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ngothihien12001
2 năm trước
Ôxi hoá hoàn toàn 16,8 gam hỗn hợp gồm hai kim loại X, Y thu được 50,8 gam hỗn hợp Z gồm hai oxit . Hoà tan hoàn toàn Z bằng một lượng vừa đủ dung dịch H2SO4 24,5 % ( d= 1,25 gam/ml). Tính VddH2S04 = ? ................................
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