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		<h1>Dạng bài tập cho biết lượng cả 2 chất tham gia phản ứng</h1>
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			<li>Thứ tư - 23/09/2020 11:02</li>
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			A.Lý thuyết<br />Khi bài toán cho biết lượng cả 2 chất tham gia phản ứng:<br />- Viết PTHH<br />- Tính số mol của 2 chất đã cho<br />- Lập tỉ lệ<br />- Tỉ lệ nào lớn hơn thì chất đó dư, chất kia hết<br />Tính các chất còn lại theo chất hết
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			<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-weight:bold">B. Bài tập</span></span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-weight:bold"><span lang="PT-BR" style="font-weight:normal">Bài 1: Đốt cháy 8,96 lit CO (đktc) trong bình đựng 6,72 lit O<sub>2</sub>(đktc). Sau phản ứng thu được những chất nào? </span><span lang="PL" style="font-weight:normal">Với thể tích là bao nhiêu?</span></span></span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-weight:bold"><span lang="PL" style="font-weight:normal">Giải:</span></span></span></span><br  />
<img alt="" height="106" src="https://khobaitap.com/uploads/news/2020_09/image_79.png" width="328" /><br  />
<img alt="" height="106" src="https://khobaitap.com/uploads/news/2020_09/image_81.png" width="495" /><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-weight:bold"><span style="font-weight:normal">Bài 2: Cho 8,1 g Al vào 58,8 g H<sub>2</sub>SO<sub>4</sub> thu được nhôm sufat và khí hidro.</span></span></span></span>
<ol style="list-style-type:lower-alpha">
	<li><span style="font-size:14pt"><span style="tab-stops:list 36.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-weight:bold"><span lang="PL" style="font-weight:normal">Viết PTHH</span></span></span></span></span></li>
	<li><span style="font-size:14pt"><span style="tab-stops:list 36.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-weight:bold"><span lang="PT-BR" style="font-weight:normal">Chất nào còn dư? Bao nhiêu g?</span></span></span></span></span></li>
	<li><span style="font-size:14pt"><span style="tab-stops:list 36.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-weight:bold"><span lang="PT-BR" style="font-weight:normal">Tính khối lượng của nhôm sunfat và thể tích khí hidro thu được</span></span></span></span></span></li>
</ol>
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-weight:bold"><span lang="PT-BR" style="font-weight:normal">Giải:</span></span></span></span><br  />
<img alt="" height="319" src="https://khobaitap.com/uploads/news/2020_09/image_82.png" width="553" /><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-weight:bold"><span lang="DE" style="font-weight:normal">Bài 3: Đốt cháy 12,4 g P trong bình có chứa 15,68 lit O<sub>2</sub> (đktc)</span></span></span></span>

<ol style="list-style-type:lower-alpha">
	<li><span style="font-size:14pt"><span style="tab-stops:list 36.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-weight:bold"><span lang="PL" style="font-weight:normal">Viết PTHH</span></span></span></span></span></li>
	<li><span style="font-size:14pt"><span style="tab-stops:list 36.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-weight:bold"><span lang="PT-BR" style="font-weight:normal">Chất nào còn dư sau phản ứng? Với khối lượng là bao nhiêu?</span></span></span></span></span></li>
	<li><span style="font-size:14pt"><span style="tab-stops:list 36.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-weight:bold"><span style="font-weight:normal">Tính khối lượng của sản phẩm tạo thành</span></span></span></span></span><img alt="" height="258" src="https://khobaitap.com/uploads/news/2020_09/image_83.png" width="494" /></li>
</ol>
<br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-weight:bold"><span lang="PL" style="font-weight:normal">Bài 4:&nbsp; Đốt cháy 2,3 g Na trong bình có chứa 2,24 lit O<sub>2</sub> (đktc)</span></span></span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-weight:bold"><span lang="PT-BR" style="font-weight:normal">a.Viết PTHH</span></span></span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-weight:bold"><span lang="PT-BR" style="font-weight:normal">b.Chất nào còn dư sau phản ứng? Với khối lượng là bao nhiêu?</span></span></span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-weight:bold"><span lang="PT-BR" style="font-weight:normal">c.Tính khối lượng của sản phẩm tạo thành</span></span></span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-weight:bold">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <span lang="PL" style="font-weight:normal">ĐS: 2,4 g O<sub>2</sub></span></span></span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-weight:bold"><span lang="PL" style="font-weight:normal">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 3,1 gNa<sub>2</sub>O</span></span></span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-weight:bold"><span lang="PL" style="font-weight:normal">Bài 5: Cho 5,4 g Al tác dụng với 29,2 g HCl </span></span></span></span>

