Chemistry 9701/32 May June 2016 | Cambridge AS Level Past Papers With Mark Scheme

1. Determination of magnesium's relative atomic mass using gas evolution in a reaction with sulfuric acid and subsequent titration analysis.
2. Experimental titration techniques, including precise endpoint determination using bromophenol blue and sodium hydroxide.
3. Calculation steps for stoichiometry, moles of gas, and sulfuric acid reaction with magnesium for accurate relative atomic mass evaluation.
4. Qualitative analysis of cations and anions through color changes, precipitate formation, solubility testing, and gas evolution.
5. Systematic identification of compounds using chemical observations and reference qualitative analysis notes.
6. Experimental error analysis with suggestions for procedural accuracy improvements and percentage error calculations for magnesium's relative atomic mass.