RP 6- chromotography Flashcards
1
Q
how do you measure the Rf value ?
A
Rf = distance moved by the chemical / distance moved by the solvent
2
Q
what is chromatography ?
A
a technique to separate a mixture by its solubility
3
Q
what do you use to put the colour onto the pencil spots ?
A
a capillary tube
4
Q
what does it mean when a solute travels higher up the paper ?
A
it has a strong attraction to the paper
5
Q
what is a solvent ?
A
a substance that dissolves the solute
6
Q
what is a solute ?
A
the product that is added to a solvent to form a solution
