All papers

Chemistry A · OCR H432 · Periodic table, elements and physical chemistry · June 2023

OCR A Level Chemistry A Periodic table, elements and physical chemistry June 2023 examiner report (H432/01)

2h 15m 100 marks

Examiner report

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