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.167em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.181em; padding-bottom: 0.324em; white-space: pre;">.</span></span></span></span><span class="MJX_Assistive_MathML" role="presentation" style="border: 0px !important; box-sizing: border-box; clip: rect(1px, 1px, 1px, 1px); display: block !important; height: 1px !important; left: 0px; overflow: hidden !important; padding: 1px 0px 0px !important; position: absolute !important; top: 0px; user-select: none; width: 1px !important;"><math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi mathvariant="normal">n</mi><mi>Fe</mi></msub><mo>⁢</mo><mi mathvariant="normal"> </mi><mo>=</mo><mo>⁢</mo><mfrac><mi mathvariant="normal">m</mi><mi mathvariant="normal">M</mi></mfrac><mo>⁢</mo><mo>⁢</mo><mi mathvariant="normal"> </mi><mo>=</mo><mi mathvariant="normal"> </mi><mo>⁢</mo><mfrac><mrow><mn>5</mn><mo>,</mo><mn>6</mn></mrow><mn>56</mn></mfrac><mo>⁢</mo><mi mathvariant="normal"> </mi><mo>=</mo><mo>⁢</mo><mn>0</mn><mo>,</mo><mn>1</mn><mo>⁢</mo><mrow><mo>(</mo><mi>mol</mi><mo>)</mo></mrow><mo>.</mo></math></span></span></p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">b) n<span style="bottom: -0.25em; box-sizing: border-box; font-size: 13.5px; line-height: 0; position: relative; vertical-align: baseline;">NaOH</span> = C<span style="bottom: -0.25em; box-sizing: border-box; font-size: 13.5px; line-height: 0; position: relative; vertical-align: baseline;">M</span>.V = 1.0,5 = 0,5 (mol).</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">c) <span class="mjx-chtml MathJax_CHTML" data-mathml="<math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi mathvariant="normal">n</mi><mi>NaCl</mi></msub><mo>=</mo><mfrac><mrow><mi mathvariant="normal">C</mi><mo>%</mo><mo>.</mo><msub><mi mathvariant="normal">m</mi><mi>dd</mi></msub></mrow><mrow><mn>100</mn><mo>%</mo><mo>.</mo><msub><mi mathvariant="normal">M</mi><mi>ct</mi></msub></mrow></mfrac><mo>&#x2062;</mo><mi mathvariant="normal">&#xA0;</mi><mo>=</mo><mi mathvariant="normal">&#xA0;</mi><mo>&#x2062;</mo><mfrac><mn>10.100</mn><mrow><mn>100</mn><mo>.</mo><mrow><mo>(</mo><mn>23</mn><mo>+</mo><mn>35</mn><mo>,</mo><mn>5</mn><mo>)</mo></mrow></mrow></mfrac><mo>&#x2062;</mo><mi mathvariant="normal">&#xA0;</mi><mo>=</mo><mo>&#x2062;</mo><mn>0</mn><mo>,</mo><mn>17</mn><mo>&#x2062;</mo><mrow><mo>(</mo><mi>mol</mi><mo>)</mo></mrow><mo>.</mo></math>" id="MathJax-Element-8-Frame" role="presentation" style="border: 0px; box-sizing: border-box; direction: ltr; display: inline-block; float: none; font-size: 21.78px; line-height: 0; margin: 0px; max-height: none; max-width: none; min-height: 0px; min-width: 0px; overflow-wrap: normal; padding: 1px 0px; position: relative; text-align: left; white-space: nowrap; word-spacing: normal;" tabindex="0"><span aria-hidden="true" class="mjx-math" id="MJXc-Node-136" style="border-collapse: separate; border-spacing: 0px; box-sizing: border-box; display: inline-block;"><span class="mjx-mrow" id="MJXc-Node-137" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-msub" id="MJXc-Node-138" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-base" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-mi" id="MJXc-Node-139" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.14em; white-space: pre;">n</span></span></span><span class="mjx-sub" style="box-sizing: content-box !important; display: inline-block; font-size: 15.3985px; padding-right: 0.071em; vertical-align: -0.23em;"><span class="mjx-mi" id="MJXc-Node-140" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.416em; white-space: pre;">NaCl</span></span></span></span><span class="mjx-mo MJXc-space3" id="MJXc-Node-141" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.278em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.094em; white-space: pre;">=</span></span><span class="mjx-mfrac MJXc-space3" id="MJXc-Node-142" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.278em;"><span class="mjx-box MJXc-stacked" style="box-sizing: content-box !important; display: inline-block; height: 0px; padding: 0px 0.12em; position: relative; width: 3.078em;"><span class="mjx-numerator" style="box-sizing: content-box !important; display: block; font-size: 15.3985px; position: absolute; text-align: center; top: -1.515em; width: 4.352em;"><span class="mjx-mrow" id="MJXc-Node-143" style="box-sizing: content-box !important; display: inline-block; text-align: left;"><span class="mjx-mi" id="MJXc-Node-144" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.416em; white-space: pre;">C</span></span><span class="mjx-mo" id="MJXc-Node-145" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.416em; padding-top: 0.461em; white-space: pre;">%</span></span><span class="mjx-mo" id="MJXc-Node-146" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.181em; padding-bottom: 0.324em; white-space: pre;">.</span></span><span class="mjx-msub" id="MJXc-Node-147" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-base" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-mi" id="MJXc-Node-148" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.14em; white-space: pre;">m</span></span></span><span class="mjx-sub" style="box-sizing: content-box !important; display: inline-block; font-size: 10.8867px; padding-right: 0.071em; vertical-align: -0.219em;"><span class="mjx-mi" id="MJXc-Node-149" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.416em; white-space: pre;">dd</span></span></span></span></span></span><span class="mjx-denominator" style="bottom: -0.804em; box-sizing: content-box !important; display: block; font-size: 15.3985px; position: absolute; text-align: center; width: 4.352em;"><span class="mjx-mrow" id="MJXc-Node-150" style="box-sizing: content-box !important; display: inline-block; text-align: left;"><span class="mjx-mn" id="MJXc-Node-151" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.37em; white-space: pre;">100</span></span><span class="mjx-mo" id="MJXc-Node-152" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.416em; padding-top: 0.461em; white-space: pre;">%</span></span><span class="mjx-mo" id="MJXc-Node-153" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.181em; padding-bottom: 0.324em; white-space: pre;">.