Preface

Even though we've called it so, this collection is not exactly a manual, but rather a checked, corrected, enhanced & result-erased reproduction of the practical-notebook entries of a Cotton College (Guwahati, India) ex-student then (autumn, 2005) in M. Sc. 4th-semester. Hope this conglomeration, nevertheless, would greatly help the teachers and students wishing to perform the following unusual physical-chemistry experiments, for which a proper book or a manual may be difficult to find. I must render here my acknowledgements to Arunjyoti Bora (ex-student of M.Sc. 2004-2006 batch, Cotton College) who carefully computer-typed the practical experiments, and to Uday Bhaskar Sahoo (ex-student of the same batch) who has allowed to publicly reproduce his 4th-semester practical-notebook entries here.
-- Rituraj Kalita

To do experiment numbers 09-11 below you'll need to install the Computers in Chemistry Experiments Software Set (needs Visual FoxPro 6 Runtime, say via Granthaalok or Assam-Calcu software, to run - download chem_expt.zip to C:\ and then using WinZip extract it to C:\chem_expt easily).

List of GU M.Sc. physical chemistry practical experiments included here (click at the desired experiment number to view):

Expt. 01. To determine amount of the each component of the ternary mixture of HCl, CH₃COOH and CuSO₄ by conductometric titration.

Expt. 02. To determine the composition of iron-thiocyanate complex spectrophotometrically and to find out the stability constant of the complex.  

Expt. 03. To compare the cleaning power of different samples of soaps and detergents by surface tension measurements.

Expt. 04. To determine the enthalpy of neutralization of a strong acid and a strong base by using Dewar's Flask.

Expt. 05.  To determine the equilibrium constant of the reaction KI +I₂ = KI₃ by distribution method.

Expt. 06.  To determine  DG, DS and DH of a galvanic cell using potentiometric measurements.

Expt. 07. To determine the amount of each component of the ternary mixture of HCl, NH₄Cl and NaCl  by conductometric titration.

Expt. 08. To determine the composition of Cu (II) and Fe (III ) in a mixed solution of these two by spectrophotometric titration using EDTA .

Expt. 09. Justification of Job's method of continuous variation for the determination of the formula of a complex.

Expt. 10. Plots for Maxwell's speed  distribution formula in speed and translational energy form and calculation of fraction of molecules in a given speed range by numeral integration.  

Expt. 11. Rotational probability distribution for HCl and CO at two different temperatures, comparison of  their rotational partition function by direct calculation and by the simple formula q=T/q_rot  

Expt. 12. To determine the dissociation constant of an indicator like methyl red spectrophotometrically.