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1 October, 21:16

You are asked to make 10 moles of iron (Fe) from iron oxide (fe203) and excess carbon monoxide (CO).

Fe203 (s) + 3CO (g) - - 2Fe (I) + 3CO2 (g)

How many moles of iron oxide must you use?

5 moles

2 moles

10 moles

3 moles

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Answers (1)
  1. 1 October, 21:25
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    5 moles.

    think about the ratio of moles of iron oxide (Fe2O3) and iron (Fe) in that balanced chemical equation, which is 1:2, respectively. if there are 10 moles of Fe, you would divide that by 2 to get the number of moles of Fe2O3.
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