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May/June 2012 Papers!!!

Discussion in 'Cambridge O Levels' started by mohdumar, Jul 14, 2012.

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  1. Professor X

    Professor X

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    Thank u for these papers...do u when it may be possible to get the grade thresholds?
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  3. altox876

    altox876

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    When will Pak Studies paper 2 be uploaded
  4. chinyot

    chinyot

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    Thank you
  5. altox876

    altox876

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    Pakistan Studies paper 2 is missing. Would you please be kind enough to upload it
  6. smart_boy

    smart_boy

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    The following papers are missing...
    0500 English papers 12, 21, 22, 31, 33
    0450 Business Studies papers 11, 12, 13, 22, 23
    0455 Economics papers 13, 21, 22, 23, 32
    Can you please upload them..??? Thanks...!
  7. Gooners

    Gooners

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    Dude A level chemistry p42 is missing! Kindly upload ASAP!
    A-Level ( chemistry) paper42! Thnks
  8. chinmay

    chinmay

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    0417 ict paper 2 is missing could u please upload it !!!!!
    and also the supporting files of 0417 paper 2 & 3
  9. Albert Einstein

    Albert Einstein

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    thank you..may god bless u dr..btw u have general paper 8009( for mauritius)
  10. Starlight97

    Starlight97

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    thanks for sharing
  11. NeW ErA

    NeW ErA

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    1123/22 and 1123/21 r also nt uploaded.can u plz upload them?? well thanx fr the others
  12. rizwaan

    rizwaan

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    june 2012 paper 42 chemistry A level missing. please upload it.(n)
  13. Gooners

    Gooners

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    Chmistry p4 2012, ALEVELS pls upload this ppr if ny1 has it?
  14. Hamza Hameed Khan

    Hamza Hameed Khan

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    Pakistan Studies 'Environment of Pakistan' 2059/1 not uploaded.....!
  15. NIM

    NIM

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    guys need help!!!
    Q1_ Hydrated sodium carbonate has the formula Na2CO3.nH2O. An experiment was performed to determine n, the amount of water of crystallization. A sample of 50.00 g of hydrated sodium carbonate was dissolved in 250 cm3 of water. 20 cm3 of this solution reacted completely with 13.95cm3 of 2.00 mol/dm3 hydrochloric acid.

    Na2CO3(aq)+ 2HCl (aq) _______ 2NaCl(aq) +CO2(g)+H2O(l)
    a)Calculate the amount of HCl acid reacted.
    b). calculate the amount of sodium carbonate in the 20.00 cm3 of the solution used in the reaction.
    c). calculate the concentration of sodium carbonate in the sample.
    d). Calculate the molar mass of the hydrated sodium carbonate.
    e). Calculate the value of n.
  16. smart_boy

    smart_boy

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    Pls tell me the paper it is from... Mayb then I ll b able to answer this...
  17. NIM

    NIM

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    i dont know because its random...
    its IB Diploma question ... my teacher gave it....
  18. KyleoAhsan

    KyleoAhsan

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    Oh God! :p I thought it was an O level Question....and it Blew my head...! No wonder it is so tough!
  19. KyleoAhsan

    KyleoAhsan

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    a) 1.02g => 0.0279 moles

    b) 4g => 0.01395 moles

    c) 0.6975 g/dm3

    d) 286.73

    e) 10
    Do you have the answers? These are what I got so far..hope its correct xD!
  20. NIM

    NIM

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    i got the answers...
    thnxs a lot...
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  21. NIM

    NIM

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    i know rite!!!
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