</span></span><span class="mjx-msub" id="MJXc-Node-154" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-base" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-mi" id="MJXc-Node-155" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.416em; white-space: pre;">M</span></span></span><span class="mjx-sub" style="box-sizing: content-box !important; display: inline-block; font-size: 10.8867px; padding-right: 0.071em; vertical-align: -0.212em;"><span class="mjx-mi" id="MJXc-Node-156" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.324em; white-space: pre;">ct</span></span></span></span></span></span><span class="mjx-line" style="border-bottom: 1.3px solid; box-sizing: content-box !important; display: block; height: 0px; position: absolute; top: -0.28em; width: 3.078em;"></span></span><span class="mjx-vsize" style="box-sizing: content-box !important; display: inline-block; height: 1.64em; vertical-align: -0.568em; width: 0px;"></span></span><span class="mjx-mo" id="MJXc-Node-157" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char" style="box-sizing: content-box !important; display: block; white-space: pre;"></span></span><span class="mjx-mi" id="MJXc-Node-158" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.273em; padding-bottom: 0.324em; white-space: pre;"> </span></span><span class="mjx-mo MJXc-space3" id="MJXc-Node-159" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.278em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.094em; white-space: pre;">=</span></span><span class="mjx-mi MJXc-space3" id="MJXc-Node-160" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.278em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.273em; padding-bottom: 0.324em; white-space: pre;"> </span></span><span class="mjx-mo" id="MJXc-Node-161" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char" style="box-sizing: content-box !important; display: block; white-space: pre;"></span></span><span class="mjx-mfrac" id="MJXc-Node-162" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-box MJXc-stacked" style="box-sizing: content-box !important; display: inline-block; height: 0px; padding: 0px 0.12em; position: relative; width: 4.463em;"><span class="mjx-numerator" style="box-sizing: content-box !important; display: block; font-size: 15.3985px; position: absolute; text-align: center; top: -1.298em; width: 6.312em;"><span class="mjx-mn" id="MJXc-Node-163" style="box-sizing: content-box !important; display: inline-block; text-align: left;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.37em; white-space: pre;">10.100</span></span></span><span class="mjx-denominator" style="bottom: -0.903em; box-sizing: content-box !important; display: block; font-size: 15.3985px; position: absolute; text-align: center; width: 6.312em;"><span class="mjx-mrow" id="MJXc-Node-164" style="box-sizing: content-box !important; display: inline-block; text-align: left;"><span class="mjx-mn" id="MJXc-Node-165" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.37em; white-space: pre;">100</span></span><span class="mjx-mo" id="MJXc-Node-166" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.181em; padding-bottom: 0.324em; white-space: pre;">.</span></span><span class="mjx-mrow" id="MJXc-Node-167" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-mo" id="MJXc-Node-168" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.599em; padding-top: 0.461em; white-space: pre;">(</span></span><span class="mjx-mn" id="MJXc-Node-169" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.37em; white-space: pre;">23</span></span><span class="mjx-mo" id="MJXc-Node-170" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.416em; padding-top: 0.278em; white-space: pre;">+</span></span><span class="mjx-mn" id="MJXc-Node-171" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.37em; white-space: pre;">35</span></span><span class="mjx-mo" id="MJXc-Node-172" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.181em; padding-bottom: 0.553em; white-space: pre;">,</span></span><span class="mjx-mn" id="MJXc-Node-173" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.37em; white-space: pre;">5</span></span><span class="mjx-mo" id="MJXc-Node-174" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.599em; padding-top: 0.461em; white-space: pre;">)</span></span></span></span></span><span class="mjx-line" style="border-bottom: 1.3px solid; box-sizing: content-box !important; display: block; height: 0px; position: absolute; top: -0.28em; width: 4.463em;"></span></span><span class="mjx-vsize" style="box-sizing: content-box !important; display: inline-block; height: 1.556em; vertical-align: -0.639em; width: 0px;"></span></span><span class="mjx-mo" id="MJXc-Node-175" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char" style="box-sizing: content-box !important; display: block; white-space: pre;"></span></span><span class="mjx-mi" id="MJXc-Node-176" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.273em; padding-bottom: 0.324em; white-space: pre;"> </span></span><span class="mjx-mo MJXc-space3" id="MJXc-Node-177" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.278em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.094em; white-space: pre;">=</span></span><span class="mjx-mo MJXc-space3" id="MJXc-Node-178" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.278em;"><span class="mjx-char" style="box-sizing: content-box !important; display: block; white-space: pre;"></span></span><span class="mjx-mn" id="MJXc-Node-179" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.37em; white-space: pre;">0</span></span><span class="mjx-mo" id="MJXc-Node-180" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.181em; padding-bottom: 0.553em; white-space: pre;">,</span></span><span class="mjx-mn MJXc-space1" id="MJXc-Node-181" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.167em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.37em; white-space: pre;">17</span></span><span class="mjx-mo" id="MJXc-Node-182" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char" style="box-sizing: content-box !important; display: block; white-space: pre;"></span></span><span class="mjx-mrow MJXc-space1" id="MJXc-Node-183" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.167em;"><span class="mjx-mo" id="MJXc-Node-184" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.599em; padding-top: 0.461em; white-space: pre;">(</span></span><span class="mjx-mi" id="MJXc-Node-185" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.416em; white-space: pre;">mol</span></span><span class="mjx-mo" id="MJXc-Node-186" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.599em; padding-top: 0.461em; white-space: pre;">)</span></span></span><span class="mjx-mo MJXc-space1" id="MJXc-Node-187" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.167em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.181em; padding-bottom: 0.324em; white-space: pre;">.