Question

How many moles of oxygen are needed for the complete combustion of 3 moles of ch4

Answer 1

6 mole of methane reaired

Answer 2

The amount of oxygen gas needed are 6 moles

Explanation:

We are given:

Moles of methane = 3 moles

The chemical equation for the combustion of methane follows:

$CH_4+2O_2\rightarrow CO_2+2H_2O$

By Stoichiometry of the reaction:

1 mole of methane reacts with 2 moles of oxygen

So, 3 moles of methane will react with = $\frac{2}{1}\times 3=6mol$ of oxygen

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