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Chemistry · AQA 7405 · Paper 1 · June 2018

AQA A Level Chemistry Paper 1 June 2018 examiner report (7405/1)

2h 105 marks

Materials
Data booklet

Examiner report

  1. Q1 - 6 marks - Born-Haber cycles and lattice enthalpy
  2. Q2 - 9 marks - Equilibrium constant Kp
  3. Q3 - 11 marks - Amounts of substance in equations, Entropy and Gibbs free energy, Oxidation states, Transition metal catalysts
  4. Q4 - 18 marks - Amounts of substance in equations, Group 2: the alkaline earth metals, Isotopes and relative atomic mass, Moles and amount of substance, Sub-shells, orbitals and electron configuration
  5. Q5 - 15 marks - Buffer solutions, Period 3 elements and their oxides, The ionic product of water, Kw, Weak acids and Ka
  6. Q6 - 6 marks - Electrode potentials and electrochemical cells
  7. Q7 - 9 marks - Bronsted-Lowry acids and bases, Metal-aqua ions in solution
  8. Q8 - 17 marks - Crystal structures and physical properties, Moles and amount of substance, Period 3 elements and their oxides, Shapes of molecules and ions, The ideal gas equation
  9. Q9 - 7 marks - Amounts of substance in equations, Electrode potentials and electrochemical cells, Oxidation states, Shapes of complex ions, Transition metal catalysts
  10. Q10 - 7 marks - Amounts of substance in equations, Moles and amount of substance