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  1. BlackVelvet

    Chemistry, Physics, Biology Paper 3 GUESS

    Now PAPER 34 Biology do you have any guess? Are my predictions on the first post correct or are there any revision guess?
  2. BlackVelvet

    confirm salts chem34

    my enthalpy is around 60. and gradient is 1.75. I answered alcohol is in FB 9 and FB 12 because when its being oxidized with potassium dichromate it turned to ketone and aldehyde. so they are alcohols. rite? or am I just being dumb?
  3. BlackVelvet

    HOW WAS CHEMISTRY PRACTICAL?

    right?? someone please confirm this :(
  4. BlackVelvet

    HOW WAS CHEMISTRY PRACTICAL?

    @sk8rdude: Isn't FB9 is becoming ketone after it is acidified with potassium dichromate? I mean it means it is alcohol before the oxidation reaction happens right? And so is FB 10. It is alcohol before oxidized. That's why we need to identify the presence of ketone or aldehyde using 2, 4 DNPH
  5. BlackVelvet

    HOW WAS CHEMISTRY PRACTICAL?

    sooo? what is the solutions containing alcohol?? I answered FB9&FB12
  6. BlackVelvet

    How was your chem practical(34)......,

    I don't think percentile will be high though. Not everyone is having a great practical lol and isn't it all depends on the result of our teacher's experiment?
  7. BlackVelvet

    HOW WAS CHEMISTRY PRACTICAL?

    well I think it all depends to our teacher's experiment then.... by the way whats the solution contains alcohol? FB10&FB11 or FB9&FB12 ??
  8. BlackVelvet

    HOW WAS CHEMISTRY PRACTICAL?

    yes mine too went straight through the origin but gradient was not 2 what about the solutions with alcohol?
  9. BlackVelvet

    HOW WAS CHEMISTRY PRACTICAL?

    Hey anymore response?
  10. BlackVelvet

    confirm salts chem34

    cant be more agree than this :)
  11. BlackVelvet

    HOW WAS CHEMISTRY PRACTICAL?

    mine was 67.3KJmol-1 :o im getting a heart attack here! how much marks do you think im losing for the wrong enthalpy value??
  12. BlackVelvet

    confirm salts chem34

    how come the gradient's negative???
  13. BlackVelvet

    HOW WAS CHEMISTRY PRACTICAL?

    how was the enthalpy value? and is it true that gradient is supposed to be negative?
  14. BlackVelvet

    confirm salts chem34

    my gradient was 1.75 and enthalpy about 60kJmol-1 ... damn. and no the gradient isn't supposed to be negative i think.
  15. BlackVelvet

    HOW WAS CHEMISTRY PRACTICAL?

    For those who take chem practical: 1. How did it go? 2. How accurate were the guesses? Hope yours went great! ;)
  16. BlackVelvet

    Chemistry, Physics, Biology Paper 3 GUESS

    CHEMISTRY P34 UPDATED! See the first post! And ppl discuss here :)
  17. BlackVelvet

    Stats paper 6 {Leak}

    You have to find E(X) first which is mean. Then find in the box probabilities of X greater than the mean. How do you do number 2? I can't seem to find the answer lol
  18. BlackVelvet

    Chemistry, Physics, Biology Paper 3 GUESS

    I am not PM-ing anyone who ask me to PM them. Because if you want to know about those papers you can simply read it on the first post of this topic. And no, I don't have the paper with me lol so I cannot go scan it for you and email it to you :)
  19. BlackVelvet

    HOW WAS CHEMISTY PRACTICAL?

    So, how was it going? Sorry I've been away for a while due to the crazy spamming to my inbox :lol: Anyway, keep me updated about the situation here. Thanks. 1. How did the paper go? Time management problem? 2. Any difficulties?
  20. BlackVelvet

    Chemistry, Physics, Biology Paper 3 GUESS

    Everyone, Physics p33 info please pm me. Chemistry P33 also.
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