a, Ta có: 160nFe2O3 + 72nFeO = 15,2 (1)
PT: \(Fe_2O_3+3H_2\underrightarrow{t^o}2Fe+3H_2O\)
\(FeO+H_2\underrightarrow{t^o}Fe+H_2O\)
Theo PT: \(n_{Fe}=2n_{Fe_2O_3}+n_{Fe}=\dfrac{11,2}{56}=0,2\left(mol\right)\left(2\right)\)
Từ (1) và (2) \(\Rightarrow\left\{{}\begin{matrix}n_{Fe_2O_3}=0,05\left(mol\right)\\n_{FeO}=0,1\left(mol\right)\end{matrix}\right.\)
\(\Rightarrow\left\{{}\begin{matrix}\%m_{Fe_2O_3}=\dfrac{0,05.160}{15,2}.100\%\approx52,63\%\\\%m_{FeO}\approx47,37\%\end{matrix}\right.\)
b, \(n_{H_2}=3n_{Fe_2O_3}+n_{FeO}=0,25\left(mol\right)\)
\(\Rightarrow V_{H_2}=0,25.24,79=6,1975\left(l\right)\)