States, Mixtures + Separation - Chromatography

Question 1

How can chromatography be used

Answer 1

It can be used to separate mixtures and can help identify substances in a compound

Question 2

What phases does chromatography involve

Answer 2

A stationary phase and a mobile phase

Question 3

what does separation depend on

Answer 3

The substances attraction to the stationary phase

Question 4

What is the Rf value

Answer 4

the ratio of distance moved by a substance to the distance moved by the solvent

Question 5

what is the Rf value equation

Answer 5

distance moved by substance/distance moved by solvent

Question 6

How can Rf values be used to identify compounds

Answer 6

different compounds have different Rf values

Question 7

In a mixture the compounds may separate into ………. depending on the solvent

Answer 7

different spots

Question 8

A pure compound will produce how many spots in all solvents

Answer 8

one

Question 9

learn how chromatography seperates mixtures

Answer 9

page 16 in cgp

Question 10

how can chromatography be used to separate pure from impure substances

Answer 10

a pure substance will create one spot, when you perform chromatography on the impure substance more than 1 spot will be created