Solubility Diagram

How many grams of sodium nitrate, NaNO₃, are soluble in 100 g of water at 10 ºC?
1. 10 grams
2. 40 grams
3. 80 grams
4. 100 grams
Which salt is LEAST soluble at 50 ºC?
1. KNO₃
2. Ce₂(SO₄)₃
3. KClO₃
4. K₂Cr₂O₇
Which salt is LEAST soluble at 0 ºC?
1. KNO₃
2. Ce₂(SO₄)₃
3. KClO₃
4. K₂Cr₂O₇
Which of these salts decreases in solubility as the temperature increases.
1. KNO₃
2. Ce₂(SO₄)₃
3. KClO₃
4. K₂Cr₂O₇
When 20 grams of potassium chlorate, KClO₃, is dissolved in 100 grams of water at 80 ºC, the solution can be correctly described as:
1. unsaturated
2. saturated
3. supersaturated
When 30 grams of potassium nitrate, KNO₃, is dissolved in 100 grams of water at 20 ºC, the solution can be correctly described as:
1. unsaturated
2. saturated
3. supersaturated
When 50 grams of potassium chloride, KCl, is dissolved in 100 grams of water at 50 ºC, the solution can be correctly described as:
1. unsaturated
2. saturated
3. supersaturated
A solution of potassium chlorate, KClO₃, has 20 grams of the salt dissolved in 100 grams of water at 70 ºC. Approximately how many more grams of the salt can be added to the solution before reaching the saturation point?
1. 10 grams
2. 30 grams
3. 60 grams
4. 80
A beaker containing 80 grams of lead(II) nitrate, Pb(NO₃)₂, in 100 grams of water has a temperature of 30 ºC. Approximately how many grams of the salt are undissolved, on the bottom of the beaker?
1. 20 grams
2. 14 grams
3. 80 grams
4. 66 grams
At approximately what temperature does the solubility of sodium chloride, NaCl, match the solubility of potassium dichromate, K₂Cr₂O₇?
1. 30 ºC
2. 50 ºC
3. 60 ºC
4. 83 ºC
When potassium nitrate, KNO₃, is dissolved in water, energy is:
1. created
2. destroyed
3. released
4. absorbed
When cerium sulfate, Ce₂(SO₄)₃, is dissolved in water, energy is:
1. created
2. destroyed
3. released
4. absorbed

Solubility Diagram

Multiple-choice exercise

Refer to this diagram when answering the review questions.