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Câu 1.Hòa tan hoàn toàn 16,05 gam sắt (III) hiđroxit cần dùng m gam dung dịch axit sunfuric 7,35%. Giá trị m là A. 300 gam B. 200 gam C. 100 gam D. 50 gam Câu 2.Hòa tan hoàn toàn 7,65gam nhômoxit cần dùng V lít dung dịch axit sunfuric 1,5M. Giá trị của Vlà A. 0,3 lít B. 0,15 lít C. 0,1 lít D. 0,05lít giải thích luôn ạ
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