7. Solutions & Chromatography Flashcards
1
Q
Solution
A
Mixture of a solute and a solvent that does not separate out
2
Q
Solute
A
The substance being dissolved
3
Q
Solvent
A
The liquid the solute is dissolving into
4
Q
Saturated solution
A
solution where the maximum of solute has been dissolved
5
Q
Chromatography practical
A
1.Draw pencil line
2. Add spots of different inks
3. Loosely roll the sheet and put in a beaker of solvent
4. Place a lid on top of the container [stop solvent from evaporating]
6
Q
Rf
A
Rf= Distance travelled by solute/Distance travelled by solvent
7
Q
The faster the solute moves up the paper the more ___ it is
A
Soluble
8
Q
Why might an ink not move up the paper?
A
Insoluble [in that solvent]
