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Equilibria, Energetics and Elements (F325) - June 2011 Exam. watch

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    Am I the only one who wants to hide in a corner and cry myself to death!
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    brass n. A yellowish alloy of copper and zinc, sometimes including small amounts of other metals, but usually 67 percent copper and 33 percent zinc.



    I GOT 33% SOMETHING. KILL ME
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    For delta G, I got 471 or something and said a reaction wouldn't happen spontaneously.
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    (Original post by Teva)
    i got -108 or something similar...
    i also got -108 therefore reaction was feasible
    That exam was a complete cluster**** in every sense :mad:
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    (Original post by inam_ayaz)
    That paper was disgusting...missed around 30 marks wat bout evry 1 else??
    dropped 30? :eek: I think I've just about got about 30 marks
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    (Original post by RodrigoB)
    brass n. A yellowish alloy of copper and zinc, sometimes including small amounts of other metals, but usually 67 percent copper and 33 percent zinc.



    I GOT 33% SOMETHING. KILL ME

    I also got 33%
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    (Original post by Sceaga)
    that sounds ok , I used acetic acid and got 16:1
    acetic acid is ethanoic acid lol

    but i realised i square rooted something along the way which is wrong, so you are probably right.
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    (Original post by Lissa-154)
    3x10^-3 s^-1

    I have no idea whether it's right or not.
    Yay! That's what I got too. Gradient of tangent at t=0/ 0.01
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    For the ice melting thing, I put entropy positive, enthalpy negative, and then changed enthalpy to positive as it's endothermic? Anyone else get this?
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    (Original post by ruby321)
    Was I the only one who was actually ok for time? I even had 15 mins left...
    Though since everyone is saying they ran out of time it makes me think I've missed something out or did it all wrong
    I chose any acid for the buffer question... I did benzoic acid and got the ratio as 0.23
    I swear I got that whole question wrong but I accepted that I would loose a few marks here and there.
    I definitely need an A I just can't miss my grades, I actually don't know what I'll do if it happens
    same, my med offer is gone but i can't even think about it because theres nothing i want to do more. this paper was incredible.
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    (Original post by prince_s9)
    I had 10 minute for last Q. said when sodiumcarbonate is added to nutralise acid. i did HNO3 + NA2CO3 for step 2
    but later in step 4 using the same solution they had Copper Iodide :/ don't know where that came from. Thats a gurantee my step 2 is wrong
    ha I got confused right there

    but then they gave us the products CUI and I2

    so I just made up an equation from that LOOOOOOOOOOOOOOL

    =FLOP
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    (Original post by Heatheroink123)
    For the ice melting thing, I put entropy positive, enthalpy negative, and then changed enthalpy to positive as it's endothermic? Anyone else get this?
    I did too That paper was outrageously hard!
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    (Original post by Heatheroink123)
    For the ice melting thing, I put entropy positive, enthalpy negative, and then changed enthalpy to positive as it's endothermic? Anyone else get this?
    I put enthalpy positive cos its endothermic and entropy negative as solid to liquid is more disordered. Am i right?
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    (Original post by susan23)
    Am I the only one who wants to hide in a corner and cry myself to death!
    Agreed. It was the hardest exam I've ever faced by a large margin. I'm very concerned that I won't get into university this year....


    (Original post by RodrigoB)
    brass n. A yellowish alloy of copper and zinc, sometimes including small amounts of other metals, but usually 67 percent copper and 33 percent zinc.

    I GOT 33% SOMETHING. KILL ME
    I got 6.7 ---> I didn't x10 and I feel like an idiot.
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    (Original post by chjw)
    you were given delta G
    Yeah I know, I got confused but I figured Delta S doesn't change as it's always the same reaction and thought Rearranging T = Delta H/Delta S was easier than rearranging the whole other one?
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    (Original post by student21)
    i put enthalpy positive cos its endothermic and entropy negative as solid to liquid is more disordered. Am i right?
    exactly what i put
    f***k yeah
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    (Original post by susan23)
    Am I the only one who wants to hide in a corner and cry myself to death!
    nope your definitely not
    i'll be suprised if I get a gradehahaha
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    (Original post by RodrigoB)
    brass n. A yellowish alloy of copper and zinc, sometimes including small amounts of other metals, but usually 67 percent copper and 33 percent zinc.



    I GOT 33% SOMETHING. KILL ME
    Haha, I got 33% too, fiddled with the numbers and ended up with that. I'm so depressed, and F324 resit is gonna finish me off.
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    I actually couldnt do the majority of the paper!! I coundlt even do the buffer question1?!??! i dont why it just didnt make any sense?!?! I cudnt do the last question either?!?!? everything about that paper was so ****ed up ...i cudnt do the 3D structure properly...WT ...I dont understand...I revised so much and now I **** it all up....and there were like 4 -9 marker questions...I;ve probably lost 50+ marks...I actually feel like **** now...I seriuosly hope the grade boundaries are REALLY LOW im sorry I dont want 60/100 to be an A I want atleast 40/100 to be an A because that exam was so unfair..well half of it was unfair...CUDNt do ****ing ionic equations....stupid half equations...and they waffle so much...I dont give a **** if you want to make TANGY SWEeTS!¬!! I just want to do the work that was set in my BOOK not your ****ing imagination OCR!"!!! everyone should write emails to OCR...seriously..even if you FOUDN it Ok...because u dont know....!
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    Anyone else get around 5x10^-3 s^-1 for the rate?
 
 
 
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