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Solubility Curves (Unit 12) 1.

A solution made by adding 10 grams of KClO3 to 100 grams of water at 20 oC.  Is this solution saturated, unsaturated, or supersaturated?
 a. saturated b. unsaturated c. supersaturated

2.

A solution made by adding 85 grams of NaNO3 to 100 grams of water at 10 oC.  Is this solution saturated, unsaturated, or supersaturated?
 a. saturated b. unsaturated c. supersaturated

3.

A solution made by adding 25 grams of NH4Cl to 50 grams of water at 50 oC.  Is this solution saturated, unsaturated, or supersaturated?
 a. saturated b. unsaturated c. supersaturated

4.

At what temperature will 70 grams of KNO3 dissolved in 100 grams of water form a saturated solution?
 a. 11 oC b. 86 oC c. 136 oC d. 43 oC

5.

How many grams of KCl will dissolve in 100 grams of water at 60 oC?
 a. 28 g b. 45 g c. 55 g d. 39 g

6.

How many grams of Na2SO4 can be dissolved in 100 grams of water at 20 oC?
 a. 54 g b. 44 g c. 62 g d. 41 g

7.

At what temperature will 50 grams of Na2SO4 dissolved in 100 grams of water form a saturated solution?
 a. 45 oC b. 30 oC c. 60 oC d. 50 oC

8.

How many grams of solid precipitate will form if a saturated solution of KNO3 is cooled from 70 oC to 30 oC?
 a. 30 g b. 40 g c. 90 g d. 70 g

9.

If 120 grams of KI are dissolved in 100 grams of water at 20 oC, how many additional grams are needed to saturate the solution?
 a. 143 g b. 23 g c. 120 g d. 35 g

10.

How many grams of HCl can be dissolved in 200 grams of water at 60 oC?
 a. 55 g b. 27.5 g c. 200 g d. 110 g