b. Tính nồng độ phần trăm của chất trong dung dịch sau phản ứng.
Câu 5. (1 điểm )
Khử hoàn toàn 1,44g một oxit kim loại bằng khí CO. Lấy toàn bộ kim loại thu được trên cho vào dung
dịch HCl dư thì thu được 448ml khí (đktc). Xác định CTHH của oxit trên.
( Al = 27; Ag = 108; Fe = 56; Mg = 24; Zn = 65; H = 1; Cl = 35,5 )
BÀI LÀM
...................................................................................................................................................................................
...................................................................................................................................................................................
...................................................................................................................................................................................
...................................................................................................................................................................................
...................................................................................................................................................................................
...................................................................................................................................................................................
...................................................................................................................................................................................
...................................................................................................................................................................................
...................................................................................................................................................................................
...................................................................................................................................................................................
...................................................................................................................................................................................
...................................................................................................................................................................................
...................................................................................................................................................................................
...................................................................................................................................................................................
...................................................................................................................................................................................
...................................................................................................................................................................................
...................................................................................................................................................................................
...................................................................................................................................................................................
...................................................................................................................................................................................
...................................................................................................................................................................................
...................................................................................................................................................................................
...................................................................................................................................................................................
...................................................................................................................................................................................
...................................................................................................................................................................................
...................................................................................................................................................................................
...................................................................................................................................................................................
...................................................................................................................................................................................
...................................................................................................................................................................................
...................................................................................................................................................................................
...................................................................................................................................................................................
...................................................................................................................................................................................
...................................................................................................................................................................................
...................................................................................................................................................................................
...................................................................................................................................................................................
...................................................................................................................................................................................
...................................................................................................................................................................................