00:03
Hi there.
00:04
In this question, we have a dilution problem.
00:07
And what that means is we have a stock solution, and we want to make a less concentrated solution from that.
00:14
So we are going to take some of the stock solution and add more solvent to that to make the less concentrated solution.
00:23
So the equation that we use to calculate a dilution problem is m1 v1 equals m2.
00:34
V2, where m is molarity, v is volume, the ones represent the stock solution, and the twos represent a diluted solution.
00:44
Okay, so let's look at this problem, and we see that the stock solution is 1 .119 molar, and we are trying to calculate how much volume of that we need.
01:02
If we want to make a 0 .1227 molar solution, and we want 250 milliliters of that.
01:17
All right.
01:18
Well, looking at this, we have all of our, we have values for all of the variables, but one...