What is the percentage composition of iron in ferric sulphate, given mass of iron is 56 amu?
28%
Chemical formula of Ferric Sulphate - Fe2(SO4)3
The atomic of Fe = 56, S = 32 and O = 16
Molar Mass of the compound =56×2+(16×4+32)×3=400
Percentage composition of Fe
= 56×2400×100 = 28%