Category:OCR A level Chemistry

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Contents

Module 1 Foundation chemistry

Atoms, molecules and stoichiometry

Relative masses of atoms and molecules, Moles, Avogadro constant, Determination of relative atomic masses, Ar, from mass spectra, Chemical equations, Calculation of empirical and molecular formulae, Calculation of reacting masses, mole concentrations and volumes of gases,


Atomic structure

Nucleus of the atom, Ionisation energies, Electrons,


Chemical bonding and structure

Ionic bonding, Covalent bonding, Dative covalent (co-ordinate) bonding, Simple molecules, Electronegativity and bond polarity, Intermolecular forces, Metallic bonding, Bonding and physical properties.


The periodic table

Structure of the Periodic Table, Periodicity of physical properties of elements,


The Periodic Table: The Group 2 elements and their compounds

Group 2 metals and their compounds, Oxidation number, Redox processes, Relative reactivity of the Group 2 elements, Trends in some reactions of Group 2 compounds,


The Periodic Table: The Group 7 elements and their compounds

Group 7 non-metals, Halide ions, Chlorine reactions with water and with sodium hydroxide,



Module 2: Chains and rings

Basic concepts

Drawing organic compounds, Naming of organic compounds, Structural and cis-transisomerism, Percentage yields,


Hydrocarbons: Alkanes

Alkanes


Hydrocarbons: Fuels

Crude oil as a source of organic chemicals, Cracking, isomerisation and reforming, Hydrocarbons as fuels,


Hydrocarbons: Alkenes

Alkenes, Polymers, Industrial importance of alkenes,


Alcohols

Ethanol, Alcohols, Infra-red absorption of O-H and C=O bonds,


Halogenoalkanes

Halogenoalkanes, Carbon–halogen bonds,


Module 3: How far, how fast?

Enthalpy changes

Enthalpy changes, Bond enthalpy, Hess’s Law, Enthalpy cycles,


Reaction rates

Collision theory, Reaction rates, Activation energy, Catalysts,


Chemical equilibrium

Chemical equilibria: reversible reactions, dynamic equilibria, le Chatelier’s principle, Industrial processes: the Haber process, Acid-base equilibria,


Module 4: Chains, rings and spectroscopy

Arenes

Arenes, Arenes : Nitration, halogenation and alkylation, Phenols,


Carbonyl compounds

Carbonyl compounds: Reactions, Carbonyl compounds: Characteristic tests,


Carboxylic acids and esters

Carboxylic acids; formation of salts, Esterification of carboxylic acids, Hydrolysis of esters, Acyl chlorides from carboxylic acids,


Nitrogen compounds

Amines, Amino acids; peptide formation, Hydrolysis of proteins,


Stereoisomerism and organic synthesis

Stereoisomerism, Organic synthesis of 2-hydroxypropanoic acid (lactic acid), Chirality,


Polymerisation

Addition polymerisation, Condensation polymerisation, Polymers,


Spectroscopy

Mass spectrometry, nmr spectroscopy,


Module 5, component 1: Trends and patterns

Lattice enthalpy

Lattice enthalpy, Born-Haber cycles, Stability of Group II Carbonates


Periodic table: Period 3

Preparation of Period 3 oxides and chlorides, Periodic trends of oxides and chlorides,


Period table: Transition elements

Properties of transition elements, Ligands, complex ions and ligand exchange, Precipitation reactions, Redox reactions, Colorimetry,

Module 5, component 2: Biochemistry

Proteins

Amino acids, polypeptides and proteins, Protein structure, Denaturation of proteins,


Enzymes

Enzymes, Competitive and non-competitive inhibition, Industrial uses of enzymes,


Carbohydrates

Monosaccharides, Disaccharides, Polysaccharides,


Lipids and membrane structure

Lipids, Triglycerides, Phosphoglycerides,


Nucleic acids

Nucleotides and nucleic acids, DNA and RNA, DNA and genetic information, m-RNA,


Module 5, component 3: Environmental chemistry

The atmosphere

Composition of the atmosphere, Carbon cycle, Chemical reactions in the atmosphere, Ozone layer, Residence times, Pollution in the troposphere, Greenhouse Effect,


The hydrosphere

Air-water interface, Cations and anions in natural waters, Potable water,


The lithosphere

Chemical weathering of rocks, Clay minerals, Cation exchange, Supply of nutrients to plants,


Treatment of waste

Disposal of solid domestic waste,


Module 5, component 4: Methods of analysis and detection

Separation techniques for analysis: chromatography and electrophoresis

Chromatography, Electrophoresis,


Mass spectrometry

High resolution mass spectrometry, Mass spectrometry of molecules, Elucidation of structure,


Atomic emission spectroscopy

Electromagnetic spectrum, Atomic emission line spectra, Flame emission spectroscopy,


Ultraviolet/visible absorption spectroscopy

Chromophores, Delocalisation, Dyes and indicators,


Combined spectral techniques

Elucidation of structure using up to three spectra,



Module 5, component 5: Gases, liquids and solids

States of matter

Phase, Gaseous state, Ideal gas behaviour and deviations, Ideal Gas Equation,


Phase diagrams

Phase diagrams, Eutectics, Alloys,


Distribution between phases

Henry’s Law, Partition coefficient,


Raoult’s Law and distillation

Raoult’s Law, Boiling point/composition curves; fractional distillation; azeotropic mixtures, Steam distillation,




Module 5, component 6: Transition elements

Electrode potentials

Electrode potentials, Standard cells, Feasibility of reactions,


Ligands and complexes

Bonding in complexes, Stoichiometry and isomerism of complexes,


Colour

Colour in transition metal complexes, d-orbitals, Ligands,


Chemistry of Transition metals

Transition metals,


Module 6, component 1: Unifying concepts in chemistry

How fast?

Concentration–time graphs, Rate–concentration graphs, Orders; rate equations; rate constants, Rate-determining step,


How far?

Mole fractions, The equilibrium constant Kc, The equilibrium constant Kp,


Acids , bases and buffers

Brønsted-Lowry theory of acids and bases, pH and hydrogen ion concentration, Titration curves and indicators, Buffers,


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