Solutions Flashcards
What is the principle that describes the solubility of polar and non-polar solutes?
Like dissolves like
Polar solutes dissolve in polar solvents, while non-polar solutes dissolve in non-polar solvents.
What happens when a solid solute is added to a solvent?
Some solute dissolves, and a stage is reached where dissolution and crystallization occur at the same rate
This leads to a dynamic equilibrium.
What is a saturated solution?
A solution in which no more solute can be dissolved at the same temperature and pressure
It is in dynamic equilibrium with undissolved solute.
What is an unsaturated solution?
A solution in which more solute can be dissolved at the same temperature
It has not reached its maximum solubility.
What is the effect of temperature on the solubility of solids in liquids?
In general, solubility increases with rising temperature if the dissolution process is endothermic and decreases if exothermic
This follows Le Chatelier’s Principle.
Does pressure significantly affect the solubility of solids in liquids?
No, pressure does not have a significant effect
Solids and liquids are highly incompressible.
What sustains aquatic life in water?
Dissolved oxygen
Oxygen dissolves only to a small extent in water.
What is the relationship between pressure and the solubility of gases in liquids?
Solubility of gases in liquids is greatly affected by pressure
Increasing pressure increases the solubility of gases.
Fill in the blank: A solution that is in dynamic equilibrium with undissolved solute is called a ______.
saturated solution
True or False: The concentration of solute in a saturated solution remains constant under given conditions.
True
