Gọi \(\left\{{}\begin{matrix}n_{CuO}=x\left(mol\right)\\n_{Fe_2O_3}=y\left(mol\right)\end{matrix}\right.\Rightarrow80x+160y=32\left(1\right)\)
PTHH:
`CuO + 2HCl -> CuCl_2 + H_2O`
`Fe_2O_3 + 6HCl -> 2FeCl_3 + 3H_2O`
Theo PT: \(n_{HCl}=2n_{CuO}+6n_{Fe_2O_3}=0,6.0,2=0,12\left(mol\right)\)
`=> 2x + 6y = 0,12 (2)`
`(1), (2) => x = 1,08; y = -0,34` (Nghiệm âm, xem lại đề)