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OCR (Salters) AS Chemistry: Unit F332 (Post exam discussion Jan 2010) watch

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    (Original post by Louuu_xx)
    F332 is OCR salters B not OCR A
    Good! Because I was looking at this thread and thinking 'what?! I dont remember these questions!' and confusion quickly converted to panic. :laugh:
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    (Original post by HotCoco.)
    Good! Because I was looking at this thread and thinking 'what?! I dont remember these questions!' and confusion quickly converted to panic. :laugh:
    Ahahaa! Likewise, I thought the same. Phew
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    Is there a thread for OCR A F322???
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    (Original post by Haz Shah)
    Ahahaa! Likewise, I thought the same. Phew
    A bit nervous. I finished the paper and found it ok but only had like 3 minutes to check over. I afraid I made some silly mistake like forgotten a hydrogen atom when drawing a molecule or something. :rolleyes:
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    :eek:
    (Original post by Haz Shah)
    Oh, appologies. My bad. I actually never thought that course still existed? Thought it was discontinued after the new OCR A.. anyways, How did it go buddy?
    Good! Because I was looking at this thread and thinking 'what?! I dont remember these questions!' and confusion quickly converted to panic.
    I was thinking. Oh God I've done it all wrong now :eek:
    So I'm glad we figured it out though :yes:

    I think it went ok, pretty hard (lots of 5/6 mark questions) but i'll wait and see.
    Salters should be discontinued though. Its truely ridiculous in parts (I'm sure anyone would say that about their exam boards though :rolleyes:)
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    Hey,
    What did everyone get for the ester question :\ ... the question with ethanoic acid and ethan-1,2-diol ?
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    Does anyone have the mark scheme for this? Also, what was the answer for the type of catalyst question on alkenes and alcohols? Last part, I said platinum.
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    what did youse say for the hight tensilefilm and the propetiesof pipes?
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    peoples thoughts on this paper
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    (Original post by thecdon)
    peoples thoughts on this paper
    Twas okay but i completely flunked that 7 mark IR question about alcohol E and product F.
    FML!! :cry: It was going so well till then
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    (Original post by CertifiedAngel)
    Twas okay but i completely flunked that 7 mark IR question about alcohol E and product F.
    FML!! :cry: It was going so well till then
    Oh same, I put alcohol E as pentan-1-ol and the product as aldehyde pentanal. I thought I got it right but then once I came out I realized that the reaction was under reflux and I was like oh ****. So yea, its either a carboxylic acid which is what I think it is because of the peaks other than the carbonyl or a ketone.

    What did others put for that?

    I think I should get some marks if the product is a carboxylic acid as the alcohol then needs to be pentan-1-ol, if its a ketone, it needs to be pentan-2-ol.

    Everything else was kind of alright.
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    (Original post by Unknown111)
    Oh same, I put alcohol E as pentan-1-ol and the product as aldehyde pentanal. I thought I got it right but then once I came out I realized that the reaction was under reflux and I was like oh ****. So yea, its either a carboxylic acid which is what I think it is because of the peaks other than the carbonyl or a ketone.

    What did others put for that?

    I think I should get some marks if the product is a carboxylic acid as the alcohol then needs to be pentan-1-ol, if its a ketone, it needs to be pentan-2-ol.

    Everything else was kind of alright.
    I put that it was propanoic acid due to the question saying that the alcohol was refluxed and the presence of what i thought was a c-o bond. But apparently is is a ketone because the infra red didnt show an o-h bond for a carboxylic acid
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    this forum is just making me feel worse haha !
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    Ah, that question.. E was Propan-2-ol .. Because of the Mr was 60 and the Ion Peak was on 45 I think, so the fragmented ion would be CH3CH2OH .. And F was an organic molecule formed.. If you oxidise an Alchol, it turns into an Aldehyde, and the Infra Red showed that there was a C=O bond, but no O-H bonds so it couldn't have been an Carboxylic Acid, and it ruled out a Ketone because of Alchol E.

    So E = Propan-2-ol, and F = C3H8O ..
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    How did everyone find this exam?
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    LOL, Major confusion. This is the OCR Salters B exam.

    For the property of the pipe I put because it was rigid, I had no idea.
    The tensile film was a carrier bag/plastic bag.
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    was a lovely exam! Got a mid-C last June, hope I've got at least 85% A.
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    (Original post by Haz Shah)
    Ah, that question.. E was Propan-2-ol .. Because of the Mr was 60 and the Ion Peak was on 45 I think, so the fragmented ion would be CH3CH2OH .. And F was an organic molecule formed.. If you oxidise an Alchol, it turns into an Aldehyde, and the Infra Red showed that there was a C=O bond, but no O-H bonds so it couldn't have been an Carboxylic Acid, and it ruled out a Ketone because of Alchol E.

    So E = Propan-2-ol, and F = C3H8O ..
    why wasnt F propan 2 one? secondary alcohol turn to ketones under reflux, hence the c=o bind on the IR. there was no O-H peak on the spectrum. propan 1ol could have only formed a carboxylic (it was under reflux)
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    oh i sed window replacemtn when windows smash?
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    last year, I got 45/150 on this paper LOL! this time, i smashed it
 
 
 
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