1. How does the number of moles of solute before a dilution compare with the number of moles of solute after the dilution?

2. What are two ways of expressing
the concentration of a solution as a percent?

3. What is the molarity of a solution
containing 400 g CuSO4 in 4.00 L of solution?

4. How many milliliters of a stock solu-tion of 2.00M KNO3 would you need to prepare 100.0 mL of 0.150M KNO3?

An aqueous solution of hydroiodic acid is standardized by titration with a 0.186 m solution of calcium hydroxide. if 26.5 ml of base are required to neutralize 20.3 ml of the acid, what is the molarity of the hydroiodic acid solution? m hydroiodic acid

Asolution is made by dissolving 25.5 grams of glucose (c6h12o6) in 398 grams of water. what is the freezing point depression of the solvent if the freezing point constant is -1.86 °c/m? show all of the work needed to solve this problem.

Select the correct text in the passage. which sentences describe examples of sustainable living? i live in an old apartment building downtown, but my company is based in an office park on the outskirts of the city. i drive an old car that needs to be replaced. i plan to buy a hybrid for better gas mileage, but for now i am able to carpool with a couple of friends from work. the drive to the office park is about 45 minutes each way, but we do get to work in a modern building. the architects just received a leed certification for the design.