Solutions are mixtures in which
soluble particles are
completely dissolved in a
liquid or gas.
What are Solutions?
How do we create a solution?
Solute + Solvent = Solution
Example: salt + water salt solution
(solute)(solvent)
The solid which fully
dissolves
The liquid which is used to dissolve
the solid
Properties of
Solutions
•Homogeneous (solvent &
solute particles evenly
spread throughout the
solvent)
•No residue (undissolved
solid) is left after
filtration
Properties of
Solutions
•No separation of
solute and solvent
when left to stand
•Light is able to completely
pass through a solution
Dissolving solid to form a solution
When a solid dissolves to form a solution, the
solute particles separate and mix evenly with
the solvent particles.
Uses of solutions in Homes
•Soap and detergent are dissolved in water to
help us wash our laundry.
•Syrups are dissolved in the water to make
drinks.
•Salt, sugar and other condiments are
dissolved in liquids when we cook.
Uses of solutions in Industries
•Dyes are dissolved in water to produce
colourful fabrics.
•Oils from plants and flowers are dissolved in
alcohol to produce perfumes.
Types of solutions
State of
solute
State of
solvent
Examples of solution
solid solid Alloys
Bronze (tin dissolved in copper)
Steel (iron, carbon + others)
Brass (zinc dissolved in copper)
gas gas Air
(oxygen, carbon dioxide, noble gases dissolve
in nitrogen)
Types of solutions
State of
solute
State of
solvent
Examples of solution
Solid
Liquid
Amalgam
( silver, tin, gold or copper dissolves in
mercury)
Sugar solution
(sugar dissolves in water)
Liquid Alcoholic drinks
(alcohol dissolves in water)
Gas Aerated
(Gas dissolved in water)