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  1. P

    Paper 53 Nov2011 chemistry answer discussion!!!!

    I hope there is just one mark was deducted :S hmm I actually have three anamolous point. Point 3,4 and 8..3 and 4 is actually quite near so I put them together with one explanation for them..>.< and my explanation was err...decomposition is not completed..and for point 8 is like..Erm....so solid...
  2. P

    Paper 53 Nov2011 chemistry answer discussion!!!!

    Yupe I got Pb3O4..I'm able to get the answer all from my graph..but it is actually wrong..coz my number of moles of oxygen is wrong..:S
  3. P

    Paper 53 Nov2011 chemistry answer discussion!!!!

    Question one was still okay but average only..I hope there is ecf for my question 2 by using the wrong table..:S
  4. P

    Chemistry Paper 23

    So I think I comfirm lost 8 marks dy..hopefully the ionisation that part I got all correct..not afford to lose any marks anymore..bless u can score A too :) my fren score A A C, C for paper 1 last time and both A for paper 2 and 3 still able to score an a in AS..so paper 2 is really important :)
  5. P

    Chemistry Paper 23

    No. :( yea,it is quite confusing when come to the number of moles. I think I only gain marks for the mass of carbon and hydrogen. Izzit 0.36g for carbon? And the empirical formula for B is C4H8O right?
  6. P

    Paper 53 Nov2011 chemistry answer discussion!!!!

    Opps! The second question, I divide the number of moles of oxygen atoms by (2X16) instead of just 16. I plotted the graph and I got the answer correct. But the comment on the graph is wrong since my table is wrong, which mean my y-axis also wrong. So my question 2 gone :'(
  7. P

    Chemistry Paper 23

    46-48 is so high! :( the question 2, for calculation part how many marks all together? God bless me...
  8. P

    Chemistry Paper 23

    how was the chemistry paper 23? I lost 4 marks due to careless mistakes in organic compound! and with some other marks in front, i guess i lost about 8 marks dy.. some still unknown..can i still get A? :( btw, im a retake candidate ..i shouldnt do any careless mistake :( so sad!!!!
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