Quelpr
1 markAcid/Base Equilibria

CAPE Chemistry Unit 1 · 2006 · Paper 1 · Question 8(a)(i)

A variety of chromatographic methods can be used to separate mixtures.

What is meant by retention time as applied to gas liquid chromatography (GLC)?

The mark scheme is shown once you've answered.

Practise this question

Other parts of this question

  1. 8(a)(ii)Distinguish between a stationary phase and a mobile phase used in chromatography.[2 marks]
  2. 8(a)(iii)Give ONE example EACH of commonly used stationary and mobile phases in GLC.[2 marks]
  3. 8(b)(i)Calculate the Rᶠ values for the TWO samples.[2 marks]
  4. 8(b)(ii)Deduce whether the same red dye is used to make both types of ink. Give TWO reasons for your answer.[3 marks]

More practice: the rest of this paper · more Acid/Base Equilibria questions · all CAPE Chemistry Unit 1 past papers