1. Saturated: Unsaturated: Supersaturated:
solutions containing all the dissolved solute possible at given conditions of temperature and pressure
Unsaturated:
solutions containing less dissolved solute than the maximum amount that can be dissolved at given conditions of temperature and pressure
Supersaturated:
unusual solution containing more dissolved solute than is normally possible at given conditions of temperature and pressure
Episode 1002

2. Solubility
A measure of how much solute can dissolve in a given amount of solvent at a specific temperature
Dilute solution:
The amount of solute dissolved is small in relation to the amount of solvent present
Concentrated solution:
The amount of solute dissolved is large in relation to the amount of solvent present
Episode 1002

3. Factors Affecting Solubility
Nature of the solute and solvent
“like dissolves like”
Temperature
Generally, increasing the temperature of the solution increases the solubility of a solid solute
Increasing the temperature of the solution decreases the solubility of a gaseous solute
Episode 1002

4. Pressure
Only affects the solubility of a gaseous solute
Increasing pressure increases solubility
Decreasing pressure decreases solubility
Henry’s Law:
The mass of a gas dissolved in a given volume of liquid is directly proportional to the pressure of the gas
Episode 1002