00:02
Hi there.
00:03
In this question, we are given a balanced chemical equation for the combustion of ethane, and i've left out the states of matter because those are not important for what we are using the equation for.
00:16
What we want to use from this equation is the mole ratio.
00:20
And the mole ratio comes from the coefficients in this balanced equation.
00:26
So we would interpret it like this.
00:28
For every two moles of ethane that reacts, we need seven moles of oxygen.
00:39
That is going to produce four moles of carbon dioxide and six moles of h2o.
00:49
So this is what these coefficients are telling us.
00:52
They're telling us the ratio in which the reactants react and the products are formed.
00:58
All right.
00:59
Well, let's look at what we're given here in the problem.
01:01
We want to know how many moles of carbon dioxide...