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OCR AS - Chemistry Unit F322 - Chains, energy and resource - REVISION! watch

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    (Original post by arvin_infinity)
    iii) • v) What is the method of obtaining decarbonised fuel and show an equation for methane.

    ??
    CH4 + 2h20 --> CO2 + 4H2

    A decarbonised fuel will be produced by reforming natural gas into a mixture fo H2 and CO2.

    Does that help?
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    Good luck everyone! 6 minutes to go. I might go in as ell
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    Didn't think that was to bad? Although I say that all the time!
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    Wtf was the polymer . But 2 ene?
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    FFFFFFMMMMMMMLLLLLLLL

    Ahhhhh!

    And to make things worse, I sat on a wet bus seat

    Eughh
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    Wtf was the polymer . But 2 ene?
    I put butene? Don't think it's right though.

    The question that got me was the shapes on carbon 1 and 2?
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    (Original post by Killmepls)
    Wtf was the polymer . But 2 ene?
    but-1-ene

    but on a side note, i thought the exam was quite nice
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    (Original post by yesioo)
    I put butene? Don't think it's right though.

    The question that got me was the shapes on carbon 1 and 2?
    I got the shape around carbon 1 to be tetrahedral
    and
    the shape around carbon 2 to be trigonal planar. They threw some Unit 1 stuff in :P
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    Also what did people get for the last question?

    People at my school either got

    - Methyl propanoate
    - Ethyl propanoate
    - Ethyl methanoate
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    I got the shape around carbon 1 to be tetrahedral
    and
    the shape around carbon 2 to be trigonal planar. They threw some Unit 1 stuff in :P
    Oooh! That's what it was going on about?! I failed at that them. I put 120 and 109.5 :laugh: Thank poptarts it was only worth 3 marks!
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    FAIL
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    Methyl propanoate
    - Ethyl propanoate
    - Ethyl methanoate

    I got ethyl propanoate but i also put down propyl ethanoate so I doubt I'll get the mark. Even so that was a GIFT of a question!
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    Grade boundaries, low or high?
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    (Original post by Yarpie)
    Grade boundaries, low or high?
    High - majority of paper was easy, even though there were TWO TEN MARKERS
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    quite an alright exam- im pleased diffuculty doesnt compare to that of the June 10 paper..
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    How many marks do you think I will lose if I got methanol as the alcohol for the last question? Would I get ECF for the final ester name?
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    I think that went terribly. Too much green chemistry,
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    it was HARD!
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    (Original post by |Alex)
    Also what did people get for the last question?

    People at my school either got

    - Methyl propanoate
    - Ethyl propanoate
    - Ethyl methanoate
    ethyl propanoate was what i and most other people got at my school
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    (Original post by anil10100)
    FAIL
    My thoughts exactly.
 
 
 
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