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Chemistry · AQA 7405 · Paper 1 · June 2019

AQA A Level Chemistry Paper 1 June 2019 examiner report (7405/1)

2h 105 marks

Materials
Data booklet

Examiner report

  1. Q1 - 9 marks - Born-Haber cycles and lattice enthalpy, Entropy and Gibbs free energy
  2. Q2 - 10 marks - Isotopes and relative atomic mass, Moles and amount of substance
  3. Q3 - 7 marks - Amounts of substance in equations, Electronegativity and bond polarity, Period 3 elements and their oxides, Periodicity and Period 3 trends
  4. Q4 - 14 marks - Ligand substitution reactions, Metal-aqua ions in solution, Shapes of complex ions
  5. Q5 - 13 marks - Group 7: the halogens, Oxidation states
  6. Q6 - 16 marks - Coloured transition metal ions, Oxidation states, Sub-shells, orbitals and electron configuration, The ideal gas equation, Variable oxidation states of transition metals
  7. Q7 - 10 marks - Amounts of substance in equations, Equilibrium constant Kp
  8. Q8 - 11 marks - Intermolecular forces, Shapes of molecules and ions
  9. Q9 - 15 marks - Buffer solutions, pH calculations, pH curves and indicators, The ionic product of water, Kw, Weak acids and Ka