[hóa 10] halogen

S

sandy_15

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S

sayhi

cho 9,14 g hon hop gom Mg,Al,Cu bang dung dich HCl du thu duoc 7,84 lit khi(dktc) dung dich X va 2,54 gam chat ran Y.khoi luong muoi trong x la?

Cu ko tan => m Y =m Cu => m Al,Mg =9,14 -2,54 =6,6 g
$2Al +6HCl ->2AlCl_3 + 3H_2$
a....................................1,5a
$Mg +2HCl ->MgCl_2 +H_2$
b.................................b
=>27a+24 b =6,6
1,5a+b=0,35
Tự làm tiếp nhé:D
 
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