Chemistry, 04.08.2021 14:00 zafarm2oxgpmx
Cho 100 ml dung dịch H2 SO4 20% D bằng 1,137 gam trên ml vào 400 gam dung dịch BaCl2 5,2% tạo ra được a gam kết tủa A và dung dịch b Tính khối lượng của kết tủa a và C phần trăm của dung dịch B
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Cho 100 ml dung dịch H2 SO4 20% D bằng 1,137 gam trên ml vào 400 gam dung dịch BaCl2 5,2% tạo ra đượ...
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