</span></span></span></span><span class="MJX_Assistive_MathML" role="presentation" style="border: 0px !important; box-sizing: border-box; clip: rect(1px, 1px, 1px, 1px); display: block !important; height: 1px !important; left: 0px; overflow: hidden !important; padding: 1px 0px 0px !important; position: absolute !important; top: 0px; user-select: none; width: 1px !important;"><math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi mathvariant="normal">n</mi><mi>NaCl</mi></msub><mo>=</mo><mfrac><mrow><mi mathvariant="normal">C</mi><mo>%</mo><mo>.</mo><msub><mi mathvariant="normal">m</mi><mi>dd</mi></msub></mrow><mrow><mn>100</mn><mo>%</mo><mo>.</mo><msub><mi mathvariant="normal">M</mi><mi>ct</mi></msub></mrow></mfrac><mo>⁢</mo><mi mathvariant="normal"> </mi><mo>=</mo><mi mathvariant="normal"> </mi><mo>⁢</mo><mfrac><mn>10.100</mn><mrow><mn>100</mn><mo>.</mo><mrow><mo>(</mo><mn>23</mn><mo>+</mo><mn>35</mn><mo>,</mo><mn>5</mn><mo>)</mo></mrow></mrow></mfrac><mo>⁢</mo><mi mathvariant="normal"> </mi><mo>=</mo><mo>⁢</mo><mn>0</mn><mo>,</mo><mn>17</mn><mo>⁢</mo><mrow><mo>(</mo><mi>mol</mi><mo>)</mo></mrow><mo>.</mo></math></span></span></p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">d) <span class="mjx-chtml MathJax_CHTML" data-mathml="<math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi mathvariant="normal">n</mi><mi>KCl</mi></msub><mo>&#x2062;</mo><mi mathvariant="normal">&#xA0;</mi><mo>=</mo><mfrac><mrow><msub><mi mathvariant="normal">V</mi><mi>dd</mi></msub><mo>.</mo><mi mathvariant="normal">D</mi><mo>.</mo><mi mathvariant="normal">C</mi><mo>%</mo></mrow><mrow><mn>100</mn><mo>%</mo><mo>.</mo><mi mathvariant="normal">M</mi></mrow></mfrac><mo>&#x2062;</mo><mi mathvariant="normal">&#xA0;</mi><mo>=</mo><mi mathvariant="normal">&#xA0;</mi><mo>&#x2062;</mo><mfrac><mrow><mn>120.1</mn><mo>,</mo><mn>98.20</mn></mrow><mrow><mn>100.74</mn><mo>,</mo><mn>5</mn></mrow></mfrac><mo>&#x2062;</mo><mi mathvariant="normal">&#xA0;</mi><mo>=</mo><mn>0</mn><mo>,</mo><mn>638</mn><mo>&#x2062;</mo><mrow><mo>(</mo><mi>mol</mi><mo>)</mo></mrow><mo>.</mo></math>" id="MathJax-Element-9-Frame" role="presentation" style="border: 0px; box-sizing: border-box; direction: ltr; display: inline-block; float: none; font-size: 21.78px; line-height: 0; margin: 0px; max-height: none; max-width: none; min-height: 0px; min-width: 0px; overflow-wrap: normal; padding: 1px 0px; position: relative; text-align: left; white-space: nowrap; word-spacing: normal;" tabindex="0"><span aria-hidden="true" class="mjx-math" id="MJXc-Node-188" style="border-collapse: separate; border-spacing: 0px; box-sizing: border-box; display: inline-block;"><span class="mjx-mrow" id="MJXc-Node-189" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-msub" id="MJXc-Node-190" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-base" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-mi" id="MJXc-Node-191" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.14em; white-space: pre;">n</span></span></span><span class="mjx-sub" style="box-sizing: content-box !important; display: inline-block; font-size: 15.3985px; padding-right: 0.071em; vertical-align: -0.23em;"><span class="mjx-mi" id="MJXc-Node-192" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.416em; white-space: pre;">KCl</span></span></span></span><span class="mjx-mo" id="MJXc-Node-193" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char" style="box-sizing: content-box !important; display: block; white-space: pre;"></span></span><span class="mjx-mi" id="MJXc-Node-194" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.273em; padding-bottom: 0.324em; white-space: pre;"> </span></span><span class="mjx-mo MJXc-space3" id="MJXc-Node-195" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.278em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.094em; white-space: pre;">=</span></span><span class="mjx-mfrac MJXc-space3" id="MJXc-Node-196" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.278em;"><span class="mjx-box MJXc-stacked" style="box-sizing: content-box !important; display: inline-block; height: 0px; padding: 0px 0.12em; position: relative; width: 3.286em;"><span class="mjx-numerator" style="box-sizing: content-box !important; display: block; font-size: 15.3985px; position: absolute; text-align: center; top: -1.515em; width: 4.647em;"><span class="mjx-mrow" id="MJXc-Node-197" style="box-sizing: content-box !important; display: inline-block; text-align: left;"><span class="mjx-msub" id="MJXc-Node-198" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-base" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-mi" id="MJXc-Node-199" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.416em; white-space: pre;">V</span></span></span><span class="mjx-sub" style="box-sizing: content-box !important; display: inline-block; font-size: 10.8867px; padding-right: 0.071em; vertical-align: -0.219em;"><span class="mjx-mi" id="MJXc-Node-200" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.416em; white-space: pre;">dd</span></span></span></span><span class="mjx-mo" id="MJXc-Node-201" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.181em; padding-bottom: 0.324em; white-space: pre;">.</span></span><span class="mjx-mi" id="MJXc-Node-202" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.416em; white-space: pre;">D</span></span><span class="mjx-mo" id="MJXc-Node-203" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.181em; padding-bottom: 0.324em; white-space: pre;">.</span></span><span class="mjx-mi" id="MJXc-Node-204" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.416em; white-space: pre;">C</span></span><span class="mjx-mo" id="MJXc-Node-205" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.416em; padding-top: 0.461em; white-space: pre;">%</span></span></span></span><span class="mjx-denominator" style="bottom: -0.709em; box-sizing: content-box !important; display: block; font-size: 15.3985px; position: absolute; text-align: center; width: 4.647em;"><span class="mjx-mrow" id="MJXc-Node-206" style="box-sizing: content-box !important; display: inline-block; text-align: left;"><span class="mjx-mn" id="MJXc-Node-207" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.37em; white-space: pre;">100</span></span><span class="mjx-mo" id="MJXc-Node-208" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.416em; padding-top: 0.461em; white-space: pre;">%</span></span><span class="mjx-mo" id="MJXc-Node-209" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.181em; padding-bottom: 0.324em; white-space: pre;">.