cau 1:vi chi can 1 luong it nhat HNO3 nen chi tao ra muoi co hoa tri 2luc nay ta co the dat cong thuc chung la: M (gom Fe vaCu), tong mol Fe va Cu = 0.3 mol3M + 8HNO3 -> 3M(NO3)2 + 2NO + 4H2O 0.3 ->0.8 V=0.8/1=0.8(l)cau 2:cau nay nen viet phuong trinh ion 3Cu + 4H^{+} + 2NO3^{-} -> 3Cu^{2+} + 2NO + 2H2Orap so vao coi cai nao ko du thi tinh theo phuong trinh roi ra
cau 1:vi chi can 1 luong it nhat HNO3 nen chi tao ra muoi co hoa tri 2luc nay ta co the dat cong thuc chung la: M (gom Fe vaCu), tong mol Fe va Cu = 0.3 mol3M + 8HNO3 -> 3M(NO3)2 + 2NO + 4H2O 0.3 ->0.8 V=0.8/1=0.8(l)cau 2:cau nay nen viet phuong trinh ion 3Cu + 4H^{+} + 2NO3^{-} -> 3Cu^{2+} + 2NO + 2H2Orap so vao coi cai nao ko du thi tinh theo phuong trinh roi ra cau 3: