Paper Chromatography

Chromatography is a separation technique that can be used to separate colours in a mixture based on their _____

A pencil is used to mark the solvent front and the starting line because pencil is ___

When the chromatography paper is placed in the solvent, the solvent should be ____ the starting pencil line.

The more soluble colours will travel ___ up the paper.

Which of the dyes was a pure substance?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-2

Which two were the same mixture of dyes?

• 1 and 5

• 2 and 6

• 3 and 4

• 4 and 6

Tags

NGSS.MS-PS1-2

Which of the dyes contains an insoluble color?

• 6

• 5

• 4

• 3

Tags

NGSS.MS-PS1-2

Calculate the Rf value - you will need a calculator

(Rf = distance moved by substance / distance moved by solvent front)

____ can be used to separate an insoluble solid from a liquid.

Filtration uses filter paper that will allow the water soluble substance through but not the solid, because the solids particles are too ____