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Module 11: The Chemistry of Solutions
vocabulary
19
Chemistry
12th Grade
10/06/2011

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Term
solute
Definition
The substance being dissolved in order to make a solution. (353)
Term
solvent
Definition
The substance in which the solute is being dissolved in order to make a solution. (353)
Term
solution
Definition
The result of one or more solutes being dissolved in a solvent. (353)
Term
insoluble
Definition
Unable to dissolve. (355)
Term
Solubility
Definition
The maximum amount of solute that can dissolve in a given amount of solvent. (358)
Term
The solubility of any solute depends on what two things?
Definition
  • identity of the solute
  • identity of the solvent

(359)

Term
saturated solution
Definition
A solution in which the maximum amount of solute has been dissolved. (359)
Term
precipitation
Definition
The process by which a solid solute leaves a solution and turns back into its solid phase. (360).
Term
For solid solutes, solubility [increases/decreases] with increasing temperature.
Definition
increases (362)
Term
The solubility of [solid/liquid] solutes is not affected by temperature.
Definition
liquid (362)
Term
The solubility of gases [increases/decreases] with increasing temperature.
Definition
decreases (362)
Term
Increasing pressure [increases/decreases] the solubility of gases.
Definition
increases (362)
Term
Pressure does not affect the solubility of either _______ or _________.
Definition
liquids or solids. (362)
Term
Exothermic process
Definition
A process that releases heat. (364)
Term
Endothermic process
Definition
A process that absorbs heat. (364)
Term
Molality
Definition
The number of molecules of solute per kilogram of solvent. (367)
Term
Freezing-point depression
Definition
When a solute is dissolved in a solvent, the freezing point of the solution will be lower than that of the pure solvent. (370)
Term
_____ is called the freezing-point depression constant.
Definition
Kf (371)
Term
Boiling-point elevation
Definition
When a solute is dissolved in a solvent, the boiling point of the solution will be higher than that of the pure solvent. (374)
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