GCE



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AS AND A LEVEL CHEMISTRY

Switching from AQA to Edexcel

This document is designed to help you compare the existing 2008 AQA Chemistry specification (2420) with the new 2015 Edexcel Chemistry specification.

The document gives an overview, at the topic level, of where the material covered in the existing AQA Chemistry specification can be found in the new Edexcel Chemistry specification. The following tables then give a more detailed breakdown of the Edexcel specification, and highlights areas of difference. These will help you see where material that you currently teach in the AQA specification is not present in the Edexcel specification; or where the Edexcel specification incorporates material that is new to you.

As a general overview, the 2015 Edexcel Chemistry specification is split into a number of topics. At AS, these topics include: atomic structure; calculations; bonding & structure; organic chemistry of alkanes, alkenes, halogenoalkanes and alcohols; and an introduction to kinetics, energetics and equilibria. In the second year of the A level, these topics are extended to include: further work of kinetics, energetics and equilibria; organic chemistry of carbonyls, carboxylic acids, benzene and amines; transition metals; redox equilibria; and analysis techniques.

The course has been revised to ensure that the content extends on prior learning from GCSE, and provides excellent preparation for further study. Opportunities for practical work are clearly sign-posted in the specification. The structure of the course also allows flexibility for co-teaching of AS and A level students.

As well as great chemistry within the specification, there are other ways in which we can help support your teaching on our new A level Chemistry specification. Our free support includes:

- additional sets of question papers

- Results Plus, now with Mock Analysis service

- Exam Wizard, our online bank of past paper questions

- Getting Started Guides, with course planners

- “Getting Ready to Teach” events

- documents to help deliver the mathematics and practical aspects of the specification

- worksheets for each “core practical” in the specification

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Overview of content

|AQA Chemistry (2008) |Edexcel Chemistry (2015) |

|AS Unit 1 (CHEM1) | |

|Foundation Chemistry | |

|3.1.1 Atomic Structure |Topic 1: Atomic Structure and the Periodic Table |

|3.1.2 Amount of Substance |Topic 5: Formulae, Equations and Amounts of Substance |

|3.1.3 Bonding |Topic 2: Bonding and Structure |

|3.1.4 Periodicity |Topic 1: Atomic Structure and the Periodic Table |

|3.1.5 Introduction to Organic Chemistry |Topic 6A: Introduction to organic chemistry |

|3.1.6 Alkanes |Topic 6B: Alkanes |

| | |

|AS Unit 2 (CHEM2) | |

|Chemistry in Action | |

|3.2.1 Energetics |Topic 8: Energetics I |

|3.2.2 Kinetics |Topic 9: Kinetics I |

|3.2.3 Equilibria |Topic 10: Equilibrium I |

|3.2.4 Redox reactions |Topic 3: Redox 1 |

|3.2.5 Group 7(17), the Halogens |Topic 4B: The elements of Group 7 (halogens) |

|3.2.6 Group 2, the Alkaline Earth Metals |Topic 4A: The elements of Groups 1 and 2 |

|3.2.7 Extraction of metals |n/a |

|3.2.8 Haloalkanes |Topic 6D: Halogenoalkanes |

|3.2.9 Alkenes |Topic 6C: Alkenes |

|3.2.10 Alcohols |Topic 6E: Alcohols |

|3.2.11 Analytical Techniques |Topic 7: Modern Analytical Techniques I |

| | |

|AS Unit 3 | |

|Investigative and Practical Skills | |

|Route T / Route X |Now assessed in two ways – directly by teachers and indirectly by |

| |examination papers |

|A level Unit 4 (CHEM4) | |

|Kinetics, Equilibria and Organic Chemistry | |

|3.4.1 Kinetics |Topic 16: Kinetics II |

|3.4.2 Equilibria |Topic 11: Equilibrium II |

|3.4.3 Acids and Bases |Topic 12: Acid-base Equilibria |

|3.4.4 Nomenclature and Isomerism in Organic Chemistry |Topic 6A: Introduction to organic chemistry |

