Solution and Rate of Solubility

5.2

Solution and Rate of Solubility

Solute - is a substance that can dissolve in a liquid

Solvent - is a liquid that dissolves a substance

Solution - is the mixture formed when a solute dissolves in a solvent

Dilute, Concentrated and Saturated Solution

Dilute Solution

* Less amount of solute in the solvent

* Can dissolve more solute

Concentrated Solution

* More amount of solute in the solvent

* Can dissolve less solute

Saturated Solution

* Excess amount of solute in the solvent

* Cannot dissolve any more solute and form precipitate

Solution and Suspension

What is solution and suspension?

Solution is a clear mixture formed when a solute dissolves in a solvent
Suspension is a cloudy mixture formed from undissolved solute particles in a solvent

Solubility

Solubility of a solute is the maximum amount of the solute that can dissolve in 100 ml of solvent a specific temperature

Rate of solubility

The higher the temperature of solvent, the higher the rate of solubility
The higher the rate of stirring, the higher the rate of solubility

Colloid

A colloid is a mixture of two or more solutes dispersed evenly in a solvent
Colloids are intermediate between a solution and a suspension
Example : Foam (Shaving cream) & Emulsion (Milk)

Universal Solvent and Organic Solvent

Water is a universal solvent as it dissolve almost all substances, solid, liquids or gases
Example : Water dissolves detergents used in cleaning process

Organic solvents which are carbon - base can be used to dissolve solutes that are insoluble in water
Organic Solvents :

Alcohol
Kerosene
Acetone
Turpentine
Ether