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linhalone622
2 năm trước
Hỗn hợp B gồm 2 muối NaX và NaY Cho 5,76g B vào dung dịch br2 dư, phản ứng xong, cô cạn dung dịch thu được 5,29g muối khan Cho 5,76g B vào dung dịch cl2 dư, phản ứng sau 1 thời gian, cô cạn dung dịch thu được 3,955g muối khan trong có 0,03mol Cl- Tìm tên X và Y và % khối lượng mỗi chất trong hỗn hợp ban đầu.
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