This course will enable the students to -
develop experimental skills of various instruments (spectrophotometer, pH meter, polarimeter etc.) and gain knowledge of basic terms regarding phase equilibrium, thermochemistry, optical measurement and Lambert-Beer law.
Course |
Learning Outcome (at course level) |
Learning and Teaching Strategies |
Assessment Strategies |
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Course Code |
Course Title |
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24DCHY 806 |
Chemistry Laboratory XII (Practical) |
CO158: Calibrate and operate a variety of scientific instrument to perform observations related to the experiment. CO159: Explain the principles behind the experiments performed in the lab and calculate these values (pKa value, dissociation constant etc.) CO160: Perform experiments based on pH-metry, phase equilibria and spectrophotometry. CO161: Record experimental data accurately with proper significant figure and analyze the results of such experiments. CO162: Contribute effectively in course-specific interaction. |
Approach in teaching: Laboratory instructions and Demonstrations.
Learning activities for the students: Peer learning, hands-on-learning, interpretation of data, record writing and learning through virtual labs
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Conduction of experiments, lab Records, viva voce and quiz |
A list of experiments under different headings is given below. Students are required to perform 8-10 experiments (minimum two from each category).
Scheme of Examination
The duration of examination will be 6 hrs.
The following exercise will be set in the examination
Physical Chemistry Experiment (two)
Experiment I 35 marks
Experiment II 20 marks
Viva 15 marks
Total 70 marks
1.Physical Chemistry Experiment
The exercises in Physical chemistry can be modified by the examiners and the same will be explained to the candidates. However, such modifications will not involve any departure from the basic principles over which experiments are prescribed in the syllabus. Candidates shall be given 2 exercises out of the exercises prescribed in the syllabus. The distribution of marks will be as follows:
Major experiment
The exercise carries 35 marks. One major experiment by lot will be given to perform. 5 marks shall be awarded for preparatory work, setting up of an apparatus, neat and methodical work. 30 marks will be awarded for correct observation, use of correct formula, calculation and result within permissible limits as follows:
· Theory and procedure 8 marks
· Correct observation and proper recording 8 marks
· Use of correct formula and calculation 8 marks
· Result 6 marks
Minor experiment
The exercise carries 20 marks. One minor experiment by lot will be given to perform. 4 marks shall be awarded for preparatory work, setting up of an apparatus, neat and methodical work. 16 marks will be awarded for correct observation, use of correct formula, calculation and result within permissible limits as follows:
· Theory and procedure 4 marks
· Correct observation and proper recording 5 marks
· Use of correct formula and calculation 5 marks
· Result 2 marks
The permissible limit will be decided by the examiner as it varies with the nature of the experiment.
No marks for calculation will be awarded to a candidate for not calculating result.
The permissible error will depend on the nature of the experiment. Generally + 10% error may be taken as permissible error for experiments involving potentiometric and conductometric measurements. The constancy in values or rate constants may be taken into consideration while awarding mark in experiments on chemical kinetics. One mark shall be deducted for each + 2% error over permissible limit.
2.Viva
Oral questions shall generally be asked over the work assigned to the candidate. The purpose is to find out as to what extent the candidate has understanding the basic principles of chemistry.
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