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		<h1>TÍNH CHẤT HÓA HỌC CỦA KIM LOẠI VÀ PHI KIM</h1>
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			<li>Thứ ba - 10/11/2020 10:19</li>
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			I.Dãy HĐHH của kim loạiK,Na,Mg,Al,Zn,Fe,Pb,H,Cu,Ag,Au* Lưu ý: Khi cho kim loại kiềm vào dd muối:
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			<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif">KL kiềm + H<sub>2</sub>O <span lang="PL" style="font-family:Symbol">®</span> dd bazơ + H<sub>2</sub></span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;Dd bazơ + dd muối <span lang="PL" style="font-family:Symbol">®</span> bazơ mới + muối mới</span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif">HS: 2Na + 2H<sub>2</sub>O <span lang="PL" style="font-family:Symbol">®</span>2 NaOH + H<sub>2</sub></span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp; NaOH + CuSO<sub>4</sub> <span style="font-family:Symbol">®</span> Cu(OH)<sub>2</sub> + Na<sub>2</sub>SO<sub>4</sub></span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif">VD: Cho 11,7 g K tác dụng hết với dd FeCl<sub>3</sub> thu được một chất kết tủa. Lọc lấy chất kết tủa nung trong không khí đến khối lượng không đổi thu được m g chất rắn.</span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif">a, Viết các PTHH xẩy ra</span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif">b, Tính m</span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b><u>II. Tính chất hóa học của kim loại</u></b></span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif">*Lưu ý:</span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif">- Al phản ứng được với dd bazơ</span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif">- Fe + dd HCl, H<sub>2</sub>SO<sub>4</sub> l, muối,S <span style="font-family:Symbol">®</span> Fe(II)</span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif">- Fe + Cl<sub>2</sub>, Br<sub>2</sub> , H<sub>2</sub>SO<sub>4</sub>đ,nóng <span style="font-family:Symbol">®</span> Fe(III)</span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif">- Fe, Al không phản ứng với dd H<sub>2</sub>SO<sub>4</sub>đ,nguội và HNO<sub>3</sub> đ, nguội</span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b><u>III. Các phương pháp điều chế kim loại</u></b></span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b><i>Phương pháp 1</i></b>: Dùng kim loại mạnh đẩy kim loại yếu ra khỏi dd muối( từ Mg trở đi)</span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif">Mg + CuCl<sub>2</sub> <span style="font-family:Symbol">®</span> MgCl<sub>2</sub> + Cu</span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif">  </span></span><img alt="" height="356" src="https://khobaitap.com/uploads/news/2019_05/image_1.png" width="313" /><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Bài 1:</b> Thả một miếng đồng vào 50 ml dd AgNO<sub>3</sub> đến khi phản ứng kết thúc người ta thấy khối lượng miếng đồng tăng thêm 1,52 g so với ban đầu.</span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif">a, Viết PTHH</span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif">b, Tính C<sub>M</sub> dd AgNO<sub>3</sub> đã dùng</span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif">c, Tính C<sub>M</sub> các chất trong dd sau phản ứng</span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif">Giải:</span></span><br  />
<img alt="" height="131" src="https://khobaitap.com/uploads/news/2019_05/image_2.png" width="334" /><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Bài 2</b>: Cho một lá sắt có khối lượng 5 gam vào 50 ml dd CuSO<sub>4</sub> 15% có D = 1,12 g/ml. Sau một thời gian phản ứng người ta lấy lá Fe ra khỏi dd , rửa nhẹ, làm khô cân nặng 5,16 g.</span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif">Tính C% các chất còn lại trong dd sau phản ứng</span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif">Giải:</span></span><br  />
<img alt="" height="225" src="https://khobaitap.com/uploads/news/2019_05/image_3.png" width="498" /><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Bài 3</b>: Hòa tan hoàn toàn 13 g một kim loại (II) bằng dd HCl. Cô cạn dd sau phản ứng thu được 27,2 gam muối khan. Xác định kim loại?</span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif">Giải:</span></span><br  />
<img alt="" height="113" src="https://khobaitap.com/uploads/news/2019_05/image_4.png" width="278" /><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Bài 4</b>: X là nguyên tố phi kim có hóa trị III trong hợp chất với H. Biết % về khối lượng của H trong hợp chất là 17,65 %. Xác định X?</span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif">Giải:</span></span><br  />
<img alt="" height="91" src="https://khobaitap.com/uploads/news/2019_05/image_5.png" width="348" /><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Bài 5</b>: Hòa tan hoàn toàn 1,44 g kim loại (II) bằng 250 ml dd H<sub>2</sub>SO<sub>4</sub> 0,3M. Để trung hòa lượng axit dư cần dùng 60 ml dd NaOH 0,5 M. Xác định kim loại?</span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif">Giải:</span></span><br  />
<img alt="" height="111" src="https://khobaitap.com/uploads/news/2019_05/image_7.png" width="434" /><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Bài 6</b>: Ngâm 16,6 gam hỗn hợp bột các kim loại Al và Fe trong dd HCl dư. Phản ứng xong người ta thu được 11,2 lit H<sub>2</sub> (đktc)</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">Viết các PTHH xẩy ra</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">Tính khối lượng mỗi kim loại trong hỗn hợp đầu</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">Trình bày phương pháp hóa học để lấy riêng được Fe ra khỏi hỗn hợp</span></span></span></li>
</ol>
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif">Hướng dẫn HS giải:</span></span><br  />
<span lang="PL" style="font-size:14.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">PTHH&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">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2Al + 6HCl <span style="font-family:Symbol">®</span> 2AlCl<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">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Fe + 2HCl <span style="font-family:Symbol">®</span> FeCl<sub>2</sub> + H<sub>2</sub></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">Đặt ẩn: - Gọi x là số mol của Al, y là số mol của Fe</span></span></span></li>
</ol>
<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; - Lập phương trình rồi giải</span></span><br  />
<span style="font-size:14pt"><span style="font-family:&#039;Times New Roman&#039;,serif">c. Cho hỗn hợp vào dd NaOH dư, Al tan, lọc lấy chất rắn sấy khô thu được Fe</span></span><br  />
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