Lecture 1 |
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Theories of acids and bases- Lowry- Bronsted concept, conjugate acid –base pairs, amphiprotic substances, relative strengths of acid base pairs
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Lecture 2 |
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Solvent system concept of acids and bases, examples. Lewis concept- types of molecules or species that can act as Lewis acids and Lewis bases |
Lecture 3 |
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Pearson’s Hard and Soft Acid- Base concept. Characteristics of hard and soft acids and bases, HSAB principle. Applications of HSAB principle- stability of complexes, prediction of coordination in complexes of ambidentate ligands, predicting feasibility of a reaction, prediction of hardness and softness |
Lecture 4 |
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Solvent properties- liquid range, dielectric constant, solvent polarity, classification of solvents. Protic solvents – autoionisation of protic solvents (H2O, liq. NH3). Aprotic solvents –classification with examples. Molten salts - Classification with examples for each, and uses |
Lecture 5 &6 |
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Levelling effect of solvents- explanation, levelling solvents and differentiating solvents. Liquid NH3- autoionisation, acid-base reactions, solvation, solvolysis (comparison with H2O in each case). |
Lecture 7 |
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(self-study), Solutions of alkali metals in liquid ammonia. Advantages and disadvantages of liq. NH3 solvent. Liquid SO2 as solvent- autoionisation and acid base reactions.
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Lecture 8 |
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Anhydrous HF- autoionisation, acid-base reactions. Superacids- Hammet acidity function (equation is not required). Examples of superacids. Application of superacids |
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