00:01
In this problem, you're told you have 125 grams of silver sulfide, and we want to know how much silver you can get from that.
00:11
But in order to find that out, we're going to have to go to moles so that we can relate silver sulfide with silver itself.
00:22
So we start with what we're given, and to find one mole of this, we are going to have to find our molecular weight.
00:34
So for that, we use atomic masses found on the periodic table.
00:39
And we find that silver is 107 .87 grams per mole, whereas sulfur is going to be 32 .1 grams per mole.
00:55
So we know we have two silvers.
00:58
So we'll have 107 .87 times two.
01:03
And added to that, we'll have our 32.
01:06
And this goes us 247 .84 grams per mole.
01:12
So that's what goes here...