Hòa tan 8,1 (g) ZnO3 trong 580 ml dung dịch H2SO4 4M a. Xác định chất dư và khối lượng chất dư sau phản ứng b. Tính khối lượng muối tạo thành c. Tính nồng độ mol của các chất trong dung dịch sau phản ứng ( giả sử thể tích khí không đổi)

Các câu hỏi liên quan

1 Jane said to Bill, “When do you expect to finish your assignment?" ......................................................................................................................................... 2 The man said to the boy: "Can you show me the way to the bank?" ......................................................................................................................................... 3 Fred asked the postman: "Are there any letters for me today?" ......................................................................................................................................... 4 Henry said to the librarian, "How many books can I borrow at a time?" ......................................................................................................................................... 5 John asked his friend, "How did you manage to know my phone number?" ......................................................................................................................................... 6 “These old buildings might have already disappeared by the time I am back next year?" he said ......................................................................................................................................... 7 The boys said to the old woman: "What can we do to help you?" ......................................................................................................................................... 8 The guests said to the doorman: "Where should we leave our coats?" ......................................................................................................................................... 9 Tom asked his brother: "Why did you advise them to go sight-seeing on foot?" ......................................................................................................................................... 10 I asked the children: "Who took away the magazines from my desk?" .........................................................................................................................................