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    http://filestore.aqa.org.uk/subjects...5-QP-JUN15.PDF
    Q1C)

    Guys whats the best way to approach a born-haber cycle question? They've asked for electron affinity so which route would be the best to take?
    I always seem to get these wrong :/
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    Does anyone know if they would ever give the electrode potentials of an oxidation series rather than a reduction series?
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    Can anyone please tell me why the answer to question 2(b) for chem5 June
    2012 is 0.098 and not 0.1
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    (Original post by typing)
    Can anyone please tell me why the answer to question 2(b) for chem5 June
    2012 is 0.098 and not 0.1
    use the first and last point as your calculation for the gradient
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    (Original post by Suits101)
    June 13/15 in my opinion.
    15 was a gift
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    (Original post by RME11)
    http://www.thestudentroom.co.uk/atta...d=390319&stc=1

    ^ Easily the most simple table showing transition metal complex formulas & colors.
    i use that although i changed the excess oh- for Cr3+ to (OH)6 instead of (OH)4
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    (Original post by ravichauhan11)
    15 was a gift
    Really? I did well on it but I still thought it was quite difficult.
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    If we have to give the equations for aluminium oxide acting as an acid with sodium hydroxide, do we include the sodium ions?
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    (Original post by Suits101)
    Really? I did well on it but I still thought it was quite difficult.
    i thought all the questions were very standard, much harder ones have been asked before. Plus the boundaries speak for themselves
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    Can someone explain the chelate effect
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    http://filestore.aqa.org.uk/subjects...5-QP-JUN13.PDF

    Can someone explain q5c please?
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    http://filestore.aqa.org.uk/subjects...5-QP-JUN13.PDF

    http://filestore.aqa.org.uk/subjects...W-MS-JUN13.PDF

    1e anyone??? Why is it greater?? Thanks in advance x
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    Hi i was wondering if anybody could help with this question from the jan13 chemistry paper question 7a. Im struggling to understand what to draw thanks! Name:  ImageUploadedByStudent Room1466449741.429582.jpg
Views: 122
Size:  132.1 KB


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    (Original post by Super199)
    Can someone explain the chelate effect
    So when there's an increase in the number of particles from LHS to RHS there is an increase in entropy and disorder
    EG A + 2B ---> 3C + 4D
    There would be in increase in entropy due to more product particles
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    (Original post by Sexybadman)
    Hi i was wondering if anybody could help with this question from the jan13 chemistry paper question 7a. Im struggling to understand what to draw thanks! Name:  ImageUploadedByStudent Room1466449741.429582.jpg
Views: 122
Size:  132.1 KB


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    Name:  Snapshot_20160620.jpg
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    Hopefully you can make out what I've drawn
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    what color is the metal aqua ion of [Fe(H20)6] 3+ ? Some say yellow some violet??
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    (Original post by yung7up)
    what color is the metal aqua ion of [Fe(H20)6] 3+ ? Some say yellow some violet??
    I have always learned it as yellow but you could say either


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    (Original post by yung7up)
    what color is the metal aqua ion of [Fe(H20)6] 3+ ? Some say yellow some violet??
    I say purple but there are many alternatives
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    (Original post by werdo1997)
    Name:  Snapshot_20160620.jpg
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    Hopefully you can make out what I've drawn
    Thank Alot i really appreciate you taking the time to do that


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    http://filestore.aqa.org.uk/subjects...5-QP-JUN13.PDF

    http://filestore.aqa.org.uk/subjects...W-MS-JUN13.PDF

    I spoke too soon when I said I like the titration questions... would someone please send me a worked through example of 8c?? I'm lost Thank you in advance
 
 
 
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