Separtion of mixtures

Question 1

what are the 4 techniques?

Answer 1

1. chromatography
2. crystallization
3. filtration
4. distillation

Question 2

Filtration

Answer 2

used when the solid is not dissolved in the liquid.

Question 3

Distillation

Answer 3

when the solid is dissolved in the liquid and both substances are required.
you first evaporate the mixture (the liquid will become a gas and goes up the flask and into the condenser.)
the gas would turn back into a liquid in the condenser, leaving the solid behind as a residue.

Question 4

Chromatography formula

Answer 4

Rf value = distance the spot has moved/ distance the solvent has moved(solvent front)