# What volume of oxygen gas is needed to completely combust 0.202 L of butane gas?

##### 1 Answer

Feb 16, 2017

#### Answer:

We need a stoichiometric equation:

#### Explanation:

The stoichiometrically balanced equation tells me unequivocally that for each equiv butane, I NEED

So, since gaseous volume is proportional to the number of moles, at given temperature and pressure, we need a volume of dioxygen gas