Exam Review 2018: Concentration of Solutions

This is a collection of six EASY chemistry questions dealing with the concentration of solutions, mainly %m, %v, molarity, and molality. A periodic will be useful to compete these questions. Answers are available on twitter @ellencorcino

1.What is the molarity of a solution that contains 10.0 grams of Silver Nitrate that has been dissolved in 750 mL of water?

2. You want to create a 0.25 M Potassium Chloride solution. You mass 5.00 grams of Potassium Chloride. How much water is needed?

3. What is the molality of a solution that contains 48 grams of sodium chloride and 250 mL of water?

4. What is the percentage by mass of the solution from problem 1?

5. How many mL of hydrogen peroxide are needed to make a 8.5% solution by volume of hydrogen peroxide if you want to make 450 mL of solution?

6. What is the molality of a solution that contains 13.4 grams of calcium chloride dissolved in 655 mL of water?

Answers are available on twitter @ellencorcino