AnswersChemistrySolutions and Solubility

Solutions and Solubility — Quiz Answers

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Under which conditions will sugar most likely dissolve fastest in a cup of water?

A
sugar crystals without stirring at 5 times degree C
B
a sugar cube without stirring at 15 times degree C
C
sugar crystals with stirring at 15 times degree C
D
a sugar cube with stirring at 5 times degree C
24

Which is the second step in the dissolving process?

A
The solute is mixed with the solvent.
B
The solvent molecules surround the solute particles.
C
The solute ions are carried into the solution.
D
The solvent molecules are attracted to solute particles or ions.
25

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

A
low pressure and high temperature
B
low pressure and low temperature
C
high pressure and high temperature
D
high pressure and low temperature
27

Which is true about the dissolving process in water?

A
Solute molecules surround water molecules.
B
Nonpolar solutes dissolve easily in water.
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.
28

A 1-L soda bottle contains dissolved carbon dioxide gas. Which bottle would have the highest concentration of dissolved gas?

A
a bottle that is sealed
B
a bottle that was opened 1 day ago
C
a bottle that was opened 1 minute ago
D
a bottle that was opened 1 hour ago
29

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

A
increasing the temperature
B
decreasing the amount of solute
C
decreasing the surface area
D
increasing the amount of solvent
32

Which method would increase the solubility of a gas?

A
stirring the solvent quickly
B
increasing the temperature
C
decreasing the amount of solvent
D
increasing the pressure
33

Which two solutions have similar solubilities at 40 times degree C ?

A
Ba open paren NO sub 3 close paren sub 2 and Ce sub 2 times open paren SO sub 4 close paren sub 3 times 9 cap h sub 2 cap o
B
Na sub 2 HAsO sub 4 and NaCl
C
Na sub 2 HAsO sub 4 and Na sub 2 SO sub 4
D
Na sub 2 SO sub 4 and NaCl
37

Which method would increase the solubility of a gas?

A
decreasing the amount of solvent
B
stirring the solvent quickly
C
increasing the temperature
D
increasing the pressure
38

A 1-L soda bottle contains dissolved carbon dioxide gas. Which bottle would have the highest concentration of dissolved gas?

A
a bottle that was opened 1 day ago
B
a bottle that is sealed
C
a bottle that was opened 1 minute ago
D
a bottle that was opened 1 hour ago

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