</span></span><span class="mjx-mi" id="MJXc-Node-210" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.416em; white-space: pre;">M</span></span></span></span><span class="mjx-line" style="border-bottom: 1.3px solid; box-sizing: content-box !important; display: block; height: 0px; position: absolute; top: -0.28em; width: 3.286em;"></span></span><span class="mjx-vsize" style="box-sizing: content-box !important; display: inline-block; height: 1.573em; vertical-align: -0.501em; width: 0px;"></span></span><span class="mjx-mo" id="MJXc-Node-211" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char" style="box-sizing: content-box !important; display: block; white-space: pre;"></span></span><span class="mjx-mi" id="MJXc-Node-212" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.273em; padding-bottom: 0.324em; white-space: pre;"> </span></span><span class="mjx-mo MJXc-space3" id="MJXc-Node-213" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.278em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.094em; white-space: pre;">=</span></span><span class="mjx-mi MJXc-space3" id="MJXc-Node-214" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.278em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.273em; padding-bottom: 0.324em; white-space: pre;"> </span></span><span class="mjx-mo" id="MJXc-Node-215" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char" style="box-sizing: content-box !important; display: block; white-space: pre;"></span></span><span class="mjx-mfrac" id="MJXc-Node-216" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-box MJXc-stacked" style="box-sizing: content-box !important; display: inline-block; height: 0px; padding: 0px 0.12em; position: relative; width: 3.56em;"><span class="mjx-numerator" style="box-sizing: content-box !important; display: block; font-size: 15.3985px; position: absolute; text-align: center; top: -1.47em; width: 5.034em;"><span class="mjx-mrow" id="MJXc-Node-217" style="box-sizing: content-box !important; display: inline-block; text-align: left;"><span class="mjx-mn" id="MJXc-Node-218" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.37em; white-space: pre;">120.1</span></span><span class="mjx-mo" id="MJXc-Node-219" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.181em; padding-bottom: 0.553em; white-space: pre;">,</span></span><span class="mjx-mn" id="MJXc-Node-220" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.37em; white-space: pre;">98.20</span></span></span></span><span class="mjx-denominator" style="bottom: -0.774em; box-sizing: content-box !important; display: block; font-size: 15.3985px; position: absolute; text-align: center; width: 5.034em;"><span class="mjx-mrow" id="MJXc-Node-221" style="box-sizing: content-box !important; display: inline-block; text-align: left;"><span class="mjx-mn" id="MJXc-Node-222" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.37em; white-space: pre;">100.74</span></span><span class="mjx-mo" id="MJXc-Node-223" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.181em; padding-bottom: 0.553em; white-space: pre;">,</span></span><span class="mjx-mn" id="MJXc-Node-224" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.37em; white-space: pre;">5</span></span></span></span><span class="mjx-line" style="border-bottom: 1.3px solid; box-sizing: content-box !important; display: block; height: 0px; position: absolute; top: -0.28em; width: 3.56em;"></span></span><span class="mjx-vsize" style="box-sizing: content-box !important; display: inline-block; height: 1.587em; vertical-align: -0.547em; width: 0px;"></span></span><span class="mjx-mo" id="MJXc-Node-225" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char" style="box-sizing: content-box !important; display: block; white-space: pre;"></span></span><span class="mjx-mi" id="MJXc-Node-226" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.273em; padding-bottom: 0.324em; white-space: pre;"> </span></span><span class="mjx-mo MJXc-space3" id="MJXc-Node-227" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.278em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.094em; white-space: pre;">=</span></span><span class="mjx-mn MJXc-space3" id="MJXc-Node-228" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.278em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.37em; white-space: pre;">0</span></span><span class="mjx-mo" id="MJXc-Node-229" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.181em; padding-bottom: 0.553em; white-space: pre;">,</span></span><span class="mjx-mn MJXc-space1" id="MJXc-Node-230" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.167em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.37em; white-space: pre;">638</span></span><span class="mjx-mo" id="MJXc-Node-231" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char" style="box-sizing: content-box !important; display: block; white-space: pre;"></span></span><span class="mjx-mrow MJXc-space1" id="MJXc-Node-232" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.167em;"><span class="mjx-mo" id="MJXc-Node-233" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.599em; padding-top: 0.461em; white-space: pre;">(</span></span><span class="mjx-mi" id="MJXc-Node-234" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.416em; white-space: pre;">mol</span></span><span class="mjx-mo" id="MJXc-Node-235" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.599em; padding-top: 0.461em; white-space: pre;">)</span></span></span><span class="mjx-mo MJXc-space1" id="MJXc-Node-236" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.167em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.181em; padding-bottom: 0.324em; white-space: pre;">.</span></span></span></span><span class="MJX_Assistive_MathML" role="presentation" style="border: 0px !important; box-sizing: border-box; clip: rect(1px, 1px, 1px, 1px); display: block !important; height: 1px !important; left: 0px; overflow: hidden !important; padding: 1px 0px 0px !important; position: absolute !important; top: 0px; user-select: none; width: 1px !important;"><math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi mathvariant="normal">n</mi><mi>KCl</mi></msub><mo>⁢</mo><mi mathvariant="normal"> </mi><mo>=</mo><mfrac><mrow><msub><mi mathvariant="normal">V</mi><mi>dd</mi></msub><mo>.</mo><mi mathvariant="normal">D</mi><mo>.</mo><mi mathvariant="normal">C</mi><mo>%</mo></mrow><mrow><mn>100</mn><mo>%</mo><mo>.</mo><mi mathvariant="normal">M</mi></mrow></mfrac><mo>⁢</mo><mi mathvariant="normal"> </mi><mo>=</mo><mi mathvariant="normal"> </mi><mo>⁢</mo><mfrac><mrow><mn>120.1</mn><mo>,</mo><mn>98.20</mn></mrow><mrow><mn>100.74</mn><mo>,</mo><mn>5</mn></mrow></mfrac><mo>⁢</mo><mi mathvariant="normal"> </mi><mo>=</mo><mn>0</mn><mo>,</mo><mn>638</mn><mo>⁢</mo><mrow><mo>(</mo><mi>mol</mi><mo>)</mo></mrow><mo>.</mo></math></span></span></p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;"><span style="box-sizing: border-box; font-weight: 700;">Ví dụ 2:</span> Tính số mol của những lượng chất sau:</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">a) 24,79 lít khí H<span style="bottom: -0.25em; box-sizing: border-box; font-size: 13.5px; line-height: 0; position: relative; vertical-align: baseline;">2 </span>ở điều kiện chuẩn.