IPC 9B: Properties of Solutions (Ch. 23)
Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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1.
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When a gas
is dissolved in a liquid, the gas dissolves faster if the liquid is ____. a. | under low
pressure | c. | heated | b. | an electrolyte | d. | cooled | | | | |
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2.
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Which of the
following will speed up the dissolving of a solid solute in water? a. | Grind up the
solvent. | c. | Freeze the
solute. | b. | Cool the solution. | d. | Stir the solution. | | | | |
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3.
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A solution
that contains all of the solute it can hold at a given temperature is ____. a. | diluted | c. | supersaturated | b. | saturated | d. | unsaturated | | | | |
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4.
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A substance
that does NOT conduct an electric current when it forms a solution is a(n) ____. a. | liquid | c. | electrolyte | b. | solid | d. | nonelectrolyte | | | | |
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5.
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Which of the
following combinations would increase the solubility of a gas in a liquid? a. | Increase the pressure
and increase the temperature. | b. | Decrease the pressure and decrease the
temperature. | c. | Increase the pressure and decrease the
temperature. | d. | Decrease the pressure and increase the
temperature. | | |
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6.
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The amount
of solute that can be dissolved in a specific amount of solvent at a given temperature is its
____. a. | concentration | c. | solubility | b. | density | d. | dilution | | | | |
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7.
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Adding more
solute to a solvent ____. a. | does not affect its boiling point | c. | increases its freezing point | b. | decreases its boiling
point | d. | increases its boiling
point | | | | |
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8.
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The
concentration of solution that contains a large amount of solute in the solvent could be described as
____. a. | polar | c. | concentrated | b. | unsaturated | d. | diluted | | | | |
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9.
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A molecule
that is positively charged on one end and negatively charged on the other end is
____. a. | polar | c. | a
hydrocarbon | b. | nonpolar | d. | radioactive | | | | |
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10.
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The oceans
are an example of a(n) ____ solution. a. | gaseous | c. | liquid | b. | solid | d. | alloy | | | | |
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11.
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In a
solution, the substance that is being dissolved is the ____. a. | solute | c. | solvent | b. | gas | d. | liquid | | | | |
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12.
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An alloy is
an example of a ____ solution. a. | dilute | c. | gaseous | b. | solid | d. | liquid | | | | |
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13.
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The process
by which the positive and negative ions of a crystalline solid separate in water is called
____. a. | ionization | c. | solution | b. | saturation | d. | dissociation | | | | |
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14.
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Increasing
the surface area of a solid ____. a. | slows the rate of solution | c. | speeds the rate of solution | b. | has no effect on the
rate of solution | d. | causes the solid to
ionize | | | | |
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