Chemistry 9701/33 Oct Nov 2014 | Cambridge AS Level Past Papers With Mark Scheme

1. Calculation of reaction enthalpies using Hess's Law for Cu and Mg reactions with H₂SO₄ and CuSO₄, temperature change analysis, energy transfer in solution.
2. Graphical representation of reaction temperature profiles, extrapolation to determine temperature changes, enthalpy change precision.
3. Factors affecting accuracy in calorimetry experiments, solutions for reducing heat loss, impact of solution volume on reaction measurements.
4. Qualitative ion analysis using reagents like HCl, KI, NH₃, and NaOH, identification of cations (NH₄⁺, Cu²⁺) and anions (NO₃⁻, SO₄²⁻), solubility and gas evolution.
5. Reactions of FA samples with heat, acids, and specific reagents, formation and dissolution of precipitates, observations for identification tests.