Copy of ACSBR 6092 Sec 4 Prelims 2024 P3 preplist

1 2023 6092 EOY SEC 4 PAPER 3 PREPARATION LIST – Jasmine Zheng Overview S/N Apparatus/Chemical S/N Apparatus/Chemical 1 250 cm3 of 1.50 mol/dm3 aqueous hydrochloric acid solution, labelled solution P 15 Bench reagents of (i) aqueous sodium hydroxide solution, (ii) aqueous nitric acid solution, (iii) aqueous silver nitrate and (iv) limewater 2 120 cm3 of 0.700 mol/dm3 aqueous sodium carbonate solution, labelled solution Q (prepared by dissolving ~200.2 g of solid Na2CO3.10H2O in 1000 dm3 of de-ionised water) 16 1 × thermometer, covering the range 0°C to 100°C graduated in degrees Celsius 3 5 g of solid anhydrous sodium carbonate in a covered transparent plastic container, labelled sample X 17 1 x 100 cm3 measuring cylinder 4 2 g of solid nickel(II) chloride in a test-tube, labelled sample Y 18 1 x 250 cm3 glass beaker 5 Methyl orange indicator 19 1 × large Styrofoam cup 6 1 × 50 cm3 burette 20 1 × digital stopwatch 7 1 × burette clamp and the retort stand 21 3 × test-tubes 8 1 × 25.0 cm3 pipette 22 1 x delivery tube 9 1 × pipette filler 23 1 x lighter 10 1 × filter funnel 24 1 x test-tube holder 11 1 × white tile 25 safety goggles 12 1 × clean dropper 26 wooden splints 13 1 × 250 cm3 conical flask 27 litmus paper (both blue and red) 14 1 × bottle of de-ionised water 28 weighing balance 29 access to paper towels

2 For Question 1 In addition to the fittings ordinarily contained in a chemical laboratory, the apparatus and materials specified below will be necessary. Each candidate will need the following: (a) 100 cm3 of 1.50 mol/dm3 aqueous hydrochloric acid solution, labelled solution P (similar concentration for Question 2 as well); (b) 120 cm3 of 0.700 mol/dm3 aqueous sodium carbonate solution, labelled solution Q (prepared by dissolving ~200.2 g of solid Na 2CO3.10H2O in 1000 dm3 of de-ionised water); (c) Methyl orange indicator; (d) 1 × 50 cm3 burette; (e) 1 × burette clamp and the retort stand; (f) 1 × filter funnel; (g) 1 × white tile; (h) 1 × clean dropper; (i) 1 × 25.0 cm3 pipette; (j) 1 × pipette filler; (k) 1 × 250 cm3 conical flask; (l) 1 × bottle of de-ionised water; (m) safety goggles and (n) access to paper towels 25.0 cm3 of solution Q should require the addition of between 22.00 – 24.00 cm3 of the solution P from burette at equivalence point.

3 For Question 2 In addition to the fittings ordinarily contained in a chemical laboratory, the apparatus and materials specified below will be necessary. Each candidate will need the following: (a) 5 g of solid anhydrous sodium carbonate in a covered transparent plastic container, labelled sample X; (b) 150 cm3 of 1.50 mol/dm3 aqueous hydrochloric acid solution, labelled solution P (similar concentration for Question 1 as well); (c) 1 x 100 cm3 measuring cylinder; (d) 1 x 250 cm3 glass beaker; (e) 1 × large Styrofoam cup; (f) 1 x glass rod; (g) 1 × thermometer, covering the range 0°C to 100°C graduated in degrees Celsius; (h) 1 × digital stopwatch; (i) 1 × bottle of de-ionised water; (j) weighing balance; (k) safety goggles and (l) access to paper towels When solid X is added to 100 cm3 of hydrochloric acid, there should be a measurable temperature rise.

4 For Question 3 In addition to the fittings ordinarily contained in a chemical laboratory, the apparatus and materials specified below will be necessary. Each candidate will need the following: (a) 2 g of solid nickel(II) chloride in a test-tube, labelled sample Y; (b) Bench reagents of (i) aqueous sodium hydroxide solution, (ii) aqueous nitric acid solution, (iii) aqueous silver nitrate and (iv) limewater; (c) 2 × test-tubes; (d) 1 × glass rod; (e) 1 x delivery tube; (f) 1 x lighter; (g) 1 x test-tube holder; (h) 1 × bottle of de-ionised water; (i) wooden splints; (j) litmus paper (both blue and red); (k) safety goggles and (l) access to paper towels