Paper Chromatography Flashcards

1
Q

what’s separated in paper chromatography

A

mixtures of soluble substances

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

what does it mean when a component travels the furthest

A

it means that the component is highly soluble in the solvent

they are also minimally attracted to the chromatography paper

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

what type of phase is a solvent

A

its a mobile phase

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

what type of phase is the chromatography paper

A

Stationary phase

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

what does chromatography produce

A

Chromatography produces chromatograms

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

whats the equation for Rf value

A

Rf = Distance travelled by substance / distanced travelled by solvent

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

what are the 3 things that describe a reference substance

A

1) Used in chromatography
2) Can provide indication of substance present
3) Pure sample

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What can we say if the Rf values of a reference and a spot match in all solvents?

A

its very likely that the mixture contains the reference compound

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

whats the apparatus required for paper chromatography

A

1) Chromatography paper
2) Beaker
3) Solvent

How well did you know this?
1
Not at all
2
3
4
5
Perfectly