Page 420 - SUBSEC October 2017_Neat
P. 420
02112032/CAPE/SPEC/MS/2017
- 3 –
CHEMISTRY
UNIT 1 — PAPER 032
MARK SCHEME
KC UK XS
(f) # of Moles KMnO4 reacted = 0.0025÷5 = 0.0005 moles [1 mark] 2
# of Moles KMnO4 in 1 dm
3
= 0.0005 moles ÷ candidate’s average volume x 1000
[1 mark]
(g) (i) NH3 (aq), NaOH (aq) [2 marks] 2
(ii) Green ppt. [1 mark] 1
Total 15 marks 5 10