<ol style="list-style-type:lower-alpha">
	<li><span style="font-size:14pt"><span style="tab-stops:list 36.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-weight:bold"><span lang="PL" style="font-weight:normal">Viết PTHH</span></span></span></span></span></li>
	<li><span style="font-size:14pt"><span style="tab-stops:list 36.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-weight:bold"><span style="font-weight:normal">Tính khối lượng AlCl<sub>3</sub> tạo thành theo 2 cách</span></span></span></span></span></li>
	<li><span style="font-size:14pt"><span style="tab-stops:list 36.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-weight:bold"><span lang="PT-BR" style="font-weight:normal">Đốt cháy hoàn toàn lượng H<sub>2</sub> trên trong không khí. </span></span></span></span></span></li>
</ol>
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-weight:bold"><span lang="PT-BR" style="font-weight:normal">Tính Vkk cần dùng biết VO<sub>2</sub> = 1/5Vkk</span></span></span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-weight:bold"><span lang="PT-BR" style="font-weight:normal">Bài 6: Cho 4 g Ca tác dụng với dd chứa 3,65 g HCl</span></span></span></span>

<ol style="list-style-type:lower-alpha">
	<li><span style="font-size:14pt"><span style="tab-stops:list 36.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-weight:bold"><span lang="PT-BR" style="font-weight:normal">Chất nào còn dư sau phản ứng? Khối lượng là bao nhiêu?</span></span></span></span></span></li>
	<li><span style="font-size:14pt"><span style="tab-stops:list 36.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-weight:bold"><span lang="PL" style="font-weight:normal">Tính VH<sub>2</sub>(đktc) ?</span></span></span></span></span></li>
	<li><span style="font-size:14pt"><span style="tab-stops:list 36.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-weight:bold"><span lang="PT-BR" style="font-weight:normal">Dẫn toàn bộ H<sub>2</sub> trên qua 8,1 g ZnO nung nóng</span></span></span></span></span></li>
</ol>
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-weight:bold"><span lang="PT-BR" style="font-weight:normal">Tính khối lượng của chất rắn thu được sau phản ứng?</span></span></span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-weight:bold"><span lang="PT-BR" style="font-weight:normal">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ĐS: a. 2 g Ca</span></span></span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-weight:bold"><span lang="PT-BR" style="font-weight:normal">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1,12 lit H<sub>2</sub></span></span></span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-weight:bold"><span lang="PT-BR" style="font-weight:normal">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; m rắn = mZn + mZnO = 7,3 g</span></span></span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-weight:bold"><span lang="PT-BR" style="font-weight:normal">Bài 7: Đốt cháy 13 g Zn trong 4,48 lit O<sub>2</sub> (đktc) thu được kẽm oxit</span></span></span></span>

<ol style="list-style-type:lower-alpha">
	<li><span style="font-size:14pt"><span style="tab-stops:list 36.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-weight:bold"><span lang="PL" style="font-weight:normal">Viết PTHH</span></span></span></span></span></li>
	<li><span style="font-size:14pt"><span style="tab-stops:list 36.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-weight:bold"><span lang="PT-BR" style="font-weight:normal">Chất nào còn dư sau phản ứng? Với khối lượng là bao nhiêu?</span></span></span></span></span></li>
	<li><span style="font-size:14pt"><span style="tab-stops:list 36.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-weight:bold"><span lang="PL" style="font-weight:normal">Tính mZnO theo 2 cách</span></span></span></span></span></li>
	<li><span style="font-size:14pt"><span style="tab-stops:list 36.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-weight:bold"><span lang="PL" style="font-weight:normal">Tính Vkk (đktc) cần dùng cho phản ứng trên biết VO<sub>2</sub> = 1/5Vkk</span></span></span></span></span></li>
</ol>
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-weight:bold"><span lang="PL" style="font-weight:normal">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ĐS: 3,2 g O<sub>2</sub> dư</span></span></span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-weight:bold"><span lang="PL" style="font-weight:normal">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 16,2 g ZnO</span></span></span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-weight:bold"><span lang="PL" style="font-weight:normal">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 11,2 lit kk</span></span></span></span><br  />
&nbsp;
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