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    (Original post by tom108)
    I worked out the ration to be 0.63 or something? Sound familiar?
    Ratio of what?
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    (Original post by tkoki1993)
    Ratio of what?
    The last quesion with the 4 marker calculation
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    Paper was ok. not the best or worst chem paper iv seen but really synoptic!
    What was the reaction mechanism on the first question?
    i put 12g for the mass question
    How many marks do you recken id get out of 5 if i put it above the line for the enthalpy level diagram but everything else was right?
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    (Original post by tom108)
    The last quesion with the 4 marker calculation
    Omg why don't I remember this question :/
    Ahhhhhh
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    (Original post by francescaxxx)
    SF6 was one and LiF I think!
    I put covalent for SF6 and ionic for the other.

    I was so confused be the conjugate acid question!!! Damn it ! Now I know the answer it seems so obvious!!
    oh what was the answer? I just wrote the same molecule as given in the question, haha
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    FML FML FML *goes to revise for biology unit 5 and Chemistry f334
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    When do we reckon we can get a copy of the paper? I'm guessing noone has one? Biology one flew up within hours on Monday!
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    (Original post by tkoki1993)
    Omg why don't I remember this question :/
    Ahhhhhh
    I think he's talking about the mass one
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    (Original post by tom108)
    Thats wrong i think sorry. :/

    3SF2 + 02 ---> 2SF6 + SO2
    Was it not SF4 to SF6? Did I misread the question?
    I put 6SF4 + 02 --> 4SF6 + 2SO
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    Just wondering what people got for the Stotal and Ssystem? I got like +9k(roughly) and -268 for system. Messed up this paper big style.
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    (Original post by Paolat)
    FML FML FML *goes to revise for biology unit 5 and Chemistry f334
    lol were in the same boat. bio unit 5 is going to be a killer
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    (Original post by patrick93)
    lol were in the same boat. bio unit 5 is going to be a killer
    edexcel better behave for unit5.. monday was a joke -___-
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    (Original post by SmileyGurl13)
    I think he's talking about the mass one
    There were so many mass questions they've all become a blur lol
    I can only remember one where I got 19.4
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    (Original post by MattyC93)
    Just wondering what people got for the Stotal and Ssystem? I got like +9k(roughly) and -268 for system. Messed up this paper big style.
    Same. I thought I'd fluffed it up. They tried to confuse us by putting the - in front of the DeltaH value.

    Overall. I was displeased by the emphasis on bonds and electronegativity, when there could have been more questions on azo dye synthesis etc, but, I'd revise just enough to get through it so... Hopefully it'll be okay!
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    (Original post by twelve)
    Oh no, I think I got this wrong...

    You mean the one about how much was dissolved to make the buffer?

    I think this is what I did. It was pH 7, so I worked out the concentration of H+ needed, then substituted that into the equation for Ka, and found what the ratio of the other two was. Then substituted in the concentration that we were given to find the concentration of the other one. Then converted that concentration into g dm-3 and got something like 19 g?

    Thinking back I don't think that was right, but it completely made sense at the time haha.


    Some really nasty questions on that paper, but some nice ones too I'm now going to unsubscribe to this thread so I don't realise any others I've got wrong and start panicking haha.
    I did that too, I worked out moldm^-3 then converted to gdm^-3. I'm an idiot at times!!!
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    (Original post by Paolat)
    edexcel better behave for unit5.. monday was a joke -___-
    I'm expecting the worst for biology. Just gonna prepare myself for questions on stats seeing as that's what they seem to love so much now
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    (Original post by ABCDemily)
    Same. I thought I'd fluffed it up. They tried to confuse us by putting the - in front of the DeltaH value.

    Overall. I was displeased by the emphasis on bonds and electronegativity, when there could have been more questions on azo dye synthesis etc, but, I'd revise just enough to get through it so... Hopefully it'll be okay!
    Thank god someone got the same, I have hope!
    Best of luck to you.
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    So I've dropped roughly 15-20 marks so far... Ouch
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    (Original post by tom108)
    I worked out the ration to be 0.63 or something? Sound familiar?
    Agreed. Then do you get 7.4 ish grams for the amount of acid you put in?
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    (Original post by gozatron)
    So I've dropped roughly 15-20 marks... Ouch
    I had a quick count and managed to drop at least 25, just through pure lack of knowledge and the others not being as detailed as they should have been. Not good!

    I have an English Lit exam tomorrow morning. I need to get off TSR.
 
 
 
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