is empirical formula of a crystalline compound of iron. It is used in water and sewage treatment to aid in the removal of suspended impurities. Calculate the mass percentage of iron, sulphur and oxygen in this compound.

is empirical formula of a crystalline compound of iron. It is used in

1.	is empirical formula of a crystalline compound of iron. It is used in water and sewage treatment to aid in the removal of suspended impurities. Calculate the mass percentage of iron, sulphur and oxygen in this compound.
Answer» ar mass of Fe2(SO4)3= 2X56+3(32+4X16) =400 g/mole Mass of oxygen = 3(4X16) = 192 % of Oxygen = Mass of Oxygen/Molecular mass of Fe2(SO4)3 X 100 = 192/400 X 100 = 48% (Answer)Element Symbol ATOMIC Mass # of Atoms Mass PercentIronFe55.845136.762%OxygenO15.9994442.129%SulfurS32.065121.108%