A 7.50 g sample of pyrite (FeS2) contains 3.49 g of iron. What are the percentages of iron and sulfur in pyrite (also known as "Fool's Gold" because of its golden color) ?
A) 57.4% Fe and 42.6% S
B) 66.7% Fe and 33.3% S
C) 33.3% Fe and 66.7% S
D) 46.5% Fe and 53.5% S
E) 53.5% Fe and 46.5% S
Correct Answer:
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