Chemistry in Society - Chemical Analysis Flashcards
1
Q
In thin-layer chromatography, what is the name for the paper?
A
Stationary phase.
2
Q
In thin-layer chromatography, what is the name for the solvent?
A
Mobile phase.
3
Q
What is the solvent front?
A
The height the solvent reaches.
4
Q
What does chromatography separate the molecules based on?
A
- The size of the molecules.
- The polarity of the molecules
5
Q
What does a high peak suggest?
A
There is a lot of that component.
6
Q
What is retention time?
A
How long the component takes to travel through the mixture.
7
Q
What is a standard solution?
A
A solution with a precisely known concentration.
8
Q
How do you make a standard solution?
A
By dissolving a known mass of solute in water and transferring this to the standard flask with rinsing. The standard flask is filled to the mark.
