Please Topics in Chemistry (Higher)
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Atomic Structure and Periodic Table [HD]
- Bohr Electron Structures - Isotopes - Energy Levels and Orbitals - Atomic Structure - The Periodic Table - Ionisiation Energy
Video Lesson (49 min)
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Bonding, Formulae & Shapes of Molecules [HD]
- Ionic and Covalent Bonds - Sigma and Pi Bonds - Properties of Compounds (demonstrated) - Electronegativity and Hydrogen Bonding - Abnormal Properties of Water - Types of Intermolecular Force - VSEPR Theory and Shapes of Molecules
Video Lesson (48 min)
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Fuels & Thermochemistry [HD]
- Heats of Combustion - Neutralisation and its Measurement - Hess's Law Calculatiions - Oil Refining and its Products (petrol and octane numbers) - Kilogram Calorific Values
Video Lesson (36 min)
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Industrial and Athmospheric Chemistry [HD]
- Industrial Manufacture of Ammonia, Nitric Acid and Magnesium - Manufacture and Uses of Oxygen, Nitrogen and Carbon Dioxide - The Ozone Layer and the Formation and Destruction of Ozone - The Greenhouse Effect, Global Warming and Possible Consequences
Video Lesson (34 min)
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Ionic Equilibria [HD]
- Ionic Product of Water and How it Gives The pH Scale - pH Calculations of Strong/Weak Acids and Bases - How pH values are Measured - How Indicators Work - Why Specific Indicators are Needed for Different Titrations
Video Lesson (23 min)
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Materials and Extraction of Metals [HD]
- Determination of Crystal Structure - The Braggs and D. Hodgkin - Plastics and Polymers - The Five Types of Polymer on the Syllabus - Corrosion and Its Prevention - Electrolysis Definitions and Applications - The Electrochemical Series - Electrolysis - Extraction of Sodium - Aluminium and Iron From Their Ores - Transition Elements and D-Block Elements
Video Lesson (44 min)
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Molecular Equilibria [HD]
- Terminology of the Topic - Le Chatelier’s Principle, Explanation - Examples and the Mandatory demonstrations - Predictions using Le Chatelier - Equilibrium Constant Expressions - How to write equilibrium constant expressions - Solving Equilibrium Problems
Video Lesson (30 min)
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Moles & Stoichiometry [HD]
- Basic definitions Ar and Mr, Isotopes - Calculation of Ar from % Abundance. - Moles & Avogadro and Examples of Calculations - Gay Lussac and Molar Volume with Examples of Calculations - Contains Worked Calculations Involving % Element in a Compound - Empirical Formulae and Reacting Masses, All Explained Step by Step
Video Lesson (27 min)
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Organic Chemistry I - Hydrocarbons
- Definitions - Nomenclature - Properties and Reactions of Alkenes - Alkenes and Alkynes - Aromatic Compounds - Preparation of Ethene and Ethyne - Demonstrated Reaction Mechanisms
Video Lesson (46 min)
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Organic Chemistry II - Oxygen-containing Organic Compounds [HD]
- Preparation (mandatory experiment), - Properties of and tests for ethanal, ketones - Reactions of Organic Acids - Esters
Video Lesson (69 min)
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Rates of Reaction & Catalysis [HD]
- Introduction to, and Explanation of Reaction rate - Factors Affecting Rates with Demonstrations - The Thiosulfate Experiments and Rate Graphs - Catalysis, with Demonstrations and Explanations - Homogeneous and Heterogeneous Catalyses and Their Mechanisms - Activation Energy and Reaction Profile Diagrams - Solving exam Questions
Video Lesson (38 min)
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Volumetric Analysis and Titrations
- Demonstration of All the Mandatory Experiments (prepare standard 0.5 M sodium carbonate solution). - Standardise a Solution of Hydrochloric Acid - Determine the Concentration of Ethanoic Acid in Vinegar - Determine Water of Crystallisation in Washing Soda Crystals - Potassium Permanganate Solution - Determine the Amount of Iron in An Iron Tablet - Standardise Sodium Thiosulfate Solution - Determine the Percentage of NaClO in Bleach
Video Lesson (50 min)
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Water [HD]
- All Relevant Definitions Are Covered - Formation and Reactions of Hard Water - Removal of Hardness - Domestic Water Treatment (illustrated) - Sewage Treatment (illustrated) - Water Analysis (suspended solids, dissolved solids, hardness, dissolved oxygen)
Video Lesson (39 min)
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