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OCR A2 CHEMISTRY F324 and F325- 14th and 22nd June 2016- OFFICIAL THREAD watch

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    (Original post by aegonsconquest)
    It makes sense though, the paper was nearly identical to last years'
    last year max ums was 95. I deffo think the boundaries will increase by +1/+2 from last years'. fo sure
    just wait mate, you haven't had it marked yet lol
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    (Original post by aegonsconquest)
    guys you know the empirical formula, did you have to put a +2 charge?!?!
    Well I am screwed
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    (Original post by MrZebraCookie)
    It's that I think. I wrote mine in complex form (kicking myself)
    when i read the question, i was like bruh you want an empirical formula of a complex ions, bruh what do you mean
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    http://www.thestudentroom.co.uk/show....php?t=4180862

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    (Original post by aegonsconquest)
    guys you know the empirical formula, did you have to put a +2 charge?!?!
    it is 2- not 2+ because i got that wrong also.
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    (Original post by aegonsconquest)
    guys you know the empirical formula, did you have to put a +2 charge?!?!
    -2 no? cos of the two 2- bidentate ligands but yeh you did :/
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    reckon it would be alright with no brackets and the 2- charge at the end?
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    (Original post by k.russell)
    Really? I cannot believe you're saying this ****... 80+ for an A lol! It's never been more than 80 for an A and I certainly wouldn't say that was the easiest EEE paper ever.. if you ask me, it will be a little lower than last year, maybe last years boundaries shifted down by 1 or 2
    But you're not taking into consideration how subjective papers can be for people.

    There will be a change imo, and it will likely result in an increase of +1 or more. Im saying this is in the most unbiased way, its pointless having wishful thinking.
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    (Original post by lai812matthew)
    it is 2- not 2+ because i got that wrong also.
    yeah so no mark for us i guess?
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    (Original post by aegonsconquest)
    guys you know the empirical formula, did you have to put a +2 charge?!?!
    I'm fairly sure it asked for the charge in the question!
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    For the last question what did you get X =. ? I got 4.
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    (Original post by aegonsconquest)
    yeah so no mark for us i guess?
    yes
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    (Original post by MrFantastisch)
    For the last question what did you get X =. ? I got 4.
    yeah x=4
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    (Original post by MrFantastisch)
    For the last question what did you get X =. ? I got 4.
    I got 4 too! Other people on here got this as well
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    (Original post by Jm098)
    -1099 for hydration?
    I got that also, I made an equation something like this

    DeltaH lat (-1750 ish) = 2(-320 ish) + (X) - (24)

    2(-320 ish) as there were 2K+ ions

    rearrange: -1750 (approx) + 640 (approx) + 24 = X which turned out to be -1099
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    at least 90% of all of you and the people that sat the paper in my school got the last Q right (hefty 5 marker)


    obvs man like me worked it all wrong and put down 2. ECF? nah
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    I somehow got 42 in the beginning and realised it was wrong so i changed it to x=4

    (Original post by Jm098)
    yeah x=4
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    (Original post by Jm098)
    -1099 for hydration?
    yeah i got that, haven't seen anyone else say they got this yet though
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    does anyone know the answer to the half cells and it asks when cu acts as an oxidising reagent and when it acts as a reducing agent. I remember you compare redox system 1 and 2 for one of them and then for the other you compare redox system 2 with every other redox system other than 1 and 2. Was this right?
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    Anyone got unofficial mark scheme going?
 
 
 
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