00:02
Hi there.
00:03
In this question, we have a compound that has the formula p4s, which is sulfur, x.
00:11
So we're trying to determine what x is.
00:13
We want the complete chemical formula for this.
00:16
So in other words, we need to know the ratio between p and s.
00:23
So we know it is 4 to x, whatever x is.
00:29
Well, we also know that we have 6 .3 moles of the phosphorus and 9 .40 moles of the sulfur.
00:43
So i want to express this in terms of one to something because it's kind of, it's not very usable here.
00:49
So what i'm going to do, and we can do this anytime we have a ratio.
00:52
Algebra tells us we can do something to one side of the ratio as long as we do the same thing to the other side...