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hoangthunganxm
2 năm trước
Trộn 100 ml dung dịch H2SO4 1M với 150 ml dung dịch HCl 2M được dung dịch A a) Tìm CM của các ion trong dung dịch A. b) Dung dịch A hòa tan vừa hết 8,3 gam hỗn hợp 2 kim loại gồm Al và Fe tạo dung dịch E. Tính phần trăm về khối lượng của mỗi kim loại. Cô cạn dung dịch E được bao nhiêu gam muối khan
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