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  1. M

    Paper 5 Tips !! :)

    Hey guys just a couple more questions I'd be so grateful if you answered knowitall10 got my spelling of grateful right! ;) -ON 2007 Q1 moles 0.05-0.25 specified why do they do that? -ON 2009/52 Q1 (a) the MS says "predicts all strong acids have constant DeltaHNeut. <--- HOW...
  2. M

    Paper 5 Tips !! :)

    OHMYGOSH I LAUGHED OUT LOUD AHAHAHAA PERFECT!
  3. M

    Paper 5 Tips !! :)

    Its regarding a past paper question! They asked you to calculate deltaHsol and i don't understand the relation of dividing Q=cmdetaT by moles?
  4. M

    Paper 5 Tips !! :)

    Of course of course! Could you help me out though?
  5. M

    Paper 5 Tips !! :)

    Hey guys could you please help me with a slight difficulty?
  6. M

    Paper 5 Tips !! :)

    Hahahahhaaaaa omg just saw this! No of course not! Just tagged someone in case no one saw it
  7. M

    Paper 5 Tips !! :)

    Quenching is basically stopping the reaction! Or slowing it down so much that it won't change when you measure it for example placing an amount of solution on ice
  8. M

    Paper 5 Tips !! :)

    knowitall10 @jiyadahsan You guys are honestly such selfless people. Makes me want to cry. Haven't seen such honestly nice Muslims in so long.
  9. M

    Paper 5 Tips !! :)

    You guys should look though the last 20 pages of "Chemistry post your doubts here" main page. I've explained that very extensively there!
  10. M

    Paper 5 Tips !! :)

    Also, xhizors what's how to we get the formula Q=cmdeltaT/moles and what is it for?
  11. M

    Paper 5 Tips !! :)

    xhizors could you help me out a bit in part (e) of ON 2007 Q1? All I'm confused about is why are the moles specified to 0.05-.25?
  12. M

    Paper 5 Tips !! :)

    It sometimes is, and sometimes isn't! Depends on what the relation is! Direct proportionality usually requires a true origin whereas others require a straight line. Trick is, visualize the 0,0 point in your head with the given relationship! Like if I make one reactant 0 will the other be 0? And...
  13. M

    Chemistry: Post your doubts here!

    Yes it does! Your calculation was right, but in your mind you were calculating the wrong thing!
  14. M

    Chemistry: Post your doubts here!

    FOR B) The values calculated should not be less than the values used to calculate! So for this, all readings are to 2 dp so the values used to calculate the mass of iodine are all to 2dp ours should be as well! The trick is always to do equal dp as readings UNLESS stated otherwise (like...
  15. M

    Chemistry: Post your doubts here!

    This was a CHEMISTRY thread last time I checked bro.
  16. M

    Chemistry: Post your doubts here!

    What paper and what version and what question?
  17. M

    Paper 5 Tips !! :)

    I'm pretty sure I replied to your saturated solution question in detail!
  18. M

    Paper 5 Tips !! :)

    Oh no problem! You didn't disturb me! I was just saying I was doing it from memory! Didn't have a paper in front of me! :)
  19. M

    Paper 5 Tips !! :)

    I'm actually going to bed right now, I can't get up and go check the paper as I don't have that particular question in mind. I'll try to answer Tommorow after my exam if your question is still unresolved by then!
  20. M

    Paper 5 Tips !! :)

    Now I'm doing this from memory, I'm in bed and I have an exam tommorow but I couldn't resist answering: -I'm pretty sure it's 0.02/50 (as 25cm3 is the original solution volume) the x2 comes from 2 COOH groups in succinc acid. Understand??
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