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Chemistry notes

Free notes for Cambridge International AS & A Level Chemistry (9701), with worked examples, exam technique and practice questions. Coverage is growing; the published topics are listed below.

Syllabus 9701 · 2 courses · 39 units · 65 notes

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AS Chemistry

59 of 59 planned notes published

Atomic structure
- Particles in the Atom and Isotopes
- Electrons, Energy Levels and Atomic Orbitals
- Ionisation Energy
Atoms, molecules and stoichiometry
- Relative Masses and the Mole
- Formulas and Equations
- Reacting Masses, Yield and Limiting Reagents
- Volumes of Gases and Concentrations of Solutions
Chemical bonding
- Electronegativity, Ionic and Metallic Bonding
- Covalent and Coordinate Bonding
- Sigma and Pi Bonds and Hybridisation
- Shapes of Molecules
- Intermolecular Forces and Hydrogen Bonding
States of matter
- Ideal Gases and pV = nRT
- Lattice Structures and Physical Properties
Chemical energetics
- Enthalpy Changes and Reaction Pathway Diagrams
- Measuring Enthalpy Changes by Calorimetry
- Hess's Law and Energy Cycles
- Bond Energies and Enthalpy Changes
Electrochemistry: redox
- Redox and Oxidation Numbers
- Balancing Redox Equations
Equilibria
- Dynamic Equilibrium and Le Chatelier's Principle
- Equilibrium Constants Kc and Kp
- Brønsted–Lowry Acids and Bases
- pH Titration Curves and Indicators
Reaction kinetics
- Rates of Reaction and Collision Theory
- Boltzmann Distribution, Temperature and Catalysis
The Periodic Table: chemical periodicity
- Period 3 Physical Properties
- Reactions of the Period 3 Elements
- Period 3 Oxides, Hydroxides and Chlorides
- Using Periodicity to Predict and Identify Elements
Group 2
- Group 2 Elements and Their Reactions
- Group 2 Compounds, Thermal Decomposition and Solubility
Group 17
- The Halogens and the Hydrogen Halides
- Reactions of the Halide Ions
- Reactions of Chlorine and Water Purification
Nitrogen and sulfur
- Nitrogen, Ammonia and Ammonium Compounds
- Oxides of Nitrogen, Sulfur Dioxide and Acid Rain
An introduction to AS Level organic chemistry
- Formulae, Functional Groups and Naming
- Shapes of Organic Molecules and Isomerism
- Organic Reaction Types and Mechanisms
Hydrocarbons
- Alkanes
- Alkenes and Electrophilic Addition
Halogen compounds
- Halogenoalkanes
- Nucleophilic Substitution and Elimination
Hydroxy compounds
- Alcohols
- Oxidation of Alcohols and the Tri-iodomethane Test
Carbonyl compounds
- Aldehydes, Ketones and Nucleophilic Addition
- Tests for Carbonyl Compounds
Carboxylic acids and derivatives
- Carboxylic Acids
- Esters
Nitrogen compounds
- Amines and Nitriles
Polymerisation
- Addition Polymers
Organic synthesis
- Organic Synthesis and Reaction Pathways
Analytical techniques
- Infrared Spectroscopy
- Mass Spectrometry
Practical skills (Paper 3)
- Titrations for Paper 3
- Qualitative Analysis
- Thermometric, Rate, Gravimetric and Gas-Volume Experiments
- Measurement, Uncertainty and Presenting Results

A Level Chemistry

6 of 49 planned notes published

Chemical energetics
Electrochemistry
- Electrolysis and the Faraday Constant

Other subjects

Mathematics Physics Biology Computer Science