00:02
All right, so this problem gives us, it's asking us to find the empirical formula, and it says that the compound we're looking at contains sodium, and it's 26 .4 % sodium.
00:15
It is 36 .8 % sulfur, and it also has oxygen.
00:22
So the remainder is going to be oxygen.
00:26
Okay, to find that remainder, we add these two together, and then we subtract that from 100.
00:41
So this comes out as 36 .8.
00:43
Percent oxygen as well.
00:48
Once we know the percentages, we're going to divide each of them by the mass of that element, the atomic weight.
00:57
So for sodium, n .a.
00:59
It's going to be 23.
01:01
For sulfur, it's going to be 32.
01:03
And for oxygen, it's going to be 16...