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  1. H

    Chemistry: Post your doubts here!

    wat was ms definition of complex ion....i dun remember the paper at the moment
  2. H

    Chemistry: Post your doubts here!

    wat to study for design and materials chapter
  3. H

    how was chem. p5

    well i dint even mentioned allow the gas to cool to rtp b4 measuring volume so loosing 1 mark...here.....well regarding precaution.....i said make sure that there is no any combustible thing near aparatuss.....bt i guess itts imprecise rather than saying avoiding slames....wat do u say.....will...
  4. H

    how was chem. p5

    welll cud we use bunsen burner to heat ammonium nitrate which is contained in boiling tube
  5. H

    how was chem. p5

    well through the U TUBE GAS CN EASILY PASS ...IT HAS OPENINGS AT THE ENDS ....where cnnections cn be made to delivery tubes
  6. H

    how was chem. p5

    well u i think we must have drawn ice bath that is abeak filled with crushed ice.....and A U TUBE is there.....immersed in crushed ice ....where water will get cndensed and ccollected..........cos wid liebig condenser ....wehere u ll put the ice.....cos liebig cndenser works by a jacket of cold...
  7. H

    how was chem. p5

    last two parts most difficlt
  8. H

    chem paper 52 discussion.....how was IT

    yea exlty a@ last 2
  9. H

    chem paper 52 discussion.....how was IT

    http://xat.com/chemistrypaper52discussion
  10. H

    chem paper 52 discussion.....how was IT

    waitng guyxxx
  11. H

    chem paper 52 discussion.....how was IT

    PAPER WAS kind of different from rest of papers.....though i did well....expecting a low gt of abt 19 http://xat.com/chemistrypaper52discussion hurry up for discussion
  12. H

    Chemo P5 tips

    http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Chemistry%20(9701)/9701_w07_qp_5.pdf in question 1 he says control vriable shud be mass of hydroxide bt i think it shud be moles and not the masss!!!?......cos more the moles u have more will be heat evolved
  13. H

    Chemo P5 tips

    well for delta H sol.....it says dont accept mass of liquid + solid bt ony mass of liquid in the m in mcdelta T......i was taking mass of solution....nw why is dat
  14. H

    Chemo P5 tips

    thats easy.....delta y/delta x cn smone tell me waht moles to divide by when calclating enthaloy change of neutralization
  15. H

    Chemo P5 tips

    no it shud be a curve and a line
  16. H

    Chemo P5 tips

    http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Chemistry%20(9701)/9701_s11_qp_51.pdf q1 last part....why lrage syringe will reduce error.......
  17. H

    Chemo P5 tips

    pleaseeee anserrhttp://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Chemistry%20(9701)/9701_s11_qp_51.pdf qd ....why we need same mole for all carbonates....like i was measuring time for cllecting 10 cm^3 gas......so watever mole i have ....as long as 10 cm^3...
  18. H

    Chemo P5 tips

    actually studyguide copied from xpf
  19. H

    Chemistry: Post your doubts here!

    http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Chemistry%20(9701)/9701_s10_qp_51.pdf q1 last part............how do we knw whether to take mole of acid or alkali
  20. H

    Chemo P5 tips

    http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_s10_qp_52.pdf Question 1 part c......smbody tell me what to use to heat the solution bt not to overheat.....and how to position the thermometer aslo dint understand positioning of thermometer
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