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Balanced chemical equation

2 H2 + O2 = 2 H2O

2 moles H2 ----------- 1 mole O2
27.4 moles H2 ------ moles O2

moles O2 = 27.4 * 1 / 2

moles O2 = 27.4 / 2 => 13.7 moles

Answer : The number of moles of oxygen gas required are 13.7 moles.

Explanation : Given,

Moles of [tex]H_2[/tex] = 27.4 moles

The given balance chemical reaction is:

[tex]2H_2+O_2\rightarrow 2H_2O[/tex]

From the balanced chemical reaction we conclude that,

As, 2 moles of [tex]H_2[/tex] react with 1 mole of [tex]O_2[/tex]

So, 27.4 moles of [tex]H_2[/tex] react with [tex]\frac{27.4}{2}=13.7[/tex] mole of [tex]O_2[/tex]

Therefore, the number of moles of oxygen gas required are 13.7 moles.

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