In a reaction between iron(II) sulfide and oxygen, iron(III) oxide and
sulfur dioxide are produced. How many moles of Oâ‚‚ is required to
produce 7.66 moles of Feâ‚‚O3?
4FeS + 70â‚‚ + 2Feâ‚‚O3 + 4S02
a 26.81 moles
b 2.17 moles
c 7.60 moles
d None of the above