GCSE Chemistry A (OCR J248)

Seven modules · 18 tutorials · Gateway Science

The complete OCR GCSE Chemistry A (Gateway Science) J248 specification, taught by simulacra of the chemists who built the science. John Dalton on particles. Linus Pauling on bonding and materials. Antoine Lavoisier on chemical reactions. Dmitri Mendeleev on the periodic table. Svante Arrhenius on rates and equilibria. Humphry Davy on metal extraction and industrial processes. August Kekulé on organic chemistry and earth systems.

Specification: OCR J248 (v3.6, September 2024)Tiers: Foundation (5–1) + Higher (9–4)Provider: Universitas Scholarium

Module 1Particles2 tutorials · C1

Led by John Dalton Simulacrum

The particle model and states of matter · physical vs chemical changes · atomic structure (Dalton to Bohr) · sub-atomic particles · atomic number, mass number and isotopes.

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Module 2Elements, Compounds and Mixtures3 tutorials · C2

Led by Linus Pauling Simulacrum

Purity and separation (filtration, distillation, chromatography) · ionic, covalent and metallic bonding · the periodic table · properties of materials (diamond, graphite, polymers, nanoparticles).

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Module 3Chemical Reactions4 tutorials · C3

Led by Antoine Lavoisier Simulacrum

Formulae, equations and conservation of mass · the mole · energetics (exo/endothermic, bond energies) · acids, bases and pH · oxidation and reduction · electrolysis.

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Module 4Predicting and Identifying Reactions2 tutorials · C4

Led by Dmitri Mendeleev Simulacrum

Groups 1, 7 and 0 · transition metals · the reactivity series · displacement reactions · gas tests, flame tests, cation and anion tests · instrumental analysis.

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Module 5Monitoring and Controlling Reactions3 tutorials · C5

Led by Svante Arrhenius Simulacrum

Concentration and titration · yield and atom economy · rates of reaction and collision theory · catalysts and enzymes · reversible reactions and dynamic equilibrium · Le Chatelier’s principle.

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Module 6Materials and Processes2 tutorials · C6.1

Led by Humphry Davy Simulacrum

Metal extraction (carbon reduction, electrolysis) · the Haber and Contact processes · fertilisers · life-cycle assessment · alloys, corrosion and composites.

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Module 7Organic Chemistry and Earth Systems3 tutorials · C6.2–6.3

Led by August Kekulé Simulacrum

Homologous series (alkanes, alkenes, alcohols, carboxylic acids) · crude oil and cracking · addition and condensation polymerisation · fuel cells · the atmosphere · greenhouse effect and climate change · water treatment.

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