| |Topic 17A: Chirality |

|3.4.5 Compounds containing the Carbonyl Group |Topic 17A: Carbonyl compounds |

| |Topic 17A: Carboxylic acids |

|3.4.6 Aromatic Chemistry |Topic 18A: Arenes - benzene |

|3.4.7 Amines |Topic 18B: Amines, amides, amino acids and proteins |

|3.4.8 Amino acids |Topic 18B: Amines, amides, amino acids and proteins |

|3.4.9 Polymers |Topic 18B: Amines, amides, amino acids and proteins |

|3.4.10 Organic synthesis and Analysis |Topic 19: Modern Analytical Techniques II |

| | |

|A level Unit 5 (CHEM5) | |

|Energetics, Redox and Inorganic Chemistry | |

|3.5.1 Thermodynamics |Topic 13A: Lattice energy |

| |Topic 13B: Entropy |

|3.5.2 Periodicity |n/a |

|3.5.3 Redox Equilibria |Topic 14: Redox II |

|3.5.4 Transition Metals |Topic 15A: Principles of transition metal chemistry |

|3.5.5 Reactions of Inorganic Compounds in Aqueous Solution |Topic 15B: Reactions of transition metal elements |

| | |

|A level Unit 6 | |

|Investigative and Practical Skills | |

|Route T / Route X |Now assessed in two ways – directly by teachers and indirectly by |

| |examination papers |

In-depth comparison

|Edexcel Chemistry (2015) |AQA (2008) |What’s new for you |What do you no longer teach |

|Topic 1: Atomic Structure and the Periodic Table |This topic covers material from the AQA specification|mass spectra of diatomic molecules, including | |

| |topics: |chlorine | |

| |3.1.1 |atomic emission spectra | |

| |3.1.4 |shapes of s and p orbitals | |

| | |trends in physical properties across Period 2 | |

|Topic 2A: Bonding |This topic covers material from the AQA specification|the nature of the covalent bond | |

| |topics: | | |

| |3.1.3 | | |

|Topic 2B: Structure |This topic covers material from the AQA specification| | |

| |topics: | | |

| |3.1.3 | | |

|Topic 3: Redox I |This topic covers material from the AQA specification| | |

| |topics: | | |

| |3.2.4 | | |

|Topic 4A: The elements of Groups 1 and 2 |This topic covers material from the AQA specification|trends in thermal stability of nitrates and | |

| |topics: |carbonates | |

| |3.2.6 |flame tests | |

|Topic 4B: The elements of Group 7 (halogens) |This topic covers material from the AQA specification|chlorine reaction with hot alkali | |

| |topics: | | |

| |3.2.5 | | |

|Topic 4C: Analysis of inorganic compounds |N/A |tests for carbonate, hydrogencarbonate, sulfate and | |

| | |ammonium ions | |

|Topic 5: Formulae, Equations and Amounts of Substance|This topic covers material from the AQA specification|calculations using the Avogadro constant | |

| |topics: |calculations using uncertainties and errors | |

| |3.1.2 | | |

|Topic 6A: Introduction to organic chemistry |This topic covers material from the AQA specification| | |

| |topics: | | |

| |3.1.5 | | |

| |3.4.4 | | |

|Topic 6B: Alkanes |This topic covers material from the AQA specification| | |

| |topics: | | |

| |3.1.6 | | |

|Topic 6C: Alkenes |This topic covers material from the AQA specification| | |

| |topics: | | |

| |3.2.9 | | |

|Topic 6D: Halogenoalkanes |This topic covers material from the AQA specification| | |

| |topics: | | |

| |3.2.8 | | |

|Topic 6E: Alcohols |This topic covers material from the AQA specification|halogenation reactions | |

| |topics: |preparation and purification of an organic liquid | |

| |3.2.10 | | |

|Topic 7A: Mass spectrometry |This topic covers material from the AQA specification| | |

