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  1. princesszahra

    Chem paper 1 2008 helpp

    @ shooter! http://www.chemguide.co.uk/physical/equilibria/kc.html HOPE THIS HELPS!
  2. princesszahra

    PROFESSER'S STAR or THE STAR INSTITUTE (LAHORE)????

    both r same!!!they r only different bracnches !! and u better know whether which one isnt good cuz i am very new to this!
  3. princesszahra

    Chemistry paper1 2009

    @duffer greek right man!
  4. princesszahra

    OMG! Physics p22!!!

    hmm right!!
  5. princesszahra

    Chemistry paper1 2009

    the nov paper could u tell me the same question in p12/???/
  6. princesszahra

    Chemistry paper1 2009

    june 09 q28 after prolonged heating the carbon of alkene will be changed to CHO and also the one in the ring u already have one is the diagram so there r 3!
  7. princesszahra

    Chemistry paper1 2009

    june 09 q8 cuz formation values r given delta H nought of pdts - reactants so 2(-288.8) - 2 ( -187.8) so u get -196
  8. princesszahra

    Chem paper 1 2008 helpp

    june 08 q 15 find mr of CaCO3 ie 100.1 nd no of moles of CaCO3 ie total mass here take it as 1200 only if u can put million and have time to do all that stuff do it but here's a striaght way then CaCO3 ----> caO +CO2 then no of moles of co2 will be same as caco3 ie 11.988 them no of moles...
  9. princesszahra

    Chem paper 1 2008 helpp

    @ intel 1993 nov 09 12 q22 we cant oxidize once the polymer is formed! so B and D cant be the answers nor we can hydrolyse the addition polymer so A is not the answer left C so it is the answer !! happy now??!
  10. princesszahra

    Chem paper 1 2008 helpp

    nov 08 q1 write eqn FeTi)3 ----------- > TiO + FeO then moles of FeTiO3 now find!
  11. princesszahra

    p 21 n 51 phy!

    that was tricky but easy!!
  12. princesszahra

    Chem paper 1 2008 helpp

    q 25e C and D cant be the answer cuz they r secondary and tertiary B cant be the answer cuz OH- is an ionized one so the answer is A
  13. princesszahra

    Chem paper 1 2008 helpp

    june 08 q2 find moles of nitrogen ie 15/14 so 15/14----------------- 100g ?------------------14 u get 0.15 then 0.15 ----5dm^3 ?---------1dm^3 now u get 0.03 q10 delta H nought of pdts - reactants so 2(-110) - - 940 u get 720
  14. princesszahra

    OMG! Physics p22!!!

    @ hamiz the thing abt dilwaliya!!
  15. princesszahra

    p 21 n 51 phy!

    i did an awesome pprs again!! hopinnng to get full in p51 and 2 marks less in p21!
  16. princesszahra

    OMG! Physics p22!!!

    ohh man!! nice one!! i cant stop laughing!!!!
  17. princesszahra

    abt p41 chem

    ppl how did it go??!??!?! i mean i had such a good paper and finished like befor e30 mins and applications were sooo good!! i am happy! what abt ya??!!
  18. princesszahra

    p5 phy

    i uploaded them yesterday but working XPF wasnt if u dont trust me u can ask zohaib bhai about this! he knows it too!
  19. princesszahra

    Chemistry paper 41 discussion. How did it go'

    @ wadha ok now i know how tenses u r lol !!! come on relax sis
  20. princesszahra

    ANYONE HERE FROM LAHORE GRAMMAR SKOOL!!???

    lol mista lova lova its good then! :D
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