\(n_{Fe}=\dfrac{11.2}{56}=0.2\left(mol\right)\)
\(Fe_2O_3+3H_2\underrightarrow{^{^{t^0}}}2Fe+3H_2O\)
\(0.1.....................0.2\)
\(m_{Fe_2O_3}=0.1\cdot160=16\left(g\right)\)
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