Question

When CH3NO2 burns in excess oxygen, it forms carbon dioxide, nitrogen dioxide and water. How many moles of oxygen are required to burn 17.10 mole(s) of CH3NO2

Answer 1

Step-by-step explanation:

The given reaction is the combustion of CH3NO2.

The balanced chemical equation of the reaction is:

`4CH_3NO_2+ 7O_2 ->4 CO_2+4NO_2+6H_2O`

So, from the balanced chemical equation, it is clear that:

4 moles of CH3NO2 --- 7 moles of oxygen gas is required.

then,

for 17.10 moles of CH3NO2 the following number of moles of oxygen is required.

`The number of moles of O_2 required=17.10 mol. x (7 mol)/(4 mol) \\=29.925 mol`

Answer is :

29.9 mol of oxygen gas is required.