Coming soon
Chemistry Laboratory II
This course will enable the students to
learn about pH measurement, surface tension and viscosity measurement of liquid pH-metric titrations of acids and bases.
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Course |
Learning Outcome (at course level) |
Learning and Teaching Strategies |
Assessment Strategies |
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Course Code |
Course title |
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25CCHY 114
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Chemistry Laboratory II (Practical)
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CO17: Determine the percentage composition of non interacting systems by viscosity and surface tension method. CO18: Interpret powder diffraction patterns and operate a pH meter for pH-based experiments. CO19: Compile and report the results efficiently, and develop communications skills. CO20: Contribute effectively in course-specific interaction. |
Approach in teaching: Power point presentation, 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.
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· Surface tension measurements
· Determine the surface tension by (i) drop number (ii) drop weight method.
· Study the variation of surface tension of detergent solutions with concentration.
· Viscosity measurement using Ostwald’s viscometer
· Determination of viscosity of aqueous solutions of (i) polymer (ii) ethanol and (iii) sugar at room temperature.
· Study the variation of viscosity of sucrose solution with the concentration of solute.
· Indexing of a given powder diffraction pattern of a cubic crystalline system
· pH-metry
· Study the effect on pH of addition of HCl/NaOH to solutions of acetic acid, sodium acetate and their mixtures.
· Preparation of buffer solutions of different pH
· Sodium acetate-acetic acid
· Ammonium chloride-ammonium hydroxide
· pH metric titration of
· Strong acid vs strong base
· Weak acid vs strong base
· Determination of dissociation constant of a weak acid.
Any other experiment related to prescribed topic can be carried out in the class.
1. Advanced Practical Physical Chemistry, Eighteenth Edition; J.B. Yadav; Goel Publishing House, Meerut, 2015.
2. Advanced University Practical Chemistry, Part I, First Edition; P.C. Kamboj, Vishal Publishing House, New Delhi; 2016.
1. Experimental Physical Chemistry; First Edition; V. D. Athawale, P. Mathur; New Age International (P) Ltd. Publishers, New Delhi, 2011.
2. Experiments in Physical Chemistry; Eight Edition; J.W. Nibler, & D. P. Shoemaker; McGraw-Hill: New York, 2003.
e-Resources:
1. https://www.fpharm.uniba.sk/fileadmin/faf/Pracoviska-subory/KFCHL/ENG/lectures/Physics/ AP11__Surface_tension.pdf (surface tension)
2. https://vlab.amrita.edu/index.php?sub=2&brch=190&sim=339&cnt=1 (viscosity)
3. https://chemcollective.org/chem/jsvlab/(pH-metry)
