UNIVERSITY OF MADRAS
B.Sc. DEGREE COURSE IN CHEMISTRY
SEMESTER SYSTEM WITH CREDITS
(Effective from the Academic Year 2003-2004)

Application Oriented Subject-II - Practical III - Physical Chemistry

Duration: 3 hrs
Maximum Marks: 100
Credits: 4

1. Distribution Law

a) Determination of partition coefficient of iodine between carbon tetra chloride and water.
b) * Degree of association of benzoic acid between water and benzene.
c) Equilibrium constant of the reaction KI + I₂ = KI₃

2. Kinetics

Determination of the orders of the following reactions.
a) Acid catalysed hydrolysis of an ester (methyl or ethyl acetate).
b) Saponification of an ester (methyl or ethyl acetate).
c) Jodination of acetone.

3. Molecular weight of a solute - Rasts method using naphthalene, meta dinitrobenzene and diphenyl as solvents.

4. Heterogeneous equilibria:

5. a) Effect of impurity - 2% NaCl or succinoc acid solutions on phenol determination of the concentration of the given solution.

b) Determination of the transition temperature of the given salt hydrate. Na₂ S₂O₃, 5H₂O, CH₃ COONa, 3H₂O, SrCl₂, 6H₂O, MnCl₂, 4H20

6. Electrochemistry

Conductivity
a) Determination of cell constant and equivalent conductivities of solutions of two different concentrations.
b) Conductornetric titration of a strong acid against a strong base.

7. Potentiometric titration of a strong acid against a strong base.

*Need not be given in examination.