Unit 6: Solutions/Acids & Bases

Multiple Choice

Which point represents a supersaturated solution of the unknown salt?

• Q

• R

• S

• T

Multiple Choice

Based on this graph, which of the following BEST

describes the solubility of these gases?

• All of these gases are more soluble at higher

  temperature.

• All of these gases are more soluble at lower

  temperatures.

• The gases consisting of a single element are

  more soluble at higher temperatures.

• The gases consisting of multiple elements are

  more soluble at lower temperatures.

Multiple Choice

Which BEST describes the solution at point C?

A. saturated

B. desaturated

C. unsaturated

D. supersaturated

• A

• B

• C

• D

Multiple Choice

KCl,

what type of solution is created at 60 degrees

Celsius with 60g/100mL of water?

• Unsaturated

• Saturated

• Supersaturated

• Concentrated

Multiple Choice

How would you increase the conductivity of a solution?

• Increase the concentration of ions in the

  solution.

• Decrease the concentration of ions in the

  solution.

• Increase the temperature of the solution.

• Decrease the temperature of the solution.

Multiple Choice

Kool-Aid is a mixture of flavoring, sugar, and

water. Which substance would be considered the

solvent?

• Flavoring

• Sugar

• Preservatives

• Water

Multiple Choice

Which student's sugar will most likely dissolve the fastest?

• Jennie

• Al

• Adriane

• Marcus

Multiple Choice

Which group most likely dissolved the salt faster?

• group X because they used a larger cylinder

• group X because they used a cup to add the salt

• group Y because they stirred the water

  vigorously

• group Y because they used a wristwatch to

  record time

Multiple Choice

Which of the following statements is false?

A. Bromcresol Purple turns yellow-purple at pH 5.8.

B. Thymol Blue turns orange at pH 2.

C. Phenolphthalein turns light red at pH 8.2.

D. Bromphenol Blue turns green-blue at pH 4.6.

• A

• B

• C

• D

Multiple Choice

Trinity conducted a science experiment using household products. She put a drop of a

substance on a piece of litmus paper and it turned blue. What is the most probable substance that Trinity tested?

A. water

B. orange juice

C. baking soda

D. vinegar

• A

• B

• C

• D

Multiple Choice

Household dish soap is a slightly basic solution. Into which pH range would household dish soap

fall?

A. 0.5 - 2.5

B. 4.0 - 5.5

C. 7.5 - 8.0

D. 12.5 - 13.0

• A

• B

• C

• D

Multiple Choice

Which of the following would help to dissolve a

solute?

A. Heat it up.

B. Stir it.

C. Crush it.

D. All of the above.

• A

• B

• C

• D

Multiple Choice

Which of the following items, when tested by litmus paper, would most likely have a pH of 7?

A. lemon juice

B. distilled water

C. detergent

D. ammonia

• A

• B

• C

• D