| |topics: | | |

| |3.2.11 | | |

|Topic 7B: Infrared (IR) spectroscopy |This topic covers material from the AQA specification| |connection between global warming and absorption of |

| |topics: | |IR radiation by atmospheric gases |

| |3.2.11 | | |

|Topic 8: Energetics I |This topic covers material from the AQA specification| | |

| |topics: | | |

| |3.2.1 | | |

|Topic 9: Kinetics I |This topic covers material from the AQA specification|calculation of reaction rate from data and graphs | |

| |topics: | | |

| |3.2.2 | | |

|Topic 10: Equilibrium I |This topic covers material from the AQA specification| | |

| |topics: | | |

| |3.2.3 | | |

|Topic 11: Equilibrium II |This topic covers material from the AQA specification|equilibrium constant, Kp and associated calculations | |

| |topics: | | |

| |3.4.2 | | |

|Topic 12: Acid-base Equilibria |This topic covers material from the AQA specification| | |

| |topics: | | |

| |3.4.3 | | |

|Topic 13A: Lattice energy |This topic covers material from the AQA specification| | |

| |topics: | | |

| |3.5.1 | | |

|Topic 13B: Entropy |3 This topic covers material from the AQA |use of ΔStotal = ΔSsystem + ΔSsurroundings | |

| |specification topics: |use of ΔG = –RTlnK | |

| |3.5.1 | | |

|Topic 14: Redox II |This topic covers material from the AQA specification| |rechargeable cells |

| |topics: | | |

| |3.5.3 | | |

|Topic 15A: Principles of transition metal chemistry |This topic covers material from the AQA specification| | |

| |topics: | | |

| |3.5.4 | | |

|Topic 15B: Reactions of transition metal elements |This topic covers material from the AQA specification| |reactions of Al3+ ions |

| |topics: | | |

| |3.5.5 | | |

|Topic 16: Kinetics II |This topic covers material from the AQA specification|use of rate equations to provide evidence for SN1 and| |

| |topics: |SN2 mechanisms | |

| |3.4.1 |use of the Arrhenius method (graphical) to find the | |

| | |activation energy for a reaction | |

|Topic 17A: Chirality |This topic covers material from the AQA specification| | |

| |topics: | | |

| |3.4.4 | | |

|Topic 17B: Carbonyl compounds |This topic covers material from the AQA specification|use of LiAlH4 |use of NaBH4 |

| |topics: |reactions with 2,4-dinitrophenylhydrazine and iodine | |

| |3.4.5 | | |

|Topic 17C: Carboxylic acids |This topic covers material from the AQA specification|reactions with LiAlH4 and PCl5 | |

| |topics: | | |

| |3.4.5 | | |

|Topic 18A: Arenes - benzene |This topic covers material from the AQA specification|Friedel-Crafts alkylation reactions | |

| |topics: |the bromination of phenol | |

| |3.4.6 | | |

|Topic 18B: Amines, amides, amino acids and proteins |This topic covers material from the AQA specification| | |

| |topics: | | |

| |3.4.7 | | |

| |3.4.8 | | |

| |3.4.9 | | |

|Topic 18C: Organic Synthesis |This topic covers material from the AQA specification|use of Grignard reagents | |

| |topics: | | |

| |3.4.10 | | |

|Topic 19A: Mass Spectrometry |This topic covers material from the AQA specification| | |

| |topics: | | |

| |3.4.11 | | |

|Topic 19B: Nuclear magnetic resonance (NMR) |This topic covers material from the AQA specification| | |

| |topics: | | |

| |3.4.11 | | |

|Topic 19C: Chromatography |This topic covers material from the AQA specification| | |

| |topics: | | |

| |3.4.11 | | |

| | | |extraction of metals |

Note: a number of the areas highlighted as “What’s new for you” will also be additional content in the revised AQA 2015 Chemistry A level.

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