5068/Chemistry Paper 03 Practical

• Orange*Asterisk

  27 Oct 06, 21:56

  31/10/2006
  tips to share?
• Classyfied

  29 Oct 06, 09:18

  my teacher say will come out kmno4...
  
  actually all the teachers already know of the pratical questions liao...juz that they dun want to say
• sgboy2004

  29 Oct 06, 09:23

  Originally posted by Classyfied:

  my teacher say will come out kmno4...
  
  actually all the teachers already know of the pratical questions liao...juz that they dun want to say

  yah...cos the lab pple got to prepare the reagents... and from there, they will have an idea of the test items liao
  
  go bride your chem cher lah
• Classyfied

  29 Oct 06, 09:24

  Originally posted by sgboy2004:

  yah...cos the lab pple got to prepare the reagents... and from there, they will have an idea of the test items liao
  
  go bride your chem cher lah

  i tomolo go back take hcl exam i go find her...
• Orange*Asterisk

  29 Oct 06, 11:33

  lai arh lai arh! KMnO4 test for SO2. Maybe SO2 also coming out.
• Orange*Asterisk

  30 Oct 06, 20:09

  tmr is the paper!
• jaydunkfull

  30 Oct 06, 21:20

  i totally havent study! and im already so tired, no energy to study ler somebody help me!
• jaydunkfull

  30 Oct 06, 21:21

  how to study for chem pract?
• jaydunkfull

  31 Oct 06, 13:47

  really come out kmno4! a bad thing too, cos its difficult read off the volume anyway, the titration value should be about 25.5-25.7 right? and for qa did y'all get a lot of pale yellow ppt for the observation part?
• Orange*Asterisk

  31 Oct 06, 14:42

  Originally posted by jaydunkfull:

  really come out kmno4! a bad thing too, cos its difficult read off the volume anyway, the titration value should be about 25.5-25.7 right? and for qa did y'all get a lot of pale yellow ppt for the observation part?

  i got 26 for my titration..zzz
• vice_edge

  31 Oct 06, 16:19

  my teachers say ans is 20.7 ~ 21.1.. extension was easy whee.. my titration all 3 reading 21.1 ha
• Classyfied

  31 Oct 06, 16:42

  UP THERE
  
  wtf man......
  
  20.1???
  
  my teachers say its 25.2 the correct ans..i got 25.4...heng in range can get full marks. =DDD
• TwinTurbo_Supra

  31 Oct 06, 18:16

  i got 25.6 leh.
  
  those who got 21 plus use the 20cm^3 pipette.
• TwinTurbo_Supra

  31 Oct 06, 18:18

  Originally posted by jaydunkfull:

  really come out kmno4! a bad thing too, cos its difficult read off the volume anyway, the titration value should be about 25.5-25.7 right? and for qa did y'all get a lot of pale yellow ppt for the observation part?

  dammit my QA all those pale yellow i say white sia.
  
  but the tests for R 5 marks only leh.
  the ppt come out quite lag so i just wrote it there to play safe.
• gohby

  1 Nov 06, 00:32

  Originally posted by Classyfied:

  UP THERE
  
  wtf man......
  
  20.1???
  
  my teachers say its 25.2 the correct ans..i got 25.4...heng in range can get full marks. =DDD

  Fantastic.
  
  I got 25.3
• eroticism

  1 Nov 06, 07:22

  my school use 20cm^3 pipette so the answer is 20.2cm^3 of kmno4
• threeseven

  2 Nov 06, 02:15

  there is no such thing as a CORRECT answer. the reason why you guys got different answers is due to different conditions.that's why your teachers have to do it too.your classes' answers will be marked with respect to your following teacher's results...