</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">b) 22,4 lít khí H<span style="bottom: -0.25em; box-sizing: border-box; font-size: 13.5px; line-height: 0; position: relative; vertical-align: baseline;">2</span> ở 1 atm, 0℃ (điều kiện tiêu chuẩn).</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;"><span style="box-sizing: border-box; font-weight: 700;">Hướng dẫn giải</span></p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">a) <span class="mjx-chtml MathJax_CHTML" data-mathml="<math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi mathvariant="normal">n</mi><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub></msub><mo>&#x2062;</mo><mi mathvariant="normal">&#xA0;</mi><mo>=</mo><mi mathvariant="normal">&#xA0;</mi><mo>&#x2062;</mo><mfrac><mrow><mn>24</mn><mo>,</mo><mn>79</mn></mrow><mrow><mn>24</mn><mo>,</mo><mn>79</mn></mrow></mfrac><mo>&#x2062;</mo><mi mathvariant="normal">&#xA0;</mi><mo>=</mo><mn>1</mn><mo>&#x2062;</mo><mrow><mo>(</mo><mi>mol</mi><mo>)</mo></mrow><mo>.</mo></math>" id="MathJax-Element-10-Frame" role="presentation" style="border: 0px; box-sizing: border-box; direction: ltr; display: inline-block; float: none; font-size: 21.78px; line-height: 0; margin: 0px; max-height: none; max-width: none; min-height: 0px; min-width: 0px; overflow-wrap: normal; padding: 1px 0px; position: relative; text-align: left; white-space: nowrap; word-spacing: normal;" tabindex="0"><span aria-hidden="true" class="mjx-math" id="MJXc-Node-237" style="border-collapse: separate; border-spacing: 0px; box-sizing: border-box; display: inline-block;"><span class="mjx-mrow" id="MJXc-Node-238" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-msub" id="MJXc-Node-239" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-base" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-mi" id="MJXc-Node-240" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.14em; white-space: pre;">n</span></span></span><span class="mjx-sub" style="box-sizing: content-box !important; display: inline-block; font-size: 15.3985px; padding-right: 0.071em; vertical-align: -0.212em;"><span class="mjx-msub" id="MJXc-Node-241" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-base" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-mi" id="MJXc-Node-242" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.416em; white-space: pre;">H</span></span></span><span class="mjx-sub" style="box-sizing: content-box !important; display: inline-block; font-size: 10.8867px; padding-right: 0.071em; vertical-align: -0.212em;"><span class="mjx-mn" id="MJXc-Node-243" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.37em; white-space: pre;">2</span></span></span></span></span></span><span class="mjx-mo" id="MJXc-Node-244" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char" style="box-sizing: content-box !important; display: block; white-space: pre;"></span></span><span class="mjx-mi" id="MJXc-Node-245" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.273em; padding-bottom: 0.324em; white-space: pre;"> </span></span><span class="mjx-mo MJXc-space3" id="MJXc-Node-246" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.278em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.094em; white-space: pre;">=</span></span><span class="mjx-mi MJXc-space3" id="MJXc-Node-247" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.278em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.273em; padding-bottom: 0.324em; white-space: pre;"> </span></span><span class="mjx-mo" id="MJXc-Node-248" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char" style="box-sizing: content-box !important; display: block; white-space: pre;"></span></span><span class="mjx-mfrac" id="MJXc-Node-249" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-box MJXc-stacked" style="box-sizing: content-box !important; display: inline-block; height: 0px; padding: 0px 0.12em; position: relative; width: 1.752em;"><span class="mjx-numerator" style="box-sizing: content-box !important; display: block; font-size: 15.3985px; position: absolute; text-align: center; top: -1.481em; width: 2.478em;"><span class="mjx-mrow" id="MJXc-Node-250" style="box-sizing: content-box !important; display: inline-block; text-align: left;"><span class="mjx-mn" id="MJXc-Node-251" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.37em; white-space: pre;">24</span></span><span class="mjx-mo" id="MJXc-Node-252" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.181em; padding-bottom: 0.553em; white-space: pre;">,</span></span><span class="mjx-mn" id="MJXc-Node-253" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.37em; white-space: pre;">79</span></span></span></span><span class="mjx-denominator" style="bottom: -0.774em; box-sizing: content-box !important; display: block; font-size: 15.3985px; position: absolute; text-align: center; width: 2.478em;"><span class="mjx-mrow" id="MJXc-Node-254" style="box-sizing: content-box !important; display: inline-block; text-align: left;"><span class="mjx-mn" id="MJXc-Node-255" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.37em; white-space: pre;">24</span></span><span class="mjx-mo" id="MJXc-Node-256" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.181em; padding-bottom: 0.553em; white-space: pre;">,</span></span><span class="mjx-mn" id="MJXc-Node-257" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.37em; white-space: pre;">79</span></span></span></span><span class="mjx-line" style="border-bottom: 1.3px solid; box-sizing: content-box !important; display: block; height: 0px; position: absolute; top: -0.28em; width: 1.752em;"></span></span><span class="mjx-vsize" style="box-sizing: content-box !important; display: inline-block; height: 1.595em; vertical-align: -0.547em; width: 0px;"></span></span><span class="mjx-mo" id="MJXc-Node-258" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char" style="box-sizing: content-box !important; display: block; white-space: pre;"></span></span><span class="mjx-mi" id="MJXc-Node-259" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.273em; padding-bottom: 0.324em; white-space: pre;"> </span></span><span class="mjx-mo MJXc-space3" id="MJXc-Node-260" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.278em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.094em; white-space: pre;">=</span></span><span class="mjx-mn MJXc-space3" id="MJXc-Node-261" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.278em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.37em; white-space: pre;">1</span></span><span class="mjx-mo" id="MJXc-Node-262" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char" style="box-sizing: content-box !important; display: block; white-space: pre;"></span></span><span class="mjx-mrow MJXc-space1" id="MJXc-Node-263" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.167em;"><span class="mjx-mo" id="MJXc-Node-264" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.599em; padding-top: 0.461em; white-space: pre;">(</span></span><span class="mjx-mi" id="MJXc-Node-265" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.416em; white-space: pre;">mol</span></span><span class="mjx-mo" id="MJXc-Node-266" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.599em; padding-top: 0.461em; white-space: pre;">)</span></span></span><span class="mjx-mo MJXc-space1" id="MJXc-Node-267" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.167em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.181em; padding-bottom: 0.324em; white-space: pre;">.