00:01
Hi there.
00:02
For this solution that's described, we want to calculate the percent mass to mass for this solution.
00:12
So to do that, we need to take the mass of the solute and divide that by the mass of the solution.
00:27
Remembering that the solution is the solute plus the solvent.
00:33
This is going to give us a decimal number.
00:34
And since we want it to be a percent, we need to multiply by 100 and add the percent sign.
00:39
Okay, so let's go ahead and calculate the percent mass by mass for the solution.
00:48
We're told that we have 15 grams of sodium chloride, so that is our solute, and that is dissolved into 200 grams of water.
01:00
So the total mass of our solution is going to be the mass of the solute plus the mass of the solvent.
01:17
All right, working towards solving this, we're going to add together the two...