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kasper78
2 năm trước
B1 Sục hoàn toàn 3,36 lít khí CO2 (đktc) vào 100ml dung dịch Ca(OH)2, sản phẩm là CaCO3 và H2O. - Tính nồng độ mol của dung dịch Ca(OH)2 đã sử dụng - Tính khối lượng chất rắn thu được sau PƯ B2 Cho 12,9g hỗn hợp gồm 2 kim loại Fe, Cu vào dung dịch H2SO4 loãng dư, người ta thu được 2,24 lít khí. Tính khối lượng mỗi kim loại trong hỗn hợp
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