</span></span></span></span><span class="MJX_Assistive_MathML" role="presentation" style="border: 0px !important; box-sizing: border-box; clip: rect(1px, 1px, 1px, 1px); display: block !important; height: 1px !important; left: 0px; overflow: hidden !important; padding: 1px 0px 0px !important; position: absolute !important; top: 0px; user-select: none; width: 1px !important;"><math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi mathvariant="normal">n</mi><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub></msub><mo>⁢</mo><mi mathvariant="normal"> </mi><mo>=</mo><mi mathvariant="normal"> </mi><mo>⁢</mo><mfrac><mrow><mn>24</mn><mo>,</mo><mn>79</mn></mrow><mrow><mn>24</mn><mo>,</mo><mn>79</mn></mrow></mfrac><mo>⁢</mo><mi mathvariant="normal"> </mi><mo>=</mo><mn>1</mn><mo>⁢</mo><mrow><mo>(</mo><mi>mol</mi><mo>)</mo></mrow><mo>.</mo></math></span></span></p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">b) <span class="mjx-chtml MathJax_CHTML" data-mathml="<math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi mathvariant="normal">n</mi><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub></msub><mo>=</mo><mi mathvariant="normal">&#xA0;</mi><mo>&#x2062;</mo><mfrac><mrow><mi mathvariant="normal">P</mi><mo>.</mo><mi mathvariant="normal">V</mi></mrow><mrow><mi mathvariant="normal">R</mi><mo>.</mo><mi mathvariant="normal">T</mi></mrow></mfrac><mo>&#x2062;</mo><mi mathvariant="normal">&#xA0;</mi><mo>=</mo><mo>&#x2062;</mo><mfrac><mrow><mn>1.22</mn><mo>,</mo><mn>4</mn></mrow><mrow><mn>0</mn><mo>,</mo><mn>082.273</mn></mrow></mfrac><mo>&#x2062;</mo><mo>&#x2062;</mo><mi mathvariant="normal">&#xA0;</mi><mo>=</mo><mo>&#x2062;</mo><mi mathvariant="normal">&#xA0;</mi><mo>&#x2062;</mo><mn>1</mn><mo>&#x2062;</mo><mrow><mo>(</mo><mi>mol</mi><mo>)</mo></mrow><mo>.</mo></math>" id="MathJax-Element-11-Frame" role="presentation" style="border: 0px; box-sizing: border-box; direction: ltr; display: inline-block; float: none; font-size: 21.78px; line-height: 0; margin: 0px; max-height: none; max-width: none; min-height: 0px; min-width: 0px; overflow-wrap: normal; padding: 1px 0px; position: relative; text-align: left; white-space: nowrap; word-spacing: normal;" tabindex="0"><span aria-hidden="true" class="mjx-math" id="MJXc-Node-268" style="border-collapse: separate; border-spacing: 0px; box-sizing: border-box; display: inline-block;"><span class="mjx-mrow" id="MJXc-Node-269" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-msub" id="MJXc-Node-270" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-base" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-mi" id="MJXc-Node-271" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.14em; white-space: pre;">n</span></span></span><span class="mjx-sub" style="box-sizing: content-box !important; display: inline-block; font-size: 15.3985px; padding-right: 0.071em; vertical-align: -0.212em;"><span class="mjx-msub" id="MJXc-Node-272" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-base" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-mi" id="MJXc-Node-273" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.416em; white-space: pre;">H</span></span></span><span class="mjx-sub" style="box-sizing: content-box !important; display: inline-block; font-size: 10.8867px; padding-right: 0.071em; vertical-align: -0.212em;"><span class="mjx-mn" id="MJXc-Node-274" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.37em; white-space: pre;">2</span></span></span></span></span></span><span class="mjx-mo MJXc-space3" id="MJXc-Node-275" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.278em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.094em; white-space: pre;">=</span></span><span class="mjx-mi MJXc-space3" id="MJXc-Node-276" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.278em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.273em; padding-bottom: 0.324em; white-space: pre;"> </span></span><span class="mjx-mo" id="MJXc-Node-277" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char" style="box-sizing: content-box !important; display: block; white-space: pre;"></span></span><span class="mjx-mfrac" id="MJXc-Node-278" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-box MJXc-stacked" style="box-sizing: content-box !important; display: inline-block; height: 0px; padding: 0px 0.12em; position: relative; width: 1.369em;"><span class="mjx-numerator" style="box-sizing: content-box !important; display: block; font-size: 15.3985px; position: absolute; text-align: center; top: -1.315em; width: 1.936em;"><span class="mjx-mrow" id="MJXc-Node-279" style="box-sizing: content-box !important; display: inline-block; text-align: left;"><span class="mjx-mi" id="MJXc-Node-280" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.416em; white-space: pre;">P</span></span><span class="mjx-mo" id="MJXc-Node-281" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.181em; padding-bottom: 0.324em; white-space: pre;">.</span></span><span class="mjx-mi" id="MJXc-Node-282" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.416em; white-space: pre;">V</span></span></span></span><span class="mjx-denominator" style="bottom: -0.608em; box-sizing: content-box !important; display: block; font-size: 15.3985px; position: absolute; text-align: center; width: 1.936em;"><span class="mjx-mrow" id="MJXc-Node-283" style="box-sizing: content-box !important; display: inline-block; text-align: left;"><span class="mjx-mi" id="MJXc-Node-284" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.416em; white-space: pre;">R</span></span><span class="mjx-mo" id="MJXc-Node-285" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.181em; padding-bottom: 0.324em; white-space: pre;">.