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    (Original post by shiney101)
    For the stitches question I wrote that it was biodegradable and could be hydrolysed whereas the polyalkene was strong non polar etc
    Did I have to mention therefore it can be broken down by bodily fluids?
    The more and more I think about the paper I'm getting so worried about it.
    Also for the last question I did the structure as the tertiary alcohol that everyone mentioned, how many marks do you think I'd get with like the structures I drew and pointing out that there was an OH alcohol and a C-o bond using the IR values?
    I said that it has permanent dipole-permanent dipole forces between chains, stronger than vanderwaals of polypropene
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    H is not an R group. The 3.1-3.9 is for an ether group.
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    (Original post by shiney101)
    For the stitches question I wrote that it was biodegradable and could be hydrolysed whereas the polyalkene was strong non polar etc
    Did I have to mention therefore it can be broken down by bodily fluids?
    The more and more I think about the paper I'm getting so worried about it.
    Also for the last question I did the structure as the tertiary alcohol that everyone mentioned, how many marks do you think I'd get with like the structures I drew and pointing out that there was an OH alcohol and a C-o bond using the IR values?
    Yeah stitches need to dissolve. Only unless you're using titanium staples should they remain!
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    (Original post by lishakb97)
    no you're right
    Thank you so much was worried about this
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    (Original post by the1pedro)
    Add water
    Acyl chloride will give off white misty fumes
    Haloalkane will show no change
    Correct
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    What did everyone put for the relationship bewteen chiral carbons or something like that?
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    (Original post by amsib)
    long story short 2016 is going to be the year with no vets, medics or dentists
    Thanks aqa
    Spoiler:
    Show
    :congrats:
    Salty
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    non superimposable mirror images of each other
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    (Original post by FireBLue97)
    CH3CO + intermediate reactive species 1 mark
    use this to show electrophilic substitution reaction 2 marks
    Is this right ? or did you have to give the whole equation to show the reactive intermediate being formed with alcl3
    I think the mechanism was 3 marks.

    One mark for arrow from benzene to electrophile
    One mark for + in benzene ring
    One mark for arrow from H into benzene ring
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    (Original post by FireBLue97)
    non superimposable mirror images of each other
    Stereoisomers?
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    (Original post by shiney101)
    For the stitches question I wrote that it was biodegradable and could be hydrolysed whereas the polyalkene was strong non polar etc
    Did I have to mention therefore it can be broken down by bodily fluids?
    The more and more I think about the paper I'm getting so worried about it.
    Also for the last question I did the structure as the tertiary alcohol that everyone mentioned, how many marks do you think I'd get with like the structures I drew and pointing out that there was an OH alcohol and a C-o bond using the IR values?
    thats what i did, ran out of time, just mentioned the bonds and stuff form the spectra, was trying to figure out the actual structure when i heard 4 words created by the devil himself..."put your pens down"
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    (Original post by RedNebula)
    You have 7 carbons in that? I thought it was only supposed to be 6?

    Posted from TSR Mobile
    (CH3)2CH-O-CH(CH3)-CHOH you're right, just wrote it wrong on here.
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    (Original post by Anam)
    What did everyone put for the relationship bewteen chiral carbons or something like that?
    They're optical isomers.

    I feel like maybe it should that they're mirror images of each other?
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    (Original post by amsib)
    long story short 2016 is going to be the year with no vets, medics or dentists
    Thanks aqa
    Spoiler:
    Show
    :congrats:
    Agreed, which is ridiculous seeing as the country desperately needs more people in these (and similar) professions!
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    lool i was wrtiting for 3 minutes after being told to stop. \\\\\\\\\\had to finish a question.
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    Would I get the mark if I drew the structure of CH3COOH2+ as this?

    http://puu.sh/psyuI/4bfcfcec2e.png
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    (Original post by Suits101)
    They're optical isomers.

    I feel like maybe it should that they're mirror images of each other - but I think that's racemates only?
    I just put theyre isomers of eachother fgs
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    (Original post by moogle666)
    i wrote that too & i know a few who did. I don't see why it would be wrong
    Same 0_0
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    I put this too
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    (Original post by Suits101)
    They're optical isomers.

    I feel like maybe it should that they're mirror images of each other?
    i said reflect plain polarised light in opposite directions.
 
 
 
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