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Chemistry, 18.06.2021 17:10 jaleelbrown80

Hòa tan hoàn toàn am gam hỗn hợp X gồm FeO, Fe2O3, Fe3O4 bằng 30 gam dung dịch HCl 14,6% thu được dung dịch Y. Để trung hòa lượng axit dư trong Y cần dùng 140 ml dung dịch KOH 2M. Mặt khác, để khử hoàn toàn m gam X thành kim loại cần tối thiểu V lít khí CO. Tìm giá trị của V.

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Hòa tan hoàn toàn am gam hỗn hợp X gồm FeO, Fe2O3, Fe3O4 bằng 30 gam dung dịch HCl 14,6% thu được du...
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