00:01
So we have a molecule and we would like to find out the mass of one of these molecules.
00:10
So we should add up the atomic masses for each of these individual atoms.
00:15
So we have one carbon atom grams per mole plus six hydrogen atoms.
00:27
We've got five here and one from the hydroxide, six times 1 .0 .0.
00:34
0 .08 grams per mole plus one oxygen atom, which is going to be 15 .99 grams per gram.
00:49
And when we add these all up, we get a total of 34 .058 grams per mole.
01:04
Now to get to the units for mass, which is just gram.
01:10
We want to divide by abagodro's number, which has units of per mole.
01:17
So we have 6 .02 times 10 to the 23 per mole.
01:24
So mole gets canceled out.
01:30
And then we want to convert this to kilograms.
01:38
So we have, we've got in one kilogram, we have 10 to the 3...