00:03
Hi there, in this question we are given the volume of solution and that is given to us in liters.
00:09
And what we're trying to get to is the mass of solute, which is calcium chloride, in that solution.
00:17
And mass is of course in grams.
00:21
So we want to know grams.
00:24
Alright, well we can't go directly from volume to mass, but what we can do is go through the mole to get there.
00:32
Because we can convert from volume to mole by using molarity.
00:40
We're given the molarity in this problem.
00:42
We are told that there's 0 .200 moles of that solute in every liter of solution.
00:52
So we can use that to convert from liters to moles.
00:56
Then we can convert from moles to mass by using the molar mass.
01:00
The molar mass is the mass of one mole of a substance in grams.
01:05
And in this question the molar mass is given to us.
01:07
We are told that in one mole of calcium chloride there are 110 .98 grams.
01:25
Alright, so using these two equalities in this plan we can do our conversion.
01:30
Let's go ahead and set this up using dimensional analysis and solve for our answer...