Chemistry Laboratory X

Paper Code: 
24DCHY804
Credits: 
2
Contact Hours: 
60.00
Max. Marks: 
100.00
Objective: 

This course will enable the students to

get acquainted with the quantitative estimation of different ions volumetrically and to make students learn about the synthesis of different metal complexes and to identify them with the help of IR spectra.

 

Course Outcomes: 

Course

Learning Outcome

(at course level)

Learning and Teaching Strategies

Assessment Strategies

Course Code

Course

Title

 

24DCHY 804

Chemistry Laboratory X

(Practical)

CO149: Estimate the concentrations of different ions volumetrically.

CO150: Prepare inorganic complexes and interpret their IR spectra.

CO151: Compile and report the results efficiently and develop communication skills.

CO152: 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.

Conduction of experiments, lab Records, viva voce and  quiz.

 

Unit I: 

Inorganic Synthesis                                                                                      

Preparation of selected inorganic complexes and their interpretation by IR, UV, TGA and DTA data.

  1. Metal complexes of dimethyl sulphoxide, CuCl2.2DMSO
  2. Metal oxalate hydrate complexes, Nickel dioxalate
  3. Phosphine, Ph3P and its transition metal complexes
  4. Bisacetylacetonatocobalt (II)
  5. Trisacetylacetonatoiron (III)
  6. Cis and trans bisglycinato copper (II) monohydrate
  7. [VO(acac)2]  Vanadyl acetylacetonate

 

Quantitative Analysis: Volumetric Analysis (any three)

  1. Determination of chloride ion in water by Mohr’s method or by use of adsorption indicator.
  2. Determination of nickel using Eriochrome Black T as an indicator (Back titration).
  3. Determination of percentage purity of boric acid.
  4. Determination of nitrite in a given sample.

 

 

Scheme of Examination

 

The duration of examination will be 6 hrs.

The following exercises will be set in the examination

Inorganic Synthesis                               25 marks

            Quantitative Analysis                             30 marks

             Viva                                                    15 marks

            Total                                                    70 marks      

 

1.Inorganic Synthesis

This exercise carries 25 marks. Ten marks are reserved for assignment of IR spectra and remaining fifteen marks are reserved for neat, methodical systematic working and result. 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. 

 

2.Volumetric Exercise

The exercise carries 30 marks. The distribution of marks will be as follows:

Ten marks will be reserved for the preparation of solutions, neat methodical and systematic working of the candidates.

The remaining 20 marks will be distributed as follows:

 

% Error     Marks awarded

<1.0           20

1.1              18

1.2              16

1.3              14

1.4              12

1.5              10

1.6              9

1.7              8

1.8              7

1.9              6

2.0             5

                  >2.0          0

3.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.

 

Essential Readings: 
  1. Vogel’s Textbook of Quantitative Chemical Analysis, Sixth Edition; M. Thomas, B. Sivasankar, J. Mendham, R.C. Denney, J. D. Barnes; Pearson Education, New Delhi, 2009.
  2. Infrared and Raman Spectra: Inorganic and co-ordination Compounds, Sixth Edition, Part A & B; K. Nakamoto; John Wiley & Sons, Inc.,  New Jersey, 2009.

 

References: 
  1. Advanced University Practical Chemistry, Volume I, First Edition; P.C. Kamboj; Vishal Publishing Co, New Delhi, 2013.

 

e-Resources:

  1. https://chemistry.iyte.edu.tr/wp-content/uploads/sites/48/2019/06/CHEM-332-Anorganik-Kimya-Lab.-Kitap%C3%A7%C4%B1%C4%9F%C4%B1.pdf (Inorganic Preparations)
  2. https://sites.lsa.umich.edu/jbuss/wp-content/uploads/sites/811/2020/08/inorganic-synthesis23.pdf (Inorganic Preparations)
  3. https://www.uou.ac.in/sites/default/files/slm/MSCCH-505L.pdf (Inorganic Preparations)
  4. https://www.canterbury.ac.nz/media/documents/science-outreach/chloride_mohr.pdf (Mohr’s Method)
  5. https://www.youtube.com/watch?v=I5n6i5qzHXY (Back Titrations)
  6. https://courseware.cutm.ac.in/wp-content/uploads/2020/06/assay-of-boric-acid-1.pdf (Boric Acid)

 

Academic Year: 
2024-2025
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