Laboratory course V

Inorganic Synthesis                                                           20 hrs

a) Preparation of Bis-Dimethylglyoxime-nickel (II)

b) Preparation of Sodiumtrioxalatoferrate (III)

c) Preparation of cis and trans-bisoxalatodiaquachromate (II)

d) Preparation of Prussian blue Fe₄[Fe(CN)₆]₃

Physical Chemistry   

Minor experiments                                                                                                                                                                                40 Hrs

1. To determine the mutual solubility curve of phenol – water system and their    consolute point.
2. To determine the transition temperature of given substance by thermometric method.
3. Determination of freezing point depression constant of camphor using Rast method.
4. Determine the lattice energy of calcium chloride from its heat of solution using Born-Haber cycle. You are provided the Enthalpy changes for       Ca⁺²(g) → Ca(g)  ;  2Cl^- (g) → 2Cl (g), Ca (g) → Ca (s), 2Cl (g) → Cl₂ and Ca (s) + Cl (g) → CaCl₂ (s) as -451.1, 174.3, -38.8, -58.0 and -190.0 Kcal/mole respectively.
5. To determine the heat of solution of KNO₃ at a specified water-salt mole ratio.
6. To determine pH of different buffer solutions and evaluate pKa of acid by using Henderson equation.

 Major experiments

1. To study the effect of a solute (NaCl/succinic acid) on the critical solution temperature of two partially miscible liquids (e.g. phenol-water system) and to determine the concentration of that solute in the system.
2. To study the absorption of acetic acid or oxalic acid from aqueous solution by activated charcoal or animal charcoal and examine the validity of Freundlich and Langmuirs adsorption isotherms.
3. Determination of partition coefficient of acetic acid between butanol and water.
4. To study the freezing point curve of two component simple eutectic system (acetamide-benzoic acid/ naphthalene-benzoic acid).