00:02
Hi there.
00:04
In this question, we are trying to calculate a molar mass.
00:09
And molar mass is the mass of one mole of a substance in grams.
00:26
And we get that from the periodic table.
00:30
The molar mass of each element is found on the periodic table.
00:34
Numerically, it is the same value as the atomic mass.
00:38
So then it just becomes a matter of adding these together.
00:41
And what i mean by that, our compound is m -g -o -h -2.
00:47
So we see that it's composed of magnesium, oxygen, and hydrogen.
00:54
Specifically, there's one magnesium, and that two is outside of the parentheses.
00:59
That means there's two oxygen and two hydrogen.
01:03
So as we look on the periodic table, we see that magnesium has a molar mass of 24 .30 grams per mole...
