00:02
Hi there.
00:03
In this question, we have 293 milliliters of a solution, and we're also given its molarity.
00:11
Well, molarity is moles of solute.
00:14
This is how molarity is defined.
00:15
It's moles of solute per liter of solution.
00:18
So this 0 .145 molar solution means 0 .145 moles of the solute, which is mn and 032, in every liter of the solution.
00:36
Solution.
00:38
Okay, so we have an equality here.
00:40
I've written the molarity as an equality because that's how many moles there are in every liter.
00:45
And we have a volume.
00:47
Our volume is right now in milliliters, but if we could convert that to liters, then we could use the equality between moles and liters to get the number of moles.
00:59
Right, and we do know how to convert from militers to liters because we know that there are 1 ,000 milliliters in a liter.
01:05
So we are ready to set this up and solve it.
01:08
We're going to start with the 293 milliliters...