Filtration, Crystallization and Chromatography Flashcards
1
Q
Filtration
A
to separate insoluble solids from liquid
2
Q
Crystallisation
A
to separate soluble solids from liquid
3
Q
Chromatography
A
to seperate different dyes
4
Q
Why does chromatography work?
A
dyes have different solubilities
5
Q
What is the Rf value of a dye?
A
The ratio between the distance travelled by solvent and the distance travelled by dye.
6
Q
What is the equation for the Rf value
A
Distance travelled by the solvent / Distance travelled by dye
7
Q
Simple distillation
A
to separate 2 liquids with different boiling points
8
Q
Fractional distillation
A
to separate multiple liquids with similar boiling points
