Chemistry Unit 9 Notes Day 2

Multiple Choice

Which of the following statements is true?

• B is a saturated solution

• A is a supersaturated solution

• C is an unsaturated solution

• None of the above

Multiple Choice

When the solution equilibrium point is reached and no more solute will dissolve, the solution is said to be _________.

• unsaturated

• saturated

• supersaturated

Multiple Choice

What do you call a solution that contains less than the maximum amount of solute that is capable of being dissolved?

• unsaturated solution

• saturated solution

• supersaturated solution

• insoluble solution

Multiple Choice

Which of the following best describes a supersaturated solution?

• a solution that contains the maximum amount of solute that is capable of being dissolved

• a solution that contains less than the maximum amount of solute that is capable of being dissolved.

• a solution that contains more than the maximum amount of solute that is capable of being dissolved.

• none of the above

Multiple Choice

Which among the following DOES NOT affect the rate of solubility?

• surface area

• stirring

• temperature

• density

Multiple Choice

As the temperature increases, the rate at which the solute dissolves ____________

• remains the same

• decreases

• also increases

• none of the above

Multiple Choice

At approximately what temperature does the solubility of sodium chloride, NaCl, match the solubility of potassium dichromate, K₂Cr₂O₇?

• 60 ºC

• 30 ºC

• 50 ºC

• 83 ºC

Multiple Choice

How many grams of K₂Cr₂O₇, are soluble in 100 g of water at 95 ºC?

• 83 grams

• 75 grams

• 40 grams

• 12 grams

Multiple Choice

How many grams of K₂Cr₂O₇, are soluble in 100 g of water at 90 ºC?

• 85 grams

• 70 grams

• 40 grams

• 15 grams

Multiple Choice

Which substance is MOST soluble at 0 ºC?

• KI

• NaNO₃

• NaCl

• Ce₂(SO₄)₃

Multiple Choice

Which solute is the most soluble at 10 ⁰C?

• KI

• KClO₃

• NH₄Cl

• NH₃

Multiple Choice

Which solute is the least soluble at 90 ⁰C?

• SO₂

• KClO₃

• KI

• HCl

Multiple Choice

When 20 grams of potassium chlorate, KClO₃, is dissolved in 100 grams of water at 80 ºC, the solution can be correctly described as:

• supersaturated

• saturated

• unsaturated

Multiple Choice

When 20 grams of KNO₃ is dissolved in 100 grams of water at 80 ºC, the solution can be correctly described as:

• supersaturated

• saturated

• unsaturated

Multiple Choice

When 42 grams of potassium chloride, is dissolved in 100 grams of water at 50 ºC, the solution can be correctly described as:

• supersaturated

• saturated

• unsaturated

Multiple Choice

When 50 grams of KCl is dissolved in 100 grams of water at 50 ºC, the solution can be correctly described as:

• supersaturated

• unsaturated

• saturated