Seperation Techniques

Question 1

Filtration?

• what?
• when used?

Answer 1

• The use of filter paper to remove large, insoluble particles from a solution
• When you need to separate insoluble particles from soluble particles.

Question 2

Evaporation?

• what?
• when used?

Answer 2

• From a liquid to a gas

- When water is in a solution and needs to be removed

Question 3

Distillation?

• what?
• when used?

Answer 3

• the separation of different liquids in a solution by evaporation
• when you have a solution made up of different liquids with different boiling points that need to be seperated.

Question 4

Chromatography?

• what?
• when used?

Answer 4

• Process used to separate a mixture of soluble substances
• separating different chemicals on a small scale. Depends on solubility if the substance. (Particles are carried by the water up the paper and deposited depending on the size of the molecule and how soluble it is)

Question 5

Precipitation?

• what?
• when?

Answer 5

• when 2 liquids are put together and one of the products is a solid
• used to create chemicals of higher purity. Depends on solubility

Question 6

Dissolving?

• what?
• when?

Answer 6

• when the solute does I to solution with the solvent.

- when solid molecules are surrounded by liquid molecules