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Free Practice Quiz Question List

5 Solutions and Concentration Online Quiz Questions

Use this free practice quiz with 20 questions to review 5 Solutions and Concentration, test your knowledge, and prepare for your next test or exam.

20 questions
01
True or false
1 point

True or false: In a solution, the components are evenly distributed at the molecular or ionic level.

  1. A

    True

  2. B

    False

02
Choose one
1 point

In a salt-water solution, which statement correctly identifies the solvent and solute?

  1. A

    Sodium chloride is the solvent because it is dissolved in water.

  2. B

    Water is the solvent because it dissolves the sodium chloride.

  3. C

    Both substances are solvents because they form a solution.

  4. D

    Neither substance is a solvent because dissolving is not a chemical reaction.

03
Fill in the blank
1 point

The amount of solute present in a given amount of solution is its .

04
Choose one
1 point

Which expression defines the molarity of a solution?

  1. A

    Liters of solvent divided by moles of solute

  2. B

    Grams of solute divided by liters of solvent

  3. C

    Moles of solute divided by liters of solution

  4. D

    Moles of solvent divided by liters of solution

05
True or false
1 point

True or false: Stirring a solution generally increases the maximum amount of solid solute that can dissolve at equilibrium.

  1. A

    True

  2. B

    False

06
Choose all
1 point

Select all factors that can affect the maximum amount of solute that dissolves at equilibrium.

  1. A

    The identities of the solute and solvent

  2. B

    Temperature

  3. C

    Whether the mixture is stirred

  4. D

    Pressure above a liquid when the solute is a gas

07
Fill in the blank
1 point

At equilibrium under specified conditions, a solution that holds as much dissolved solute as it can is .

08
Choose one
1 point

A sealed soda bottle is opened at constant temperature. Which explanation best accounts for some dissolved carbon dioxide escaping?

  1. A

    Opening the bottle lowers the pressure above the liquid, allowing some dissolved gas to escape.

  2. B

    Opening the bottle raises the pressure above the liquid, forcing more gas to escape.

  3. C

    Opening the bottle changes stirring, which increases the gas solubility.

  4. D

    Opening the bottle makes the liquid saturated by adding more dissolved gas.

09
Written response
1 point

A solution contains 0.50 mol0.50\,\text{mol} of solute in a total solution volume of 2.0 L2.0\,\text{L}. What is its molarity? Give the numerical value in M.

10
Choose all
1 point

Select all statements that correctly describe the usual effect of rising temperature on solubility.

  1. A

    For most solid solutes in water, solubility usually increases as temperature rises.

  2. B

    For all solid solutes in water, solubility always increases as temperature rises.

  3. C

    For gases dissolved in liquids, solubility usually decreases as temperature rises.

  4. D

    For gases dissolved in liquids, solubility always increases as temperature rises.

11
Written response
1 point

What is the term for a solution that contains less dissolved solute than the maximum amount it can hold under specified conditions?

12
Open ended
1 point

Explain the difference between a solvent and a solute, then identify each one in a salt-water solution.

13
Choose one
1 point

Which statement best applies the “like dissolves like” guideline to choosing a solvent?

  1. A

    Polar substances generally dissolve better in nonpolar solvents, and vice versa.

  2. B

    Polar substances tend to dissolve in polar solvents, while nonpolar substances tend to dissolve in nonpolar solvents.

  3. C

    Polarity does not affect whether substances form a uniform solution.

  4. D

    A substance dissolves only if it reacts chemically with its solvent.

14
Written response
1 point

What term describes the maximum concentration of a substance that can dissolve in a particular solvent under specified conditions?

15
Choose one
1 point

In salt water, which component is the solvent?

  1. A

    Water

  2. B

    Sodium chloride

16
Choose one
1 point

Which example is a homogeneous solution?

  1. A

    Salt that has dissolved evenly throughout water

  2. B

    Oil floating in a separate layer above water

  3. C

    Sand that has settled to the bottom of water

  4. D

    Undissolved crystals collected at the bottom of water

17
True or false
1 point

When sugar dissolves in water, a new chemical substance must form.

  1. A

    True

  2. B

    False

18
Written response
1 point

What concentration term describes the mass of solute per volume of solution?

19
Choose one
1 point

A solution is saturated at a specified temperature and pressure. Which statement best describes it at equilibrium?

  1. A

    It contains less dissolved solute than it can hold at equilibrium.

  2. B

    It contains as much dissolved solute as it can hold at equilibrium.

  3. C

    It temporarily contains more dissolved solute than is normally stable.

  4. D

    Any additional solute will dissolve if the solution is left undisturbed.

20
Choose one
1 point

A sealed carbonated drink warms while its pressure stays constant. Based on the usual temperature effect for gases dissolved in liquids, what happens to carbon dioxide solubility?

  1. A

    More carbon dioxide dissolves as the drink warms.

  2. B

    The carbon dioxide solubility remains unchanged as the drink warms.

  3. C

    Less carbon dioxide remains dissolved as the drink warms.

  4. D

    The drink becomes saturated with carbon dioxide at every temperature.