Chromatography

Question 1

Why is chromatography used

Answer 1

To separate mixtures of substances into their individual components

Question 2

State the stationary phase for TLC and Column Chromatography, then gas-liquid chromatography

Answer 2

Solid for TLC and column chromatography or liquid for gas liquid for chromatography

Question 3

Explain the motion of the mixture in the stationary phase compared to motion of the mobile phase

Answer 3

Stationary phase stays still while in the mobile phase the mixture can travel across it

Question 4

What causes a portion of the mixture to travel slow in the stationary phase

Answer 4

Having an attraction to the stationary phase

Question 5

State the mobile phase of TLC and Column Chromatography and gas-liquid chromatography

Answer 5

TLC and Column:A liquid
gas-liquid:A gas

Question 6

Explain the Mobile phase for liquid

Answer 6

The mixture is dissolved in a solvent. This is called a eluent. The mobile phase flows across the stationary phase and carries the components of the mixture with it.

Question 7

Explain the mobile phase for a gas