</span></span><span class="mjx-mi" id="MJXc-Node-286" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.37em; white-space: pre;">T</span></span></span></span><span class="mjx-line" style="border-bottom: 1.3px solid; box-sizing: content-box !important; display: block; height: 0px; position: absolute; top: -0.28em; width: 1.369em;"></span></span><span class="mjx-vsize" style="box-sizing: content-box !important; display: inline-block; height: 1.36em; vertical-align: -0.43em; width: 0px;"></span></span><span class="mjx-mo" id="MJXc-Node-287" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char" style="box-sizing: content-box !important; display: block; white-space: pre;"></span></span><span class="mjx-mi" id="MJXc-Node-288" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.273em; padding-bottom: 0.324em; white-space: pre;"> </span></span><span class="mjx-mo MJXc-space3" id="MJXc-Node-289" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.278em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.094em; white-space: pre;">=</span></span><span class="mjx-mo MJXc-space3" id="MJXc-Node-290" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.278em;"><span class="mjx-char" style="box-sizing: content-box !important; display: block; white-space: pre;"></span></span><span class="mjx-mfrac" id="MJXc-Node-291" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-box MJXc-stacked" style="box-sizing: content-box !important; display: inline-block; height: 0px; padding: 0px 0.12em; position: relative; width: 3.009em;"><span class="mjx-numerator" style="box-sizing: content-box !important; display: block; font-size: 15.3985px; position: absolute; text-align: center; top: -1.481em; width: 4.256em;"><span class="mjx-mrow" id="MJXc-Node-292" style="box-sizing: content-box !important; display: inline-block; text-align: left;"><span class="mjx-mn" id="MJXc-Node-293" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.37em; white-space: pre;">1.22</span></span><span class="mjx-mo" id="MJXc-Node-294" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.181em; padding-bottom: 0.553em; white-space: pre;">,</span></span><span class="mjx-mn" id="MJXc-Node-295" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.37em; white-space: pre;">4</span></span></span></span><span class="mjx-denominator" style="bottom: -0.773em; box-sizing: content-box !important; display: block; font-size: 15.3985px; position: absolute; text-align: center; width: 4.256em;"><span class="mjx-mrow" id="MJXc-Node-296" style="box-sizing: content-box !important; display: inline-block; text-align: left;"><span class="mjx-mn" id="MJXc-Node-297" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.37em; white-space: pre;">0</span></span><span class="mjx-mo" id="MJXc-Node-298" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.181em; padding-bottom: 0.553em; white-space: pre;">,</span></span><span class="mjx-mn" id="MJXc-Node-299" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.37em; white-space: pre;">082.273</span></span></span></span><span class="mjx-line" style="border-bottom: 1.3px solid; box-sizing: content-box !important; display: block; height: 0px; position: absolute; top: -0.28em; width: 3.009em;"></span></span><span class="mjx-vsize" style="box-sizing: content-box !important; display: inline-block; height: 1.594em; vertical-align: -0.547em; width: 0px;"></span></span><span class="mjx-mo" id="MJXc-Node-300" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char" style="box-sizing: content-box !important; display: block; white-space: pre;"></span></span><span class="mjx-mo" id="MJXc-Node-301" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char" style="box-sizing: content-box !important; display: block; white-space: pre;"></span></span><span class="mjx-mi" id="MJXc-Node-302" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.273em; padding-bottom: 0.324em; white-space: pre;"> </span></span><span class="mjx-mo MJXc-space3" id="MJXc-Node-303" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.278em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.094em; white-space: pre;">=</span></span><span class="mjx-mo MJXc-space3" id="MJXc-Node-304" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.278em;"><span class="mjx-char" style="box-sizing: content-box !important; display: block; white-space: pre;"></span></span><span class="mjx-mi" id="MJXc-Node-305" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.273em; padding-bottom: 0.324em; white-space: pre;"> </span></span><span class="mjx-mo" id="MJXc-Node-306" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char" style="box-sizing: content-box !important; display: block; white-space: pre;"></span></span><span class="mjx-mn" id="MJXc-Node-307" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.324em; padding-top: 0.37em; white-space: pre;">1</span></span><span class="mjx-mo" id="MJXc-Node-308" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char" style="box-sizing: content-box !important; display: block; white-space: pre;"></span></span><span class="mjx-mrow MJXc-space1" id="MJXc-Node-309" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.167em;"><span class="mjx-mo" id="MJXc-Node-310" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.599em; padding-top: 0.461em; white-space: pre;">(</span></span><span class="mjx-mi" id="MJXc-Node-311" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.37em; padding-top: 0.416em; white-space: pre;">mol</span></span><span class="mjx-mo" id="MJXc-Node-312" style="box-sizing: content-box !important; display: inline-block;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; padding-bottom: 0.599em; padding-top: 0.461em; white-space: pre;">)</span></span></span><span class="mjx-mo MJXc-space1" id="MJXc-Node-313" style="box-sizing: content-box !important; display: inline-block; margin-left: 0.167em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin-top: -0.181em; padding-bottom: 0.324em; white-space: pre;">.</span></span></span></span><span class="MJX_Assistive_MathML" role="presentation" style="border: 0px !important; box-sizing: border-box; clip: rect(1px, 1px, 1px, 1px); display: block !important; height: 1px !important; left: 0px; overflow: hidden !important; padding: 1px 0px 0px !important; position: absolute !important; top: 0px; user-select: none; width: 1px !important;"><math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi mathvariant="normal">n</mi><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub></msub><mo>=</mo><mi mathvariant="normal"> </mi><mo>⁢</mo><mfrac><mrow><mi mathvariant="normal">P</mi><mo>.</mo><mi mathvariant="normal">V</mi></mrow><mrow><mi mathvariant="normal">R</mi><mo>.