00:01
So we want the percent of each of the three elements, which we need the mass of each, divided by the total mass.
00:10
So the total mass is going to be 14 times the mass of carbon, which is 12 .011, plus 10 times the mass of hydrogen, which is 1 .00, plus four times the mass of oxidin, which is 16 .00, which comes out to 14 times 12 .011.
00:37
We'll do it, you know, multiply all these out first and then get the answer, and you'll see why.
00:45
So 168 .154, and then 10 times 1 .008 is 10 .08 is 10 .08.
01:03
And this is 64, comes out to 242 .23.
01:16
We'll round to two decimals.
01:18
So now we know this corresponds to the total mass of carbon.
01:22
This is the total mass of hydrogen, and that's the total mass of oxygen.
01:25
So if we take the mass of each divided by the total mass, we'll get the percent composition...