00:01
So to solve for this, we know that the hydrocarbon consists of carbon and hydrogen.
00:09
So going to calculate the amount of carbon from the mass of co2 produced and then the amount of hydrogen from the mass of h2 produced and then the amount of hydrogen from the mass of h2o produced from the combustion of the compact.
00:32
Okay, so let's start by calculating the number of hydrogen.
00:34
Of moles of carbon.
00:35
If we have 8 .199, this is grams of co2.
00:40
Let's convert this to moles by dividing the atomic molar mass rather of co2.
00:45
That's 44 .0 .1 is grams.
00:48
Then we have here moles.
00:50
And one mole of co2 will have one mole of carbon.
00:56
Okay.
00:56
So that means we'll cancel this.
00:59
And our final answer will be equivalent to 0 .186.
01:04
Sorry, this is not the final answer, but the number of the number of moles of carbon.
01:12
Then for hydrogen, we have 3 .357 grams of h2o.
01:18
Water is 18 .02 grams per mole.
01:23
This is the molar mass of water and one mole of h2o will have two moles of h2o.
01:29
Okay...