</mo><mi mathvariant="normal">T</mi></mrow></mfrac><mo>⁢</mo><mi mathvariant="normal"> </mi><mo>=</mo><mo>⁢</mo><mfrac><mrow><mn>1.22</mn><mo>,</mo><mn>4</mn></mrow><mrow><mn>0</mn><mo>,</mo><mn>082.273</mn></mrow></mfrac><mo>⁢</mo><mo>⁢</mo><mi mathvariant="normal"> </mi><mo>=</mo><mo>⁢</mo><mi mathvariant="normal"> </mi><mo>⁢</mo><mn>1</mn><mo>⁢</mo><mrow><mo>(</mo><mi>mol</mi><mo>)</mo></mrow><mo>.</mo></math></span></span>                     </p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;"><span style="box-sizing: border-box; font-weight: 700;">3. Bài tập tự luyện</span></p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;"><span style="box-sizing: border-box; font-weight: 700;">Bài 1:</span> Số mol phân tử N<span style="bottom: -0.25em; box-sizing: border-box; font-size: 13.5px; line-height: 0; position: relative; vertical-align: baseline;">2</span> có trong 280 gam N<span style="bottom: -0.25em; box-sizing: border-box; font-size: 13.5px; line-height: 0; position: relative; vertical-align: baseline;">2</span> là</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">A. 12 mol.</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">B. 11 mol.</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">C. 10 mol.</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">D. 9 mol.</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;"><span style="box-sizing: border-box; font-weight: 700;">Bài 2:</span> Số mol copper(II) sulfate có trong 90 gam dung dịch CuSO<span style="bottom: -0.25em; box-sizing: border-box; font-size: 13.5px; line-height: 0; position: relative; vertical-align: baseline;">4</span> 40% là</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">A. 0,225 mol.</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">B. 0,22 mol.</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">C. 0,25 mol.</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">D. 0,252 mol.</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;"><span style="box-sizing: border-box; font-weight: 700;">Bài 3: </span>Số mol chất tan có trong 400 ml dung dịch NaOH 6M là</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">A. 1,2 mol.</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">B. 2,4 mol.</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">C. 1,5 mol.                  </p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">D. 4 mol.</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;"><span style="box-sizing: border-box; font-weight: 700;">Bài 4: </span>Tính số mol phân tử  có trong 50 gam CaCO₃?</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">A. 1 mol. </p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">B. 0,5 mol.     </p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">C. 1,2 mol.   </p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">D. 1,5 mol.</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;"><span style="box-sizing: border-box; font-weight: 700;">Bài 5: </span>Số mol của 1,2395 lít khí N<span style="bottom: -0.25em; box-sizing: border-box; font-size: 13.5px; line-height: 0; position: relative; vertical-align: baseline;">2</span> ở điều kiện chuẩn là</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">A. 0,04 mol.</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">B. 0,05 mol.</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">C. 0,06 mol.</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify;">D. 0,07 mol.</p><p style="box-sizing: border-box; font-family: "Open Sans", Arial, sans-serif; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: center;"><span style="box-sizing: border-box; font-weight: 700;">Đáp án bài tập tự luyện</span></p><table border="1" class="MsoTableGrid" style="border-collapse: collapse; border-spacing: 0px; color: #313131; font-family: "Open Sans", Arial, sans-serif; font-size: 16px;"><tbody style="box-sizing: border-box;"><tr style="box-sizing: border-box;"><td style="box-sizing: border-box; padding: 0px;" valign="top" width="128"><p style="box-sizing: border-box; color: black; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: center;"><span style="box-sizing: border-box; font-weight: 700;">1</span></p></td><td style="box-sizing: border-box; padding: 0px;" valign="top" width="128"><p style="box-sizing: border-box; color: black; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: center;"><span style="box-sizing: border-box; font-weight: 700;">2</span></p></td><td style="box-sizing: border-box; padding: 0px;" valign="top" width="128"><p style="box-sizing: border-box; color: black; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: center;"><span style="box-sizing: border-box; font-weight: 700;">3</span></p></td><td style="box-sizing: border-box; padding: 0px;" valign="top" width="128"><p style="box-sizing: border-box; color: black; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: center;"><span style="box-sizing: border-box; font-weight: 700;">4</span></p></td><td style="box-sizing: border-box; padding: 0px;" valign="top" width="128"><p style="box-sizing: border-box; color: black; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: center;"><span style="box-sizing: border-box; font-weight: 700;">5</span></p></td></tr><tr style="box-sizing: border-box;"><td style="box-sizing: border-box; padding: 0px;" valign="top" width="128"><p style="box-sizing: border-box; color: black; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: center;"><span style="box-sizing: border-box; font-weight: 700;">C</span></p></td><td style="box-sizing: border-box; padding: 0px;" valign="top" width="128"><p style="box-sizing: border-box; color: black; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: center;"><span style="box-sizing: border-box; font-weight: 700;">A</span></p></td><td style="box-sizing: border-box; padding: 0px;" valign="top" width="128"><p style="box-sizing: border-box; color: black; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: center;"><span style="box-sizing: border-box; font-weight: 700;">B</span></p></td><td style="box-sizing: border-box; padding: 0px;" valign="top" width="128"><p style="box-sizing: border-box; color: black; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: center;"><span style="box-sizing: border-box; font-weight: 700;">B</span></p></td><td style="box-sizing: border-box; padding: 0px;" valign="top" width="128"><p style="box-sizing: border-box; color: black; font-size: 18px; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: center;"><span style="box-sizing: border-box; font-weight: 700;">B</span></p></td></tr></tbody></table>

Công thức tính số mol

  1. Công thức tính số mol - Công thức tính số mol khi biết khối lượng: n   = m M . n ⁢   = ⁢ m M . Trong đó: + m: khối lượng chất (g); + M:...

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