Laboratory Course V

(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

Minor experiments                                                                                                                

a) To determine the mutual solubility curve of phenol – water system and their consolute point.

b) To determine the transition temperature of given substance by thermometric method.

c) Determination of freezing point depression constant of camphor using Rast method.

d) 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.

 Major experiments

e)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

f)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.
 g)Determination of partition coefficient of acetic acid between butanol and water.