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    Would anyone mind doing question 7 on this sheet:

    http://www.creative-chemistry.org.uk...s/N-ch5-03.pdf

    As it doesn't have the answers, but would be good to compare!
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    (Original post by haydyb123)
    Head up, what's wrong?
    Just everything to do with chemistry right now :cry2:. In terms of past papers which ones have you done (from the old spec im assuming you've done the new ones? lol)
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    (Original post by blush.ox)
    Just everything to do with chemistry right now :cry2:. In terms of past papers which ones have you done (from the old spec im assuming you've done the new ones? lol)
    Hmm I've done quite a few, most of the unifying concepts, trends and patterns, and transition metals. Some of the stuff is irrelevant so don't get disheartened by seeing something you can't do.
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    (Original post by haydyb123)
    Would anyone mind doing question 7 on this sheet:

    http://www.creative-chemistry.org.uk...s/N-ch5-03.pdf

    As it doesn't have the answers, but would be good to compare!

    a)0.047mol dm3 (my bad, didnt read question properly)
    b)0.01175
    c)10.095% Fe, so yes it will "kill em all"
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    When calculating Kc do we do any heterogeneous equilibria or is it all homogenous
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    Guys, do we need to know how to do water of crystallisation? I hate that
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    (Original post by nyeem)
    When calculating Kc do we do any heterogeneous equilibria or is it all homogenous
    Says just homogenous in the book, also does in the spec too i think xD

    (Original post by INeedToRevise)
    Guys, do we need to know how to do water of crystallisation? I hate that
    Tz in one of the examples in the book, i would go over it if i were you
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    (Original post by blush.ox)
    Tz in one of the examples in the book, i would go over it if i were you
    Another thing to go over
    Hows revision going?
    I really hope we get an easy paper, born haber cycles and no redox titrations :ahhhhh: haha
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    Out of curiosity, how different are the calculations of Kc for heterogeneous equilibria?
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    (Original post by ViralRiver)
    Out of curiosity, how different are the calculations of Kc for heterogeneous equilibria?
    I don't think thats in the spec
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    (Original post by INeedToRevise)
    Another thing to go over
    Hows revision going?
    I really hope we get an easy paper, born haber cycles and no redox titrations :ahhhhh: haha
    All over soon i guess revision is going terrible, although i've just printed about 4 past papers and i feel slightly better, dont know how i'll do on them though :teehee:. Born haber cycles hopefully and something along the lines of entropy etc :ahee:. Hows it going for you?
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    (Original post by haydyb123)
    Would anyone mind doing question 7 on this sheet:

    http://www.creative-chemistry.org.uk...s/N-ch5-03.pdf

    As it doesn't have the answers, but would be good to compare!
    you sure you can't get the asnwers for this?
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    (Original post by wilsea05)
    a)0.001175moles
    b)0.01175
    c)10.095% Fe, so yes it will "kill em all"
    in (a) is 0.001175 mol the same as 0.001175 mol per dm^3 because it asks for conc.? sorry if this is a stupid qu.
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    (Original post by Teva)
    in (a) is 0.001175 mol the same as 0.001175 mol per dm^3 because it asks for conc.? sorry if this is a stupid qu.
    my bad, i didnt read the question properly and didnt convert it to conc. it should be 0.047mol dm3?
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    (Original post by blush.ox)
    All over soon i guess revision is going terrible, although i've just printed about 4 past papers and i feel slightly better, dont know how i'll do on them though :teehee:. Born haber cycles hopefully and something along the lines of entropy etc :ahee:. Hows it going for you?
    Its ok I guess. Yep, born haber and entropy :crossedf: This is the one I'm most worried about Cannot believe how quickly it has come. I really have had enough of revision now. Three more weeks though. :cry2:
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    (Original post by wilsea05)
    my bad, i didnt read the question properly and didnt convert it to conc. it should be 0.047mol dm3?
    :woo: thats what I got. When I saw your previous post, I was so annoyed I got it wrong. Haha
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    (Original post by sportycricketer)
    I don't think thats in the spec
    That's why I'm curious
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    (Original post by touran22)
    you sure you can't get the asnwers for this?
    (Original post by Teva)
    in (a) is 0.001175 mol the same as 0.001175 mol per dm^3 because it asks for conc.? sorry if this is a stupid qu.
    (Original post by wilsea05)
    my bad, i didnt read the question properly and didnt convert it to conc. it should be 0.047mol dm3?
    (Original post by INeedToRevise)
    :woo: thats what I got. When I saw your previous post, I was so annoyed I got it wrong. Haha
    Yeah I got the same as Wilsea05 and probably all of you
    0.047 mol dm-3
    0.01175 moles
    10.09% they will die, poor plants :bandit:
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    (Original post by INeedToRevise)
    Its ok I guess. Yep, born haber and entropy :crossedf: This is the one I'm most worried about Cannot believe how quickly it has come. I really have had enough of revision now. Three more weeks though. :cry2:
    I really hope it'll be ok and lowish grade boundries will help . I havent looked at F324 for ages :zomg:.
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    (Original post by blush.ox)
    I really hope it'll be ok and lowish grade boundries will help . I havent looked at F324 for ages :zomg:.
    Hmm, I liked the June 2010 paper and that was pretty low boundaries like 71 for an A. I think something like that would be good.

    Dont even mention F324 haha :sad:. I'm gonna have to cram like crazy on wednesday evening and thursday.
 
 
 
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