GCSE Chemistry Topic 3: Quantitative Chemistry, Moles and Calculations (One-Page Sheet)

Part of All of GCSE Chemistry on 11 Sheets, the free examiner-made series. Made by Fiaraz Iqbal, Former Headteacher & Examiner. Works for AQA, Edexcel and OCR.

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← Topic 2: Bonding, Structure and PropertiesTopic 4: Chemical Changes →

Frequently asked questions

What is the moles formula at GCSE?

Moles = mass in grams divided by relative formula mass (Mr).

How do you calculate percentage yield?

Percentage yield = actual yield divided by theoretical yield, multiplied by 100.

The rest of the series

Annotated Periodic TableGroups, ions, reactivity, formulae and Mr in one annotated table.Topic 1: Atoms, Elements and MixturesAtomic structure, isotopes, electron shells and separation techniques.Topic 2: Bonding, Structure and PropertiesIonic, covalent and metallic bonding and how structure explains properties.Topic 4: Chemical ChangesReactivity series, acids, salts, pH and electrolysis.Topic 5: Energy ChangesExo/endothermic reactions, reaction profiles, bond energies and cells.Topic 6: Rates and EquilibriumCollision theory, catalysts, reversible reactions and equilibrium.Topic 7: Organic ChemistryCrude oil, alkanes, alkenes, alcohols, acids and polymers.Topic 8: Chemical AnalysisPurity, chromatography, gas tests and ion tests.Topic 9: Chemistry of the AtmosphereAtmosphere evolution, greenhouse effect and pollutants.Topic 10: Using ResourcesPotable water, LCA, recycling, alloys, Haber process and fertilisers.

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