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20 October, 07:34

Select the correct answer.

The combustion reaction of propane is described by the reaction.

C3H8 + 5O2 → 4H2O + 3CO2.

How many moles of O2 are required to generate 3 moles of CO2?

A.

2.5 moles

B.

3 moles

C.

4 moles

D.

5 moles

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Answers (1)
  1. 20 October, 07:58
    0
    D. 5 moles

    Explanation:

    C3H8 + 5O2 → 4H2O + 3CO2

    5 mol 3 mol

    So, to make 3 mol CO2 5 mol O2 are needed.
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