Page 293 - SUBSEC October 2017_Neat

UNIT 1
MODULE 2: KINETICS AND EQUILIBRIA (cont’d)

SPECIFIC OBJECTIVES EXPLANATORY NOTES SUGGESTED PRACTICAL
ACTIVITIES

Acid/Base Equilibria cont’d

Students should be able to:

3.6. state the basis for the Include phenolphthalein Perform experiments to
selection of acid/base and methyl orange. show that the effectiveness
indicator for use in Titration curves. of different indicators is
titrations. related to the pH changes
which occur during
titration.

4. Buffers and pH

Students should be able to:

4.1. define the term ‘buffer
solution’;

4.2. explain how buffer
solutions control pH;

4.3. calculate the pH of buffer Perform simple
solutions from appropriate experiments to determine
data; and, the pH of buffer solutions.

4.4. discuss the importance of Include reference to blood
buffers in biological buffer systems such as
systems and in industrial hydrogencarbonate,
processes. phosphate and amino- acid
systems, enzyme catalysed
reactions and the food
processing industry.

5. Solubility Product

Students should be able to:

5.1. define the term solubility Write equilibrium
product, Ksp; constant expression for
Ksp.

5.2. explain the principles
underlying solubility
product and the common
ion effect;

CXC A11/U2/17 24