RI_H2_CHEM_P4_Preparation_List.pdf

RI_H2_CHEM_P4_Preparation_List.pdf - Raffles Institution...

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-1- Raffles Institution Year 6 H2 Chemistry 2017 Preparation List for Prelim Practical Exam Label Quantity (per shift per student) Chemical Remarks FA1 4g (per student) CuSO 4 5H 2 O(s) hydrated copper sulfate FA2 160 cm 3 0.05 mol dm -3 sodium thiosulfate, Na 2 S 2 O 3 FA3 100 cm 3 1.0 mol dm 3 Potassium Iodide, K I FA5 50 cm 3 0.02 mol dm 3 Potassium persulfate, K 2 S 2 O 8 FA6 80 cm 3 0.02 mol dm 3 Iodine solution, I 2 Starch 20 cm 3 2 % starch FA7 1 small bottle ( 30 cm 3 ) 0.5M Iron (III) sulfate 20g iron(III) sulfate (M r =399) in 100ml deionised water (0.5M), warm to dissolve. FA8 1 vial Zn powder FA1-6 5 spare bottles per lab to be provided on teachers’ bench.
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