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HPLC
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DEVELOPMENT OF CHROMATOGRAMS (FRONTAL ANALYSES, DISPLACEMNET AND ELUTION METHODS)
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Ca in Biology
Calcium in Biology – PowerPoint Presentation This presentation explains the biological importance of calcium ions (Ca²⁺), their role as a second messenger, calcium homeostasis, and intracellular signalling mechanisms. It covers calcium-ATPase, the sodium–calcium exchanger, calmodulin, calcium-dependent protein kinase activation, muscle contraction and relaxation, the troponin complex, phosphorylase kinase activation, and epinephrine-mediated glycogenolysis. Topics Covered: • Biological functions of calcium ions • Calcium homeostasis and transport mechanisms • Calcium as a second messenger • Calmodulin and protein kinase activation • Role of calcium in muscle contraction and relaxation • Troponin and tropomyosin regulation • Activation of phosphorylase kinase • Epinephrine signalling, cAMP and glycogenolysis Suitable for undergraduate and postgraduate students of Biology, Zoology, Botany, Biochemistry and Physiology. Useful for classroom teaching, revision and examination preparation. Format: PowerPoint (PPT) Subject:Biochemistry
BOTANY (NEP-2020)
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Anthropology (NEP-2020)
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CHEMISTRY SYLLABUS (NEP-2020)
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STATISTICAL THERMODYNAMICS
Comprehensive study notes on Statistical Thermodynamics covering fundamental principles, molecular energy distributions, Boltzmann distribution law, partition functions, molecular partition functions, and their applications in calculating thermodynamic properties. Ideal for undergraduate and postgraduate Chemistry students preparing for university examinations, competitive examinations, and advanced studies in Physical Chemistry.
statistical thermodynamics
Comprehensive study notes on Statistical Thermodynamics covering fundamental principles, molecular energy distributions, Boltzmann distribution law, partition functions, molecular partition functions, and their applications in calculating thermodynamic properties. Ideal for undergraduate and postgraduate Chemistry students preparing for university examinations, competitive examinations, and advanced studies in Physical Chemistry.
STATISTICAL THERMODYNAMICS'
Comprehensive study notes on Statistical Thermodynamics covering fundamental principles, molecular energy distributions, Boltzmann distribution law, partition functions, molecular partition functions, and their applications in calculating thermodynamic properties. Ideal for undergraduate and postgraduate Chemistry students preparing for university examinations, competitive examinations, and advanced studies in Physical Chemistry.
Walsh Diagram
Walsh Diagram – Lecture 1 is a comprehensive study material covering the fundamental concepts and systematic construction of Walsh diagrams. It explains the relationship between molecular geometry, bond angle, molecular orbital energy, VSEPR theory, Molecular Orbital Theory (MOT), and Group Theory. The notes include the rules for drawing Walsh diagrams, symmetry analysis of atomic orbitals and ligand group orbitals, and symmetry-allowed orbital combinations. A detailed H₂O molecule case study compares linear (D∞h) and bent (C₂v) geometries, including molecular orbital diagrams, bond order, and changes in orbital energy with bond angle. The final section explains the Walsh energy diagram and the factors responsible for orbital energy changes during bending.
Walsh Diagram for NH3
This study material explains the Walsh diagram of NH₃, illustrating the variation of molecular orbital energy with molecular geometry. It helps students understand the relationship between bonding, orbital symmetry, molecular geometry, and electronic structure of NH₃. The material is useful for students studying Molecular Orbital Theory, Chemical Bonding, and Group Theory at undergraduate and postgraduate levels.
ESTIMATION OF FERROUS AMMONIUM SULFATE (FAS) USING STANDARD POTASSIUM DICHROMATE SOLUTION POTENTIOMETRICALLY
This study material provides a complete laboratory procedure for the potentiometric estimation of ferrous ammonium sulfate (FAS) using standard potassium dichromate (K₂Cr₂O₇) solution. It covers the principle of potentiometric titration, the role of the platinum indicator electrode and saturated calomel reference electrode, the redox reaction involved, experimental procedure, observation table, graphical determination of the equivalence point, and calculations for determining the amount of FAS present in the given sample.
DETERMINATION OF PERCENTAGE OF COPPER IN BRASS USING STANDARD SODIUM THIOSULFATE SOLUTION
This study material provides a complete laboratory procedure for the determination of the percentage of copper in a brass sample using standard sodium thiosulfate solution. It includes the principle and chemical reactions involved, required apparatus, dissolution of the brass sample using nitric acid, preparation of the brass solution, iodometric estimation of copper using KI and sodium thiosulfate, starch as an indicator, observation and calculation steps, and the final determination of the percentage of copper in the given brass sample.
Determination of total hardness of a sample of water
This study material provides a detailed practical procedure for the determination of total hardness of a water sample using EDTA complexometric titration. It covers the principle of water hardness, preparation of standard EDTA solution, use of NH₃–NH₄Cl buffer and Eriochrome Black T indicator, titration procedure, endpoint detection, observations, and calculations. The hardness of water is expressed as ppm of CaCO₃.
👉 Aromatic, Antiaromatic and Nonaromatic Compounds: Structure and Stability
This study material provides a clear and comprehensive overview of aromatic, antiaromatic, and nonaromatic compounds, focusing on their structural features, electronic configurations, stability, and aromaticity criteria. This material is useful for undergraduate and postgraduate students studying Organic Chemistry and for exam preparation.
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