Chemistry 9701/41 Oct Nov 2019 | Cambridge AS Level Past Papers With Mark Scheme

1. Electrochemical cells: Material identification for electrode half-cells, Nernst equation application, and calculation of cell potential; understanding of cell reactions and aluminium extraction.
2. Reaction kinetics: Rate laws and their implications for reaction rates, understanding units of rate constants, and the effects of reaction order on rate equations.
3. Thermodynamics: Entropy changes, Gibbs free energy, and conditions for spontaneous reactions; understanding and calculating reaction spontaneity at different temperatures.
4. Organic chemistry and mechanisms: Nucleophilic substitution, reaction mechanisms involving aromatic compounds like phenylethanone, and polyamide/polyester synthesis.
5. Spectroscopy and analysis: Proton NMR, mass spectra interpretation, and functional group identification through NMR shifts and fragmentation patterns.
6. Polymer chemistry: Condensation polymerization mechanisms, functional group reactivity, and predictions of polymer structures based on monomer reactivity.
7. Transition metal chemistry: Coordination numbers, isomerism in metal complexes, and the role of ligands in determining color and structure of transition metal complexes.