1. If 8.78 g of CuNO3 is dissolved in water to make a 0.630 M solution, what is the volume of the solution?
2. How many milliliters of 11.5 M HCl(aq) are needed to prepare 520.0 mL of 1.00 M HCl(aq)?
3. 51.0 mL of a 1.60 M solution is diluted to a total volume of 238 mL. A 119-mL portion of that solution is diluted by adding 113 mL of water. What is the final concentration? Assume the volumes are additive?
4. A 4.56 g sample of a laboratory solution contains 1.38 g of acid. What is the concentration of the solution as a mass percentage?
5. You need to dissolve CaCl2 in water to make a mixture that is 35.0% calcium chloride by mass. If the total mass of the mixture is 994.1 g, what masses of CaCl2 and water should be used?
6. Isopropyl alcohol is mixed with water to produce a solution that is 31.0% alcohol by volume. How many milliliters of each component are present in 905 mL of this solution?