Separating Mixtures

Question 1

Filtration

Answer 1

To separate an insoluble solid from a liquid

e.g. sand and water

Question 2

Crystallisation

Answer 2

To separate a soluble solid from a liquid using heat. It produces crystals
(e.g. salt and water)

Question 3

Simple distillation

Answer 3

To separate a solvent solution. When solute has a high boiling point

Question 4

Fractional distillation

Answer 4

To separate different liquids from a mixture of other liquids
(e.g. squash)

Question 5

Chromatography

Answer 5

To separate substances. Stationary phase and mobile phase.

Question 6

How do you calculate the retention factor?

Answer 6

Rf=distance travelled by component/distance travelled by solvent