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Recent content by karishma92

  1. K

    Chemistry: Post your doubts here!

    5 Given the following enthalpy changes, I2(g) + 3Cl2(g) → 2ICl3(s) ΔHo = –214 kJ mol–1 I2(s) → I2(g) ΔHo = +38 kJ mol–1 What is the standard enthalpy change of formation of iodine trichloride, ICl3(s)? A +176 kJ mol–1 B –88 kJ mol–1 C –176 kJ mol–1 D –214 kJ mol–1
  2. K

    Biology p22..How was it??

    wat were da difference b/w replication and trncription??
  3. K

    nust entry... help

    thankis a lot every one :)
  4. K

    how was chem paper 33??

    mmmm i dont fink so
  5. K

    any idea????

    duhhh nooo!!! i thought if they could post da pprs soon after da exams it would be easy for me to predict my grade and mistakes :P :P
  6. K

    how was chem paper 33??

    Q 2 : for FA3 FA4 and FA5 i used hydrochloric acid FA3 suphite FA4 carbonate FA5 sulphate FA6 ammonia and reagent was sodium hydroxide :/ i only wrote these so is dis right??? Q 1 : temp change was 11 and volume for FA1 was 25 so to find da heat energy i used 4.3x11x25 and for da 2nd...
  7. K

    how was chem paper 33??

    i got 11 i guess :/
  8. K

    Practical Phy 33 oct/nov 2011..

    i used h2SO4
  9. K

    how was chem paper 33??

    every one got different temp change...
  10. K

    nust entry... help

    if i complete my AS and apply to nust for medical.. is dis possible cx dere nust site dey said dat when u recieve ur AS result u should apply to nust for entry test.. but there is a prblm dat in AS i only took bio, phy and chem not Math sooo i wont have a second option.. tell me da wat should i...
  11. K

    any idea????

    ok.. thanks a lot
  12. K

    how was chem paper 33??

    wat did u guys get for FA3, FA4, FA5, and FA6???
  13. K

    Practical Phy 33 oct/nov 2011..

    well fa3 was sulphite, fa4 was carbonate, fa5 was sulphate and fa6 was ammonium.. i think :/
  14. K

    any idea????

    how much time later does xtreme papers site upload the papers of oct/nov 2011...???
  15. K

    Chemistry: Post your doubts here!

    1 You are provided with the following. FB 1, 3.00 mol dm–3 hydrochloric acid, HCl Three tubes containing different mixtures of sodium carbonate, Na2CO3, and sodium hydrogencarbonate, NaHCO3, each with a total mass of 5.00 g of mixture. tube labelled mass of Na2CO3 / g mass of NaHCO3 / g % by...
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