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Recent content by Evil_Maknae

  1. E

    PHYSICS P 12. HOW WAS IT??

    Yeah I got uncertainty 3 % for the alpha particle, I think i chose C...
  2. E

    PHYSICS P 12. HOW WAS IT??

    I chose the one with nucleons lost at a rate of 400/s. Which one was that? C?
  3. E

    Physics P1, P2 & P4 past papers chapter wise! :D

    Thanks (y)
  4. E

    Physics P1, P2 & P4 past papers chapter wise! :D

    Can someone inbox me the password? I registered but I cant comment on the threads :confused:
  5. E

    How was Chemistry P42

    It said in the question that the Mn04- ions reconverted the Fe2+ left to Fe3+ and that was the partially used solution
  6. E

    How was Chemistry P42

    I think we has to use the concentration of the partially used solution and not the original concentration
  7. E

    How was Chemistry P42

    Haha reallly? Remember any other question?
  8. E

    How was Chemistry P42

    I wrote the same reason too *high five* :) You got what for the Ksp and the [Ag+] ?
  9. E

    How was Chemistry P42

    I think I wrote suspect 1... You?
  10. E

    How was Chemistry P42

    Yeah I did
  11. E

    How was Chemistry P42

    I calculated the no of moles of Fe2+/Fe3+ using the concentration and got 0.06 mol. Since mole ratio of Cu to Fe3+ is 1 : 2 , I divided 0.06 by 2 and got no of moles of Cu 0.03 mol. Then mass of Copper = 0.03 * 63.5 = 1.91 g Can someone else confirm this ?
  12. E

    How was Chemistry P42

    Something like 1.91 g
  13. E

    Chemistry Practical 26th Oct - How was it?

    You're right... It's in the past (y)
  14. E

    Chemistry Practical 26th Oct - How was it?

    Really??? All students in my centre had their graph passing through the origin and with points near or on the line.
  15. E

    Chemistry Practical 26th Oct - How was it?

    I used the total volume (70 cm3) to calculate the concentration as it said reaction mixture in the question. Do you think that would be right? :confused:
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