Refer to this diagram when answering the review questions.

How many grams of sodium nitrate, NaNO_{3}, are soluble in 100 g of water at 10 ºC?

10 grams

40 grams

80 grams

100 grams

Which salt is LEAST soluble at 50 ºC?

KNO_{3}

Ce_{2}(SO_{4})_{3}

KClO_{3}

K_{2}Cr_{2}O_{7}

Which salt is LEAST soluble at 0 ºC?

KNO_{3}

Ce_{2}(SO_{4})_{3}

KClO_{3}

K_{2}Cr_{2}O_{7}

Which of these salts decreases in solubility as the temperature increases.

KNO_{3}

Ce_{2}(SO_{4})_{3}

KClO_{3}

K_{2}Cr_{2}O_{7}

When 20 grams of potassium chlorate, KClO_{3}, is dissolved in 100 grams of water at 80 ºC, the solution can be correctly described as:

unsaturated

saturated

supersaturated

When 30 grams of potassium nitrate, KNO_{3}, is dissolved in 100 grams of water at 20 ºC, the solution can be correctly described as:

unsaturated

saturated

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:

unsaturated

saturated

supersaturated

A solution of potassium chlorate, KClO_{3}, 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?

10 grams

30 grams

60 grams

80

A beaker containing 80 grams of lead(II) nitrate, Pb(NO_{3})_{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?

20 grams

14 grams

80 grams

66 grams

At approximately what temperature does the solubility of sodium chloride, NaCl, match the solubility of potassium dichromate, K_{2}Cr_{2}O_{7}?

30 ºC

50 ºC

60 ºC

83 ºC

When potassium nitrate, KNO_{3}, is dissolved in water, energy is: