Paper chromatography method

Question 1

first step A spot of the mixture (that you want to separate) is placed on

Answer 1

chromatography paper and left to dry

Question 2

second step The chromatography paper is then … suspended in the ……..

Answer 2

solvent

Question 3

third step As the solvent travels up through the chromatography paper, the different components within the mixture begin to move up the paper at different speeds which molecules move the fastest

Answer 3

Larger molecules move slower than smaller ones

This causes the original mixture to separate out into different spots or bands on the chromatography paper

This produces what is known as a chromatogram

Question 4

Things that have to be done so experiment isn’ t faulty and why

Answer 4

line drawn in pencil(In paper chromatography, a starting line in drawn on the paper in pencil (pencil so that it does not dissolve in the solvent and affect the results)

solvent below pencil line( so that the spots of ink do not wash off the paper into the solvent and are therefore able to travel up the paper with the solvent instead.)