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Chemistry A · OCR H432 · Periodic table, elements and physical chemistry · June 2022

OCR A Level Chemistry A Periodic table, elements and physical chemistry June 2022 examiner report (H432/01)

2h 15m 100 marks

Examiner report

  1. Q1 - 1 mark - Identification of ions
  2. Q2 - 1 mark - Amounts of substance in equations
  3. Q3 - 1 mark - Amounts of substance in equations
  4. Q4 - 1 mark - Redox titrations
  5. Q5 - 1 mark - Moles and amount of substance
  6. Q6 - 1 mark - Oxidation states
  7. Q7 - 1 mark - Bond energy calculations
  8. Q8 - 1 mark - Rate equations and orders of reaction
  9. Q9 - 1 mark - Born-Haber cycles and lattice enthalpy
  10. Q10 - 1 mark - Entropy and Gibbs free energy
  11. Q11 - 1 mark
  12. Q12 - 1 mark - Bronsted-Lowry acids and bases
  13. Q13 - 1 mark - Electrode potentials and electrochemical cells
  14. Q14 - 1 mark - Electronegativity and bond polarity
  15. Q15 - 1 mark - Sub-shells, orbitals and electron configuration, Transition metals
  16. Q16 - 10 marks - Determining orders of reaction, Maxwell-Boltzmann distribution, Rate equations and orders of reaction, Rate-determining step and mechanisms
  17. Q17 - 14 marks - Amounts of substance in equations, Calorimetry, Enthalpy changes, Entropy and Gibbs free energy, Hess's law
  18. Q18 - 9 marks - Ionisation energies, Moles and amount of substance
  19. Q19 - 14 marks - pH calculations, Titrations
  20. Q20 - 8 marks - Equilibrium constant Kc, Equilibrium constant Kp, The effect of changing conditions on equilibrium
  21. Q21 - 14 marks - Amounts of substance in equations, Atoms, elements and compounds, Group 2: the alkaline earth metals, Oxidation and reduction in terms of electrons, pH calculations, Reactions of acids
  22. Q22 - 16 marks - Amounts of substance in equations, Complex ions and ligands, Dative covalent bonds, Electrode potentials and electrochemical cells, Ligand substitution reactions, Metal-aqua ions in solution, Oxidation and reduction in terms of electrons, Redox equations, Shapes of complex ions, Variable oxidation states of transition metals