00:01
So in this question, it tells you or asks you to find the grams of precipitate that can form when we are mixing two solutions together.
00:16
So when we do something like this, we need to start by remembering that molarity is equal to moles over liters.
00:30
So if we multiply molarity times liters, we can get moles.
00:36
And we also need a balanced equation.
00:39
So this said that it was lead to nitrate.
00:46
So when we crisscross and drop the signs, we get pb.
00:49
N .032.
00:52
This said potassium iodide.
00:54
They each have a positive one and a negative one charge.
00:57
So when we crisscross and drop the signs, we get k -i.
01:00
Now, the reaction that's going to happen is a double.
01:04
Double replacement reaction.
01:06
So the outers will form a product.
01:10
And so will the inners.
01:13
That's how i teach my kids to do that.
01:17
Because this pv had a plus two, it will be pbi2...