1. What is the solubility of sodium nitrate at 40 C?

2. What is the solubility of potassium chloride at 70 C?

3. What happens to the solubility of potassium chloride as the water temperature increases?

4. If you have 40 grams of potassium nitrate in 100 grams of water at 20 C:

a. How many grams of potassium nitrate will dissolve?

b. How many grams of potassium nitrate will fall to the bottom of the container?

c. At this temperature, 20 C, is this solution saturated, unsaturated or supersaturated? EXPLAIN.

d. At what temperature will the amount of potassium nitrate that fell to the bottom will also dissolve?

e. If this solution was heated to 90 C, would the solution be saturated, unsaturated or supersaturated? EXPLAIN.

5. What happens to the solubility of cesium sulfate gas as the temperature of the water is increased?

6. Carbon Dioxide (CO2) is a gas that is present in carbonated beverages (sodas). The solubility of carbon dioxide has the same shape as the gas in the graph (question 5). Its solubility, however, is too low to appear on the graph. Why do you think it is unwise to open a warm bottle of soda? Make sure you answer in complete sentences and explain when asked.