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CHEMISTRY LABORATORY XVIII
Course Objective(s) :
This course will enable the students to -
get acquainted about 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 (COs):
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Course Outcomes |
Teaching Learning Strategies |
Assessment Strategies |
|---|---|---|
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On completion of this course, the students will be able to- CO173: estimate the concentrations of different ions volumetrically. CO174: prepare inorganic complexes and interpret their IR spectra. |
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Inorganic Synthesis
Preparation of selected inorganic complexes and their interpretation by IR, UV, TGA and DTA data.
- Metal complexes of dimethyl sulphoxide, CuCl2.2DMSO
- Metal oxalate hydrate complexes, Nickel dioxalate
- Phosphine, Ph3P and its transition metal complexes
- Bisacetylacetonatocobalt (II)
- Trisacetylacetonatoiron (III)
- Cis and trans bisglycinato copper (II) monohydrate
- [VO(acac)2]
Quantitative Analysis: Volumetric Analysis (any three)
- Determination of chloride ion in water by Mohr’s method or by use of adsorption indicator.
- Determination of nickel using Eriochrome Black T as an indicator (Back titration).
- Determination of percentage purity of boric acid.
- Determination of nitrite in a given sample.
- 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.
- Infrared and Raman Spectra: Inorganic and co-ordination Compounds, Sixth Edition, Part A & B; K. Nakamoto; John Wiley & Sons, Inc., New Jersey, 2009.
SUGGESTED READINGS:
- Advanced University Practical Chemistry, Volume I, First Edition; P.C. Kamboj; Vishal Publishing Co, New Delhi, 2013.
e-RESOURCES:
- 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)
- https://sites.lsa.umich.edu/jbuss/wp-content/uploads/sites/811/2020/08/inorganic-synthesis23.pdf(Inorganic Preparations)
- https://www.uou.ac.in/sites/default/files/slm/MSCCH-505L.pdf(Inorganic Preparations)
- https://www.canterbury.ac.nz/media/documents/science-outreach/chloride_mohr.pdf (Mohr’s Method)
- https://www.youtube.com/watch?v=I5n6i5qzHXY (Back Titrations)
- https://courseware.cutm.ac.in/wp-content/uploads/2020/06/assay-of-boric-acid-1.pdf (Boric Acid)
Scheme of Examination
The duration of examination will be 5 hrs.
The following exercises will be set in the examination
Inorganic Synthesis 25 marks
Quantitative Analysis 30 marks
Viva 15 marks
Total 70 marks
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.
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 |
<1.0 |
1.1 |
1.2 |
1.3 |
1.4 |
1.5 |
1.6 |
1.7 |
1.8 |
1.9 |
2.0 |
>2.0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Marks awarded |
20 |
18 |
16 |
14 |
12 |
10 |
9 |
8 |
7 |
6 |
5 |
0 |
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.
