Multiple Choice
Which one of the following substances is most likely to dissolve in CCl4?
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6. Chemical Quantities & Aqueous Reactions
Solubility Rules
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How does increasing the amount of sugar in a supersaturated solution affect the likelihood of crystallization occurring?
A
It has no effect on the timing of crystallization.
B
It decreases the likelihood that crystallization will occur.
C
It increases the likelihood that crystallization will occur sooner.
D
It prevents crystallization from occurring entirely.
Verified step by step guidance1
Understand what a supersaturated solution is: it contains more dissolved solute (in this case, sugar) than would normally be possible at a given temperature, making it unstable and prone to crystallization.
Recognize that crystallization occurs when the solution becomes unstable enough for the excess solute to come out of solution and form solid crystals.
Increasing the amount of sugar in a supersaturated solution raises the concentration of solute beyond the saturation point, which increases the driving force for crystallization.
This higher concentration means the solution is more unstable, so the likelihood of sugar molecules coming together to form crystals increases, causing crystallization to occur sooner.
Therefore, adding more sugar to a supersaturated solution does not prevent crystallization; instead, it promotes it by making the solution more prone to forming crystals.
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