 Okay, so let's start this one now. A solution was prepared by dissolving 12.4 grams of sodium nitrate in water to produce 95 mils of solution. What is the late volume percentage of this solution? Okay, so the mass of the solute in this case is sodium nitrate. It's going to be 12.4 grams and then the volume of the solution. That's convenient because weight volume is in grams per milliliter so weight volume percentage. So we know that weight volume percent the mass of the solute, the volume of the solution to get this problem is deployed numbers in it. Okay, so the mass of the solute, the volume of the solution is 95.0 mil percent. Keep the calculator out. We've got 12.4 divided by 95. And we've got 1, 2, 3 6 bits, so it's going to be 13.1 of sodium nitrate.