00:01
So in this problem, we are given the molecule c2h6 right here.
00:06
And we're told that we have 0 .334 grams of it, and we want to convert that into molecules.
00:12
We want to see how many molecules are in this 0 .334 grams of c2h6.
00:19
So the first thing we need to do is we need to calculate the molar mass of c2h6.
00:26
And to do this, we are going to look at the molar mass of the individual elements with in c2h6.
00:32
So for carbon, we have a molar mass of about 12, and that's in grams for mole.
00:45
And for hydrogen, we have about one gram per mole.
00:49
So we need to do 12 times two, since we have two atoms of carbon.
00:56
You need to add that to one times six because we have six atoms of hydrogen, and that's going to equal 30...
