1. Separation of mixtures Uniformly mixed – only see one layer
what is homegeneous?
What is solute ?
Separation of mixtures
Uniformly mixed – only see one layer
substance that dissolve in a solvent
What is solution ?
Mixture of the solute and the solvent
What is solvent?
Is a substance that dissolves the solute
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2. Physical method used to separated different mixtures
Method of separation
Physical method used to separated different mixtures
Example: air ,water . Crude oil
Example of physical methods: magnetic attraction , flirtation and evaporation
What is No separation of solute and solvent?
Separation of mixtures part2
What is No residue after flirtation?
Always maintain a uniform appearance
Cannot be separated by filter
Properties of suspension
Non homogenous
Resident present after flirtation
Separation of solute and solvent when left to stand
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3. Separation of mixture part 3
Paper chromatography
Separation of mixture part 3
Crystallisation
Use to separate small amounts of mixtures.
Make sure of the fact that difference substances dissolve to different extend mixtures.
Used to separate mixtures of colour substance such as ink and dyes.
Also used to identity the content of mixture or to test the purity of a liquid
Used to separate a soluble solid from a solid liquid mixture.
The solid is first dissolved in solvent to produce a solution .
The solution is then heated to evaporate most of the solvent .
The solution now is said to saturated.
On cooling , the dissolve solids appear as crystals .
The impurities remain in the solution.
The crystals can be dried