Chemistry, 17.06.2021 14:00 emilyturchon
Hòa tan hoàn toàn m gam hỗn hợp X gồm FeO, Fe2O3, Fe3O4 bằng 350 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. Completely dissolve m grams of mixture X including FeO, Fe2O3, Fe3O4 with 350 grams of 14.6% HCl, we get liquor Y. To neutralize the excess acid in Y, 140 ml of 2M KOH solution is required. On the other hand, to completely reduce mg X to metal requires at least V liters of CO. Find the value of V.
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Hòa tan hoàn toàn m gam hỗn hợp X gồm FeO, Fe2O3, Fe3O4 bằng 350 gam dung dịch HCl 14,6% thu được du...
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