Solubility Answers

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Four solutes are added to a solvent. All solutes have the same mass and solubility. The surface areas of four solutes are 2 mm2, 4 mm2, 6 mm2, and 10 mm2. Which solute will dissolve the quickest?

A
2 mm2
B
4 mm2
C
6 mm2
D
10 mm2
2
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Naomi has increased the pressure on a solution of liquid and gas in a closed container. What will this do to the gas in her solution?

A
increase the amount
B
decrease the amount
C
increase the temperature
D
decrease the temperature
3

Oil and water placed in a jar will separate. Even when shaken and mixed, the oil still separates from the water.

A
Oil and water are highly soluble because they have separate chemical properties.
B
Oil and water have a low solubility because they have separate chemical properties.
C
Oil and water are highly soluble because they exert different pressures.
D
Oil and water have a low solubility because they exert different pressures.
4

Maceo is making rock candy. Which best describes the steps she should take?

A
heat a saturated sugar water solution, dissolve more sugar, then let the solution cool
B
heat a saturated sugar water solution, dissolve more sugar, and wait until the water evaporates
C
saturate a water solution, increase the pressure, and dissolve more sugar
D
saturate a water solution, lower the pressure, and dissolve more sugar
5

The chart shows the amount of solute that fully dissolved when added to 500 ml of water.

Question illustration
A
X → Y → Z
B
Y → X → Z
C
Z → X → Y
D
Y → Z → X
6

A substance is boiled repeatedly and stirred, but the solute never mixes with the solvent. Which best describes why?

A
The temperature was not high enough to mix the solute and solvent.
B
The chemical properties of the solute and solvent are different.
C
The pressure was increased.
D
The solution was saturated.
7

How does temperature affect the speed with which the solute dissolves?

A
Higher temperature increases the speed of solubility.
B
Lower temperature increases the speed of solubility.
C
A constant temperature increases the speed of solubility.
D
A variable temperature increases the speed of solubility.
8

Three students are mixing the same type of solute in 500 ml of water. Jessica is heating her solution, Larry left his on the counter at room temperature, and Hunter is heating his solution while stirring it.

A
Larry → Jessica → Hunter
B
Hunter → Jessica → Larry
C
Jessica → Hunter → Larry
D
Hunter → Larry → Jessica
9

The solute will dissolve quicker if the solute is more

A
shaken.
B
saturated.
C
cooled.
D
settled.
10

The chart shows the solubility of different substances.

Question illustration
A
Temperature can change the solubility of a solute.
B
Temperature has no affect on the solubility of a solute.
C
Salt has a greater solubility than sugar.
D
Nitrite salt has a greater solubility than sugar.

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Solubility Answers — HS Physical Science A - CR…