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trieuvankim
2 năm trước
Dung dịch X gồm NaOH x(M) và Ba(OH)2 y(M). Để trung hòa hoàn toàn 200mL X, bạn Lợi phải cần đến 500 gam dung dịch H2SO4 9,8%, đồng thời thu được 23,3 gam kết tủa. a. Xác định giá trị của x và y. b. Tính khối lượng kết tủa tạo thành khi bạn Lợi cho 100mL X trên tác dụng với dung dịch FeSO4 (dư). Giúp mình với, cảm ơn!!
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