JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

Course Objectives

The course consists of experiments related to the principles of chemistry required

for engineering student. The student will learn:

• Estimation of hardness and chloride content in water to check its suitability for drinking purpose.
• To determine the rate constant of reactions from concentrations as an function of time.
• The measurement of physical properties like adsorption and viscosity.
• To synthesize the drug molecules and check the purity of organic molecules by thin layer chromatographic (TLC) technique.

Course Outcomes

The experiments will make the student gain skills on:

• Determination of parameters like hardness and chloride content in water.
• Estimation of rate constant of a reaction from concentration – time relationships.
• Determination of physical properties like adsorption and viscosity.
• Calculation of Rf values of some organic molecules by TLC technique.

List of Experiments:

• 1. Determination of total hardness of water by complexometric method using EDTA
• 2. Determination of chloride content of water by Argentometry
• 3. Estimation of an HCl by Conductometric titrations
• 4. Estimation of Acetic acid by Conductometric titrations
• 5. Estimation of HCl by Potentiometric titrations
• 6. Estimation of Fe2+ by Potentiometry using KMnO4
• 7. Determination of rate constant of acid catalysed hydrolysis of methyl acetate
• 8. Synthesis of Aspirin and Paracetamol
• 9. Thin layer chromatography calculation of Rf values. eg ortho and para nitro phenols
• 10. Determination of acid value of coconut oil
• 11. Verification of freundlich adsorption isotherm-adsorption of acetic acid on charcoal
• 12. Determination of viscosity of castor oil and ground nut oil by using Ostwald’s viscometer.
• 13. Determination of partition coefficient of acetic acid between n-butanol and water.
• 14. Determination of surface tension of a give liquid using stalagmometer.

REFERENCE BOOKS:

• 1. Senior practical physical chemistry, B.D. Khosla, A. Gulati and V. Garg (R. Chand & Co., Delhi)
• 2. An introduction to practical chemistry, K.K. Sharma and D. S. Sharma (Vikas publishing, N. Delhi)
• 3. Vogel’s text book of practical organic chemistry 5th edition
• 4. Text book on Experiments and calculations in Engineering chemistry – S.S. Dara