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nguyenngockimchi2506
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1. Dung dịch HCL 25% (D=1,198g/ml). Tính CM a. 7,9M b.6.5M c.8M d.8,2M 2. Muốn pha 400ml dung dịch CuCl2 0,2 M thì khối lượng CuCl2 cần lấy là a. Dung dịch chưa hòa bão b. dung dịch hòa bão c.cả ABC d.dung môi giúp e với ạ hứa vote 5 sâo
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