CHEMISTRY - Calculating Copper Yield from Bornite Ore

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To calculate the copper yield from 2.5 kg of bornite (Cu3FeS3) with a 60% yield, first determine the moles of bornite, which is approximately 7.3 moles. The balanced chemical equation indicates that 2 moles of bornite produce 6 moles of copper. Therefore, the theoretical yield of copper from 7.3 moles of bornite is about 21.9 moles of copper. Considering the 60% yield, the actual amount of copper collected would be around 13.14 moles. This calculation provides a clear method for determining copper yield from bornite ore.
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Homework Statement



3) Bornite, Cu3FeS3, is an ore used in the production of copper. If 2.5kg of bornite produced a 60% yield, how much copper was collected?


2 Cu3FeS3(s) + 7 O2(g) ---> 6 Cu(s) + 2 FeO(s) + 6SO2(g)





The Attempt at a Solution



So first I calculated the moles of Cu3Fes3 and got about 7.3 moles. Then I am not sure what to do. Any suggestions?
 
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Does no one hold the knowledge to answer my question?
 
So, how many moles of copper SHOULD be produced?

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