An iron ore sample is a mixture of Fe2O3 and several impurities. A 752. g sample of the impure iron ore is heated with excess carbon. Only the Fe2O3 present in the ore reacts with the carbon producing 341. g of carbon monoxide by the following reaction. What is the mass percentage of Fe2O3 in the impure iron ore sample?
Fe2O3 + 3C
→
2Fe + 3CO
a) 57.4%
b) 15.9%
c) 23.9%
d) 64.6%
e) 86.2%