Separation Techniques

Question 1

Chromatography experiment

Answer 1

Separates 2 liquids
Draw a line at the base of the chromatography paper in pencil as it is insoluble
Draw solvent front line at the top
Dot the ink
Place in water
Remove from water when the water has reacher the solvent front
Look at the separated components on the chromatogram

Question 2

Filtration

Answer 2

Insoluble solid and liquid

Filter paper in funnel
Liquid passes through
Solid left as residue

Question 3

Simple distillation

Answer 3

Separated depending on bp

Question 4

What does filtration separate

Answer 4

Liquid and insoluble solid

Question 5

Describe filtration

Answer 5

Place the mixture into a funnel
Liquid passes through is called the filtrate
Solid inside filter paper is called the residue

Question 6

What does simple distillation separate

Answer 6

Two liquids with dif bps

Question 7

What is Rf value

Answer 7

The distance travelled by the spot relative to the distance travelled by the solvent

Question 8

How to measure the distance travelled by the spot

Answer 8

Base line to middle of spot

Question 9

How to measure the distance travelled by the solvent

Answer 9

Base line to solvent front

Question 10

Higher Rf =

Answer 10

More soluble

Question 11

What does a chromatogram show

Answer 11

Composition of a mixture