Answers26-27 CFISD TX-Chemistry A CRSolutions and Solubility

Solutions and Solubility Answers

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Which refers to the amount of a solute that will dissolve in a given volume of solvent at a given temperature and pressure?

A
solubility
B
supersaturated
C
dissolution rate
D
concentrated
2
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Which is true about the dissolving process in water?

A
Nonpolar solutes dissolve easily in water.
B
Solute molecules surround water molecules.
C
Molecules or ions of a solute spread throughout the water molecules.
D
Water molecules are repelled by solute ions at the surface of the solute.
3

The concentration of a solute in a solution is greater than the maximum concentration that is predicted from the solute's solubility. What is the best way to describe this solution?

A
diluted
B
saturated
C
unsaturated
D
supersaturated
4

Which method would increase the solubility of a gas?

A
increasing the pressure
B
stirring the solvent quickly
C
increasing the temperature
D
decreasing the amount of solvent
5

Which factor increases the rate of dissolution in an unsaturated solution?

A
increasing the temperature
B
decreasing the surface area
C
decreasing the amount of solute
D
increasing the amount of solvent
6

Under which conditions would the solubility of a gas be greatest?

A
high pressure and high temperature
B
high pressure and low temperature
C
low pressure and high temperature
D
low pressure and low temperature
7

Which is the second step in the dissolving process?

A
The solute is mixed with the solvent.
B
The solute ions are carried into the solution.
C
The solvent molecules surround the solute particles.
D
The solvent molecules are attracted to solute particles or ions.
8

Which is true about dissolving a polar substance in water?

A
The solvent particles are all nonpolar molecules.
B
The solute particles are carried into the solution.
C
The solute particles have no attraction for the solvent molecules.
D
The solute particles are very different from the solvent molecules.
9

Solute crystals are added to a solution until they begin to sink to the bottom of their container. The solution is then heated, and many more solute crystals dissolve. Which term best describes the solution immediately after it was heated?

A
saturated
B
unsaturated
C
concentrated
D
supersaturated
10

A beaker contains a solution. A single solute crystal is added to the solution. Immediately, crystals form in the solution. Which term best describes the solution before the crystal was added?

A
supersaturated
B
unsaturated
C
diluted
D
saturated

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