How many moles of oxygen (O2) are required to completely react with 27.4 mol of H2?

Question

Chemistry

Amelie Alexander

22 September, 07:05

How many moles of oxygen (O2) are required to completely react with 27.4 mol of H2?

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Answers (1)

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Anderson · Answer 1

This reaction can be written as

H2 + O2 = > H2O.

Then, balanced, as

2H2 + O2 = 2H2O

There we see that we need 2 times more mol of H2 than O2. So mol of O2 is 1/2 mol of H2. That is 27.4 mol / 2 = 13.7 mol.