00:02
Hello, in this question we are given the molarity of our sodium chloride solution.
00:06
We are told that it's 0 .0462 molar.
00:14
Well, molarity means moles of solute per liter of solution.
00:20
Therefore, we have 0 .0462 moles of the solute nacl in every liter of solution.
00:30
So we can write this as an equality.
00:34
For every liter that we have, we're going to have this many moles.
00:39
Well, in this question we don't have exactly a liter.
00:42
What we have is 1 .55 liters.
00:45
We can use our equality as a conversion factor to determine our number of moles.
00:51
So looking at our equality, i want liters to cancel.
00:57
So the one liter needs to go in the denominator, while the 0 .0462 moles of nacl goes in the numerator...