Chemistry, 27.07.2021 18:50 Starzdaze5572
Hòa tan hoàn toàn 17,6 gam hỗn hợp Cu và Fe trong dung dịch H2SO4 đặc, nóng dư thu được 8,96 lít khí SO2 (đktc và là sản phẩm khử duy nhất). Mặt khác nếu hòa tan hoàn toàn 17,6 gam hỗn hợp trên vào dung dịch H2SO4 loãng dư thì được V lít khí H2 (đktc). Giá trị V là
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Hòa tan hoàn toàn 17,6 gam hỗn hợp Cu và Fe trong dung dịch H2SO4 đặc, nóng dư thu được 8,96 lít khí...
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