3 chemistry assignments due in 48 hours

Name _____________________________________ Date______________ Period ________

Interpreting a Solubility Curve 1) Which salt is the most soluble at

20℃?

2) Which compound is the least soluble at 70℃?

3) Which compound shows the least change in solubility between 0 - 100℃?

4) How many grams of NH4Cl is needed to make a saturated solution at 80℃?

5) How many grams of KClO3 can dissolve at 30℃?

6) If a saturated solution of KClO3 is cooled from 80℃ to 50℃, how much solid will precipitate out of solution?

7) If 98 g of KNO3 is dissolved in 110 g of water at 60℃, is the solution unsaturated, saturated, or supersaturated?

8) If 90 g of NaNO3 is dissolved in 100 g of water at 40℃, is the solution unsaturated, saturated, or supersaturated?

9) If 20 g of KClO3 is dissolved in 100 g of water at 50℃, is the solution unsaturated, saturated, or supersaturated?

10) Which compound decreases in solubility as temperature increases?