00:01
To determine whether compounds are soluble or insoluble, you need to take a look at a solubility table and to see whether they're soluble or not.
00:15
And so if we were to start out by looking at silver nitrate, you could look at the rule for nitrates.
00:23
And the rule for nitrates is that all nitrates are soluble, no exceptions.
00:28
So that if you were to put that into water, you're going to start out as a solid, but it's going to break apart completely, and it's going to break apart into the silver ion and the nitrate ion.
00:41
Remember the nitrate is a polyatomic ion, and they're dissolved in water, so we write aq in parentheses next to them to show that they're aqueous.
00:52
Now, if we look at lead to acetate, you can go and look up the rule on acetates, and the rule is all acetates are soluble, no exceptions.
01:05
So we're going to create the lead two ion and two of the acetate ions.
01:16
You can see here there's a two after the acetate.
01:19
So each acetate is now separate.
01:21
So there's two separate ones here.
01:23
And then how did i get the charge of plus two for lead? well, each of the acetates is minus one.
01:30
There's two acetates, so that's a total of negative two charge for the sum of those two.
01:36
So the lead has to cancel the charge out by being plus two...