OCR Chemistry A 2016 unofficial mark scheme 27/05/16

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Four things that unis think matter more than league tables 08-12-2016
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    (Original post by sia_x11)
    I have the paper guys should i upload it
    Could you PM me the paper too please?
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    How did you all feel about the depth paper? Did anyone get C4H8O2 for analytical techniques question?

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    (Original post by KingAuthor)
    How did you all feel about the depth paper? Did anyone get C4H8O2 for analytical techniques question?

    Posted from TSR Mobile
    Yeah, I did but then followed it through to get butanoic acid?
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    (Original post by Chocolate Rain)
    Yeah, I did but then followed it through to get butanoic acid?
    It wasn't butanoic acid, the peak of 43 was a secondary carbocation and therefore it was 2-methylpropanoic acid
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    (Original post by Chocolate Rain)
    Yeah, I did but then followed it through to get butanoic acid?
    I did the same, however I believe the answer should've been 2-methylpentanoic acid due to the little sentence that said "The peak at 44 was due to a secondary Carbocation"
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    (Original post by Biostudent123)
    It wasn't butanoic acid, the peak of 43 was a secondary carbocation and therefore it was 2-methylpropanoic acid
    Oh right just thought it said the little sentence at the bottom to make us exclude the m/z of 89 to make us use the 88 m/z oh well
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    Is someone gunna put an unofficial markscheme for this one?
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    (Original post by sia_x11)
    I have the paper guys should i upload it
    Can you pm it to me too please?
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    (Original post by sia_x11)
    I have the paper guys should i upload it
    Would you please send it to me?
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    (Original post by sia_x11)
    I have the paper guys should i upload it
    Hey, would you be able to pm me it?
    Thanks.
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    (Original post by sia_x11)
    I have the paper guys should i upload it
    Could you PM to me as well please
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    (Original post by sia_x11)
    I have the paper guys should i upload it
    Could you pm me as well please!
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    (Original post by sia_x11)
    I have the paper guys should i upload it
    Please could you pm it me? I would be eternally greatful
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    (Original post by sia_x11)
    I have the paper guys should i upload it
    would you mind sending it to me
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    (Original post by sia_x11)
    I have the paper guys should i upload it
    Would you be able to pm it to me as well please, if you don't mind.
    Thanks!!
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    Can anyone send me the ocr practice papers for Chemistry please.
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    (Original post by sia_x11)
    I have the paper guys should i upload it
    hey could you send me the paper please
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    please pm me the paper i NEED this , second time doing AS and still cant pass, thank you
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    (Original post by sia_x11)
    I have the paper guys should i upload it
    please pm me the paper in desperate need thank u in adavance b
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    (Original post by KevinClyde)
    I did the same, however I believe the answer should've been 2-methylpentanoic acid due to the little sentence that said "The peak at 44 was due to a secondary Carbocation"
    A propyl ion could be a secondary carbocation, and it would come from butanoic acid
 
 
 
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