Chemistry 9701/53 May June 2022 | Cambridge AS Level Past Papers With Mark Scheme

1. Calculating the mass of NaCl required to prepare 250 cm³ of 0.200 mol/dm³ NaCl solution.
2. Describing the accurate weighing of NaCl using the weighing by difference technique.
3. Detailed procedure for preparing 250.0 cm³ of 0.200 mol/dm³ NaCl solution using various laboratory apparatus.
4. Suggestions for improving the experimental method and calculating the percentage error in volume measurements.
5. Using graphical analysis to determine the molar ratio of NaCl and lead compound that produces the maximum mass of precipitate.
6. Identifying the formula of the precipitate based on experimental results.