Chapter 33: Chromatography Flashcards
1
Q
what does TLC stand for?
A
Thin Layer Chromatography
2
Q
What does TLC stand for?
A
Thin Layer Chromatography
3
Q
How do you calculate the Rf value of a substance?
A
Distance moved by spot / distance moved by solvent
4
Q
What advantages does TLC have over paper chromatography?
A
It runs faster.
Smaller sample.
Spots spread out less.
TLC plates are more robust than paper.
5
Q
3 Advantages of TLC compared to paper chromatography
A
faster run time, plates are more robust than paper, spots spread out less, smaller amounts of liquid can be separated.
6
Q
Name the types of chromatography
A
TLC.
Paper.
Column.
Gas-liquid (GC)
7
Q
What can you deduce about a substance with a high Rf value?
A
It is quite soluble.
