pH curves


download AQA PSA 15


A2 Inorganic Chemistry experiments

Task Possible context
Carry out a redox titration The analysis of iron tablets by titration using acidified potassium manganate(VII)
Investigate the chemistry of transition metal compounds in a series of experiments The chemistry of copper compounds
Prepare an inorganic complex The preparation of hexaamminecobalt(III) chloride or the preparation of iron(II) ethandioate

A2 Physical Chemistry experiments

Task Possible context
Carry out a kinetic study to determine the order of a reaction An iodine clock experiment e.g. the reaction of sulfite ions with iodate(V) ions
Determine an equilibrium constant Determine a value of Kc for the reaction of ethanol with ethanoic acid.
Investigate how pH changes when a weak acid reacts with a strong base or when a strong acid reacts with a weak base. Determine the pH curve for ethanoic acid reacting with sodium hydroxide

A2 Organic Chemistry experiments

Task Possible context
Prepare a solid organic compound The preparation of aspirin
Purify an organic solid The recrystallisation of impure benzenecarboxylic acid from hot water
Test the purity of an organic solid Determine the melting point of benzenecarboxylic acid