Fe2O3+2Al ~2Fe+Al2O3
I presume that you mean 15.0 g ofiron(III) oxide moles Fe2O3 = 15.0 g /159.694 g/mol= 0.0939 theratio between Fe2O3 and Al2O3 is 1 : 1 moles Al2O3 = 0.0939 massAl2O3 = 0.0939 mol x 101.963 g/mol= 9.57 g
