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lethutrang
2 năm trước
Hòa tan hoàn toàn 5,6 gam Fe bằng dung dịch axit HCl. Sau phản ứng thấy có khí thoát ra ở đktc và dung dịch X. a/ Tính khối lượng muối thu được. b/ Tính thể tích khí thoát ra (đktc) c/ Tính nồng độ mol của dung dịch HCl, biết thể tích HCl đã dùng là 200ml.
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