Chemistry 9701/36 Oct Nov 2014 | Cambridge AS Level Past Papers With Mark Scheme

1. Determination of sodium thiosulfate concentration using titration with iodine, stoichiometric relationships for iodate and thiosulfate reactions, and molarity calculations for \\( \\text{Na}_2\\text{S}_2\\text{O}_3 \\).

2. Investigation of reaction rates between iodide and peroxodisulfate ions, measurement of reaction times using starch indicators, and analysis of proportional relationships between rate and peroxodisulfate volume.

3. Qualitative analysis of aqueous and solid compounds using silver nitrate, sodium hydroxide, and sulfuric acid tests, identification of common cations and anions, and observations of oxidation state changes in magnesium.

4. Modifications for experiments to assess the impact of iodide ion concentration on reaction rates, including adjustments in reagent volumes and concentrations.

5. Analysis of qualitative test results for elements in FB compounds using periodic trends and solubility properties for identification.

6. Application of quantitative and qualitative analysis techniques to interpret redox reactions, rate laws, and elemental properties from experimental data.