user-avatar
anhhao24
2 năm trước
cần gấp xin cảm ơn Cho dd chứa 24,375g FeCl3 + V l dd NaOH 1M → m gam ↓ . Lọc lấy ↓ đem nung đến khối lượng không đổi thu được a gam chất rắn. Hoà tan hết a gam chất rắn vào dd H2SO4 20% thì thu được dd ( X ): a) Tìm các giá trị V,m,a. b) Tính C% dd ( X ).
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

III/ Cho daïng ñuùng cuûa töø trong ngoaëc: 1. He is one of the best (photograph) ……………….in the worl. 2. Their first public (perform) ………………….was not very successful. 3. The shoes were nice, but they were (comfort) …………….. . 4. Hoa and Nien used to be next door (neighborhood) ………………….. . 5. Surface mail is much (cheap) …………….than airmail. 6. I can’t see him now; it’s not (convenience) ……………………… 7. They are very busy with (celebrate) ………………….. the Teacher’s Day. 8. Nam thinks the food in this restaurant is (taste) ………………… IV/ Gaïch chaân vaø söûa loãi trong nhöõng caâu sau: 1. I’d like sending these postcards to America. ……………………. 2. She is quite different with her mother. …………………………. 3. He isn’t enough strong to carry this suitcase. ………………………… 4. My family has lived here in 1975. ………………………… 5. We have knew each other since we were children. …………………….. 6. Shopping in the mall is more comfort. …………………… 7. They didn’t meet him since last week. ……………………. 8. I’ve been waiting for him since two hours.

2018 © Loga - Không Ngừng Sáng Tạo - Bùng Cháy Đam Mê
Loga Team