\(Fe_2O_3+3CO\rightarrow\left(t^o\right)2Fe+3CO_2\\ n_{CO}=\dfrac{7,437}{24,79}=0,3\left(mol\right)\\ n_{Fe_2O_3}=\dfrac{0,3}{3}=0,1\left(mol\right);n_{Fe}=\dfrac{2}{3}.0,3=0,2\left(mol\right)\\ m_{Fe}=0,2.56=11,2\left(g\right)\\ m_{Fe_2O_3}=0,1.160=16\left(g\right)\)