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Posted by on Tuesday, October 30, 2012 at 10:17am.

480 g of FeS2 is combined with 12.000mol of molecular oxygen. balanced chemical reaction is
4FeS2 + 11O2 ---> 2Fe2O3 + 8SO2
a. Which cheical will run out first?
b. What mass of Fe2O3is produced?

  • chemistry - , Tuesday, October 30, 2012 at 11:24am

    480g FeS2 = 4 moles

    Since 4 moles of FeS2 react with 11 moles of O2, there will be 1 mole of O2 left over.

    2 moles of Fe2O3 will result, or 320g

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