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Chemistry, 06.12.2021 17:50 kutie543

Bài 5. Hòa tan hoàn toàn 12,1g hỗn hợp bột Cu và ZnO vào 100ml dung dịch HCl 1M. a. Tính thành phần phần trăm theo khối lượng mỗi oxit trong hỗn hợp đầu?
b. Tính khối lượng dung dịch H2SO4 đặc 98% cần để hòa tan hỗn hợp trên?

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