13003.02 4 [Turn over Question 2 • solid potassium iodide labelled X (which should be carried over from question 1) • 1 × thermometer (capable of reading between 0 and 50 °C clearly to nearest whole number) • 1 × 50 cm3 measuring cylinder • 1 × polystyrene cup • 1 × spatula • 1 × 250 cm3 beaker • 4 × weighing boats • 1 × wash bottle of deionised water • 1 × marker for labelling weighing boats • access to an electronic balance (accurate to at least 1 decimal place) 13003.03 [Turn over ADVANCED SUBSIDIARY (AS) General Certificate of Education 2022 Chemistry Assessment Unit AS 3 Practical Assessment Practical Booklet A [SCH31] MONDAY 9 MAY, MORNING Confidential Instructions to the Supervisor of the Practical Examination