Page 320 - SUBSEC October 2017_Neat

UNIT 2
MODULE 2: ANALYTICAL METHODS AND SEPARATION TECHNIQUES (cont’d)

SPECIFIC OBJECTIVES EXPLANATORY NOTES SUGGESTED PRACTICAL
ACTIVITIES

Chromatographic Methods of Separation cont’d

Students should be able to:

8.4. name examples of Include reference to
commonly used stationary cellulose, silica gel, alumina.
phases;

8.5. separate the components of Suitable mixtures which Perform simple
mixtures; and, could be used include amino experiments to separate
acids, plant pigments, food the components of
colouring. mixtures, using paper and
column chromatographic
techniques.

8.6. cite the wide applications of Refer to pesticide analysis,
chromatographic methods forensic testing, purification
of separation. of natural products.

9. Phase Separations

Students should be able to:

9.1. discuss the chemical State Raoult’s Law. Perform simple experiments
principles upon which Definition of ideal and non- to illustrate the concept of
simple distillation and ideal mixture required. boiling point elevation.
fractional distillation are
based; The interpretation of
boiling point composition
curves of both ideal and
non-ideal mixtures is
required. A qualitative
treatment of boiling point
composition curves of
azeotropic mixtures is
required.

9.2. discuss the advantages of
carrying out distillation
processes under reduced
pressures;

CXC A11/U2/17 51