Chromatography Flashcards
1
Q
What is chromatography?
A
Analytical method to separate substances in a mixture and be used to identify substances
2
Q
What are the phases of chromatography?
A
Mobile phase (where the molecules can move)
Stationary phase (when the molecule cant move)
3
Q
When will components dissolve?
A
Stationary phase
4
Q
How many spots will a pure substance form?
A
1
5
Q
What does higher solubility mean
A
Less attracted to the paper and will travel more
6
Q
How to calculate Rf value?
A
Distance travelled by substance/distance travelled by solvent
7
Q
What is the results of chromatography analysis called?
A
Chromatogram
8
Q
Why preform chromatography?
A
To test for a certain substance in a mixture
Must run a pure substance alongside the unknown mixture
