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Chemistry A · OCR H432 · Periodic table, elements and physical chemistry · June 2018

OCR A Level Chemistry A Periodic table, elements and physical chemistry June 2018 examiner report (H432/01)

2h 15m 100 marks

Examiner report

  1. Q1 - 1 mark - Mass spectrometry
  2. Q2 - 1 mark - Oxidation states
  3. Q3 - 1 mark - Moles and amount of substance
  4. Q4 - 1 mark - Titrations
  5. Q5 - 1 mark - Ionisation energies
  6. Q6 - 1 mark - Properties of ionic compounds
  7. Q7 - 1 mark - Identification of ions, Properties of ionic compounds
  8. Q8 - 1 mark - Determining orders of reaction
  9. Q9 - 1 mark - Equilibrium constant Kp
  10. Q10 - 1 mark - pH calculations
  11. Q11 - 1 mark - Entropy and Gibbs free energy
  12. Q12 - 1 mark - Fuel cells
  13. Q13 - 1 mark - Bond energy calculations, Born-Haber cycles and lattice enthalpy, Enthalpy changes
  14. Q14 - 1 mark - Maxwell-Boltzmann distribution
  15. Q15 - 1 mark - Shapes of complex ions
  16. Q16 - 15 marks - Bond energy calculations, Enthalpy of solution and hydration
  17. Q17 - 11 marks - Determining orders of reaction, Rate equations and orders of reaction, Rate-determining step and mechanisms, The Arrhenius equation
  18. Q18 - 10 marks - Equilibrium constant Kc, Equilibrium constant Kp, The effect of changing conditions on equilibrium
  19. Q19 - 11 marks - Amounts of substance in equations, Covalent bonding, pH calculations, Weak acids and Ka
  20. Q20 - 20 marks - Empirical formulae, Group 7: the halogens, Redox titrations
  21. Q21 - 18 marks - Electrode potentials and electrochemical cells, Empirical formulae, Ligand substitution reactions, Redox equations, Shapes of complex ions, Transition metals, Variable oxidation states of transition metals