CHEMISTRY LAB V

Paper Code: 
CHY 315
Credits: 
2
Contact Hours: 
60.00
Max. Marks: 
100.00
Objective: 

Course Objective(s):

This course will enable the students to -

  • learn about different analytical technique to measure physical property like transition temperature, freezing point depression, lattice energy etc.
  • learn about the method of preparation of inorganic coordination compounds.

Course Outcomes (COs):

Course Outcomes

Teaching Learning Strategies

Assessment

Strategies

  
 

On completion of this course, the students will be able to-

CO85: prepare simple coordination compounds.

CO86: illustrate the concept of adsorption and will be able to plot Freundlich and Langmuir adsorption isotherm

CO87: describe Nernst distribution law and calculate partition coefficient.

CO88: determine critical solution temperature for binary mixture.

CO89: determine pKa value of acid by using Henderson equation.

CO90: determine freezing point depression constant
  • Demonstrations
  • Peer learning
  • Interactive lectures
  • Problem solving exercise,
  • Handouts and manuals

 
  •  Viva voce
  •  Quiz
  

 

Unit I: 

Inorganic synthesis                                          20 Hrs

  1. Preparation of Bis-Dimethylglyoxime-nickel (II)
  2. Preparation of Sodiumtrioxalatoferrate (III)
  3. Preparation of cis and trans-bisoxalatodiaquachromate (II)
  4. Preparation of Prussian blue Fe4[Fe(CN)6]3

Physical Chemistry                                             

Minor experiments                                             20 Hrs                                          

  1. To determine the mutual solubility curve of phenol – water system and their consolute point.
  2. To determine the transition temperature of given substance by thermometric method.
  3. Determination of freezing point depression constant of given compound using Rast method.
  4. 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.
  5. To determine the heat of solution of KNO3 at a specified water-salt mole ratio.
  6. To determine pH of different buffer solutions and evaluate pKa of acid by using Henderson equation.

Major experiments                                                20 Hrs

  1. 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
  2. To study the adsorption 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.
  3. Determination of partition coefficient of acetic acid between butanol and water.
  4. To study the freezing point curve of two component simple eutectic system (acetamide-benzoic acid/ naphthalene-benzoic acid)

 

Essential Readings: 
  • Advanced Practical Physical Chemistry, Eighteenth Edition; J.B. Yadav; ‎ Krishna Prakashan Media, Meerut, 2015.

 

References: 

SUGGESTED READINGS:

  • Advanced Practical Inorganic Chemistry, Twenty Third Edition; Gurdeep Raj, Goel Publishing House, Meerut, 2013.
  • College Practical Chemistry; V.K. Ahluwalia, Sunita Dhingra, Adarsh Gulati; Universities Press (India Pvt Ltd), 2005.
  • Experimental Physical Chemistry, First Edition; V. D. Athawale, P. Mathur; New age International (P) Ltd. Publishers, New Delhi, 2011.
  • Experimental Physical Chemistry, R. C. Das and B. Behera; Tata Mc-Graw Hill publishing Co. Pvt. Ltd., 1993.

e-RESOURCES:

 

Marking Scheme

The duration of examination will be 4 hrs.

The following exercises will be set in the examinations

  • Inorganic: Synthesis                                                                        19 marks
  • Physical chemistry experiment                                                        36 marks
  • Viva                                                                                                  15 marks

                                                            Total                                 70 marks

Inorganic synthesis

This exercise carries 19 marks. Four marks out of 19 are reserved for neat, methodical and systematic working. The exercise amongst the candidates will be allotted by lot.

The yield, purity and proper presentation of the compound shall be taken into account while awarding marks.

Physical Chemistry Experiment:

The exercise carries 36 marks. Two minor experiments of 18 marks each or one major experiment of 36 marks will be given to perform. Four marks shall be awarded for preparatory work, setting up of an apparatus, neat and methodical work.

32 marks will be awarded for correct observation, use of correct formula, calculation and result within permissible limits as follows:

Minor experiments

  • Preparatory work, setting up of an apparatus, neat and methodical work.                                                                                               4 marks
  • Theory and procedure                                                                     4 marks
  • Correct observation and proper recording                                      3 marks
  • Use of correct formula and calculation                                           4 marks
  • Result                                                                                              3 marks

Major experiments

  • Preparatory work, setting up of an apparatus,
  • neat and methodical work.                                                             8 marks
  • Theory and procedure                                                                    8 marks
  • Correct observation and proper recording                                     6 marks
  • Use of correct formula and calculation                                           8 marks
  • Result                                                                                              6 marks

The permissible limit will be decided by the examiner as it varies with the nature of the experiment.

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 understood the basic principles of chemistry.

Academic Year: 
2022-2023
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