Chemistry, 26.08.2021 08:20 bxymichelle
Hoà tan hoàn toàn 8,1g kim loại A có hoá trị lll bằng dung dịch H2SO4 98 % . Sau phản ứng thấy sinh ra 10,08 lít khí ở dktc và dung dịch B. a. Xác định kim loại A. b. Tính khối lượng dung dịch H2SO4 đã tham gia phản ứng. c. Xác định nồng độ phần trăm của dung dịch B
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Hoà tan hoàn toàn 8,1g kim loại A có hoá trị lll bằng dung dịch H2SO4 98 % . Sau phản ứng thấy sinh...
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