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AQA CHEM4 discussion/unofficial mark scheme Watch

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    (Original post by ahsan_ijaz)
    ii think it mentioned apart from heat - sorry about it and wondering and i think you needed dilute naoh

    I'm pretty sure apart from heat was mentioned in part b not a though
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    (Original post by shiney101)
    I'm pretty sure apart from heat was mentioned in part b not a though
    hm yeah i put dilute naoh reflux - chromotography bt i think its distillation now
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    https://www.facebook.com/groups/148389988911787/
    Heres a page to complain to AQA
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    (Original post by logicmaryam)
    hey guys im updating the answers as i go along. please let me know if you know the order or marks or answers haha
    orders were 1 and 2 respectively
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    make a ms then mate
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    Absolutely disgusting, AQA yet again proving that any amount of revision is not worth it because we're probably going to fail anyway
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    (Original post by Bailey2j09)
    https://www.facebook.com/groups/148389988911787/
    Heres a page to complain to AQA
    Complaining isn't going to do anything, what's been done has been done
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    Is GL chromatography wrong?
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    (Original post by AngryRedhead)
    Complaining isn't going to do anything, what's been done has been done
    When others have complained it makes the exam board realise how hard it was and then they take that into consideration when making the grade boundaries
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    (Original post by ahsan_ijaz)
    hm yeah i put dilute naoh reflux - chromotography bt i think its distillation now
    I put chromatography too I think it should work because it's such a versatile separation technique.

    Forgot the heat under reflux though.
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    wouldnt q1) products have been Ch3COO- and H30+??
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    (Original post by stump-y)
    I put chromatography too I think it should work because it's such a versatile separation technique.

    Forgot the heat under reflux though.
    deffo needed dilute naoh and reflux
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    (Original post by ahsan_ijaz)
    deffo needed dilute naoh and reflux
    One mark less for me then Hopefully the grade boundaries will be lower than last year.
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    How many C peaks were there?
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    (Original post by iselhong)
    your equation is not balanced…
    Is it not? There's a positive charge on CH3CO+
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    (Original post by penguinpenny)
    Is it not? There's a positive charge on CH3CO+
    HNO3 +CH3COOH = CH3COO+ + H2O + NO3-
    there is a extra O in product side
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    I got that omg!!!!!
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    (Original post by RedNebula)
    I think it's CH3 O C(CH3)2 CH2CH2 OH
    Anybody else get this?...

    Posted from TSR Mobile
    CH3 O C(CH3)2 CH2CH2 OH
    That's exactly what quite a few of us got!
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    Question 9 wasn't it 6 carbons?
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    C6H1402

    61% Carbon

    11.9% Hydrogen

    27.1% Oxygen (100-11.9-61)

    what was that question, that's as much as I can remember!!
 
 
 
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