AQA and OCR A
A-level chemistry calculations
Pick the calculation you want to practise.
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Moles & amount of substanceStoichiometry, gases, formulae and yield
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Titration questionsCalculations, results and practical skills
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Back titrationAcid–base and redox
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Acid–base calculationsAQA and OCR A Year 13
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Isotopes & mass spectrometryAᵣ, abundance, spectra and hard algebra
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TOF mass spectrometryAQA Year 12
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Ideal gas equationPV = nRT
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Rates
KineticsRate evidence, Arrhenius and Maxwell–Boltzmann
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Kinetics exam setsLinked rate, Arrhenius and explanation questions
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Rate equation questionsOrders, k and units
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Rate Order DetectiveOrders from evidence
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Arrhenius equation & plotsk, Ea, ln k against 1/T and OCR A intercepts
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Boltzmann questions & simulatorTemperature, catalysts and exam graphs
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Equilibrium and energetics
EquilibriumKc, Kp, partial pressure and equilibrium response
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Kc & Kp calculationsLinked calculations with diagnostic feedback
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Kc & Qc simulatorExpressions and equilibrium response
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Hess lawYear 12 cycles and enthalpy calculations
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ThermodynamicsYear 13 entropy, Gibbs and ionic energetics
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Born–Haber cyclesYear 13 / full A-level only
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Lattice, hydration & solutionYear 13 ionic energetics
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