Paper chromatography

Question 1

Why is paper chromatography used

Answer 1

to separate and identify different colours in a mixture

Question 2

Method to paper chromatography

Answer 2

draw a start line in pencil, space out 4 sample spots, add known coloured dye to 3 of the spots, add spot of unknown dye, place beaker and add distilled water below the line, allow water to move up the paper

Question 3

How does paper chromatography work

Answer 3

the solvent carries the colourings up the chromatography paper

Question 4

The more soluble the colouring is

Answer 4

the higher up the colouring is deposited on the chromatography paper

Question 5

Retention factor (Rf) equation

Answer 5

distance moved by the substance/distance moved by the solvent

Question 6

Mobile phase (paper chromatography)

Answer 6

solvent

Question 7

Stationary phase (paper chromatography)

Answer 7

chromatography paper