An iron ore is known to contain 70% Fe2O3. The mass of iron metal which can be theoritically obtained from 80kg of the ore is what
we have: 100 garms iron ore : has 100*70% 70 garms Fe2O3 80 kg 80 000 garms has .x so theoretically , the mass of Fe2O3 obtained from 80kg of the ore is : x 80 000 * 70 / 100 56 000 garms 56 kg Answer : 56 kg
