Chemistry, 22.07.2021 15:00 genyjoannerubiera

Câu 9: 100 g dung dịch MgCl2 9.5 % tác dụng đủ với dung dịch KOH 5,6 % .được dung dịch A và chất rắn B. Lọc rắn B và nung đến khối lượng không đổi được chất C. a) Viết pt .Tính khối lượng răn C
b) Tính nồng độ phân trăm của dung dịch A.

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Câu 9: 100 g dung dịch MgCl2 9.5 % tác dụng đủ với dung dịch KOH 5,6 % .được dung dịch A và chất rắn...

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