Chemistry 9701/05 Oct Nov 2006 | Cambridge AS Level Past Papers With Mark Scheme

1. Determining the concentration of sulfuric acid by thermometric titration with sodium hydroxide (NaOH), using temperature measurements and calculation of the temperature rise to estimate the reaction's enthalpy change.
2. Analysis of the thermal decomposition of minerals such as azurite and malachite, including writing balanced equations, describing experimental procedures, and determining the identity of the mineral based on mass changes during decomposition.
3. Calculation of the enthalpy change for the reaction between sodium hydroxide and sulfuric acid, including determining which reactant is in excess and using the heat released during the reaction to calculate enthalpy changes.
4. Exploring experimental methods for determining the decomposition products of minerals and using the measurements to distinguish between azurite and malachite, including the suggestion of further measurements with additional apparatus to confirm the identity of the sample.