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		<h1>PHƯƠNG TRÌNH HÓA HỌC 					MOL VÀ TÍNH TOÁN HÓA HỌC</h1>
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			<li>Thứ tư - 11/11/2020 09:23</li>
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			I. Lập phương trình hóa học<br />Bài 1: PTHH các phản ứng
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			<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif">a.&nbsp; 4P&nbsp; +&nbsp; 5O<sub>2</sub> <span style="font-family:Symbol">®</span> 2P<sub>2</sub>O<sub>5</sub></span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif">b.&nbsp; 4Al + 3O<sub>2</sub> <span style="font-family:Symbol">®</span>&nbsp; 2Al<sub>2</sub>O<sub>3</sub></span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif">c.2Fe(OH)<sub>3</sub>&nbsp; + 3H<sub>2</sub>SO<sub>4</sub> <span style="font-family:Symbol">®</span>Fe<sub>2</sub>(SO<sub>4</sub>)<sub>3</sub> +6H<sub>2</sub>O</span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif">d. 3CO + Fe<sub>2</sub>O<sub>3</sub> <span style="font-family:Symbol">®</span> 2Fe + 3CO<sub>2</sub></span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Bài 2</b>:</span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif">a. Zn<sub>2</sub> + 4O <span style="font-family:Wingdings">à</span>2 ZnO<sub>2</sub>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif">b. 2Mg + O<sub>2</sub> <span style="font-family:Wingdings">à</span>2MgO</span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif">c. Fe + 3Cl <span style="font-family:Wingdings">à</span>FeCl<sub>3</sub>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif">d. Al + 2 AgNO<sub>3</sub> <span style="font-family:Wingdings">à</span>Al( NO<sub>3</sub>)<sub>2</sub> + Ag<sub>2</sub></span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b><u>II. Định luật bảo toàn khối lượng</u></b></span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif">Nội dung: Trong một phản ứng hóa học tổng khối lượng các chất tham gia bằng tổng khối lượng các chất sản phẩm</span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif">Biểu thức:&nbsp; A + B <span style="font-family:Symbol">®</span> C + D</span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; m<sub>A</sub> + m<sub>B </sub>= m<sub>C</sub> + m<sub>D</sub></span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Bài 3</b>:</span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif">a.PTHH</span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp; 2Al + 3H<sub>2</sub>SO<sub>4</sub> <span style="font-family:Symbol">®</span> Al<sub>2</sub>(SO<sub>4</sub>)<sub>3</sub> + 3H<sub>2</sub></span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif">a. áp dụng định luật bảo toàn khối lượng :</span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif">mAl + mH<sub>2</sub>SO<sub>4</sub> = mAl<sub>2</sub>(SO<sub>4</sub>)<sub>3</sub> + mH<sub>2</sub></span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-family:Symbol">®</span> mH<sub>2</sub>SO<sub>4</sub> = 171 + 3-27 = 147 g</span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b><u>III. Mol</u></b></span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b><i>1. Mol là lượng chất chứa 6.10<sup>23</sup> nguyên tử hoặc phân tử chất đó</i></b></span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif">Ví dụ:</span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif">Cứ 1 mol Cu chứa 6.10<sup>23</sup> nguyên tử Cu</span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif">Cứ 1 mol H<sub>2</sub>O chứa 6.10<sup>23</sup> phân tử H<sub>2</sub>O</span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b><i>2. Khối lượng mol</i></b>: <b>M</b></span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif">Là khối lượng tính bằng gam của 6.10<sup>23</sup> nguyên tử hoặc phân tử chất đó</span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif">Ví dụ: MCl<sub>2</sub> = 71g</span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; MCO<sub>2</sub> = 44g</span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; MH<sub>2</sub>O = 18g</span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b><i>3. Thể tích mol chất khí là thể tích chiếm bởi 6.10<sup>23</sup> phân tử chất khí đó</i></b></span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif">ở đktc: 1 mol chất khí có thể tích là 22,4 lit</span></span><br  />
<b><u><span lang="PT-BR" style="font-size:14.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">IV: Công thức chuyển đổi</span></span></u></b><br  />
<img alt="" height="412" src="https://khobaitap.com/uploads/news/2020_11/image_140.png" width="210" /><br  />
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