\(a/2Fe+3Cl_2\xrightarrow[]{}2FeCl_3\\ b/n_{FeCl_3}=\dfrac{32,5}{162,5}=0,2\left(mol\right)\\2 Fe+3Cl_2\xrightarrow[]{}2FeCl_3\\ n_{Fe}=n_{FeCl_3}=0,2mol \\ m_{Fe}=0,2.56=11,2\left(g\right)\\ c/n_{Cl_2}=\dfrac{0,2.3}{2}=0,3\left(mol\right)\\ V_{Cl_2}=0,3.22,4=6,72\left(l\right)\)