Laboratory Course

Calibaration of fractional weights, pipettes and burettes, preparation of standard solutions, dilution – 0.1 M to 0.001 M solutions, buffer solutions.

Quantitative Analysis: Volumetric Analysis (Any four)

1. Iodometry titration – Determination of strength of CuSO₄ solution using sodium thiosulphate.
2. Redox titrations –                    

     (a) Determination of strength of ferrous sulphate solution using K₂Cr₂O₇

(b) Estimation of ferrous (Fe⁺² ) and ferric (Fe⁺³ ) by dichromate method.

3. Acid-base titration –       

  (a) Determination of acetic acid in commercial vinegar using NaOH.

             (b) Determination of strength of acid from the mixture of strong acid and weak acid ( eg. H₂SO₄ and H₃PO₄ ).

(c) Determination of strength of sodium carbonate in the mixture of washing soda and NaOH with HCl using phenophthalein and methyl red indicator.

4. Complexometric titration – Estimation of hardness of water by EDTA.

Qualitative Analysis

Detection of elements (Nitrogen, Sulphur and Halogens) and functional groups (phenols, alcohols, carboxylic acid, carbonyl, ester, carbohydrate, amine, amide and nitro) in simple organic compounds and determination of their melting/boiling points.

a) Titration of acetic acid against NaOH pH metrically.

b) Determination of solubility and solubility product of sparingly soluble salt, lead sulfate,   barium sulfate, silver chloride, calcium sulfate, lead chromate.

c) Determination of cell constant of a given cell.