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tranthingocquyen593
2 năm trước
Hòa tan hoàn toàn 1,5 gam hỗn hợp gồm Al và Mg trong dung dịch HC1 7,3% (D= 1,2 g/ml), thu được 1,68 lít khí B thoát ra ở đktc. a) Tính thành phần % khối lượng mỗi chất trong hỗn hợp. b) Tính thế tích dung dịch HCl cần dùng. c) Tống hợp khí B với 1,12 lít Clo( đktc). Tính số mol của mỗi khí sau phản ứng biết hiệu suất phản ứng đạt 90%. Giúp em bài Mg, Al tác dụng với HCl này với mọi người ơi.
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