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    (Original post by Suits101)
    That's fine.
    Was P the RCH2Cl and Q the acyl chloride?
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    (Original post by badaman)
    Medicine yes *****ing myself now

    Posted from TSR Mobile
    I'm not going to get an A in chemistry because of that paper
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    The lowest mark needed for an A* was 83/100 which happened in jan10,june10 and jan 11. In them years, 73/74 was an A. So I'm guessing the grade boundaries will be similar to this.
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    Worst Chem 4 paper ever
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    it was definitely 8 peaks...

    what a SNEAKY, PIECE OF CRAP paper - AQA have it in for us this year! it was manageable (except for q9) but it may as well have been called 'Acyl Chlorides 101'.
    Also wtf was Chem 1 doing in there - hydrogen bonds, percentage mass, molecular formula ?!?!
    psshht A in chem gone
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    (Original post by FormlessBowl)
    Wouldnt any alcohol also work in the same way as water?
    I believe so! Let me edit my post I didn't see that.
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    What was the eqn to the first question where propanoic acid acts as a base and reacts with nitric acid????
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    (Original post by Suits101)
    I've just checked markschemes:

    Why is chloroethanoic acid a stronger acid than ethanoic acid? (1)

    1 mark for:

    Cl is (more electronegative so) withdraws electrons
    OR negative inductive effect of Cl

    Second mark for:

    Weakens O-H bond
    OR reduced negative charge on COO-
    OR stabilises COO- (more)


    For distinguishing between P and Q:

    Reagent: AgNO3 OR Na2CO3/NaHCO3 OR water OR named indicator
    P: no visible change/no reaction
    Q: (white) ppt OR effervescence/CO2/fumes/exothermic OR fumes/smell OR acid colour

    Words in brackets aren't needed
    Are u sure about the p and q one????? Cus I put Agno3
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    If I spelt Nucleophilic as 'Nucleophillic' , will I get penalised?

    Somebody please come up with a mark scheme
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    (Original post by Nancyeponine)
    There's no point the stitches one is a suggest so it's meant to be hard and it was on the syllabus anyway because the answer was it hydrolyses and so can he removed post surgery
    no it was an easy question, the answer was it contained polar bonds so would (biodegrade) by themselves
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    (Original post by PaddysChemistry)
    Anyone get OH-CH2-CH2-C(CH3)2-O-CH3 for 9?
    Name:  ImageUploadedByStudent Room1465921486.693938.jpg
Views: 253
Size:  70.9 KB
    I thought there had to be a group like this?


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    (Original post by Cadherin)
    Was P the RCH2Cl and Q the acyl chloride?
    I'm going to be honest I'm unsure.

    I believe that was right.
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    (Original post by Ginpls)
    What was the eqn to the first question where propanoic acid acts as a base and reacts with nitric acid????
    The propanoic acid accepts a H+ and the nitric acid becomes NO3-


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    (Original post by Mammothman)
    Yes I got exactly that, and using the hnmr data deduced that it could only be that...then spent all my spare time trying to figure out alternate structures that didn't involve a tertiary alcohol...of which there were none.
    there is. i think i got the right answer
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    for last question i got


    CH3-CH2-CCH3(OH)-CH2-CH2OH-CH3

    think it's definitely wrong, but hey ho
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    (Original post by minjinoor)
    it was definitely 8 peaks...

    what a SNEAKY, PIECE OF CRAP paper - AQA have it in for us this year! it was manageable (except for q9) but it may as well have been called 'Acyl Chlorides 101'.
    Also wtf was Chem 1 doing in there - hydrogen bonds, percentage mass, molecular formula ?!?!
    psshht A in chem gone
    I can assure you it was 9 peaks.
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    is the unofficial mark scheme up yet
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    (Original post by medscoolhopeful)
    Yep! Just trying to forget about today and move on
    Same but it's not working :'((((

    (Original post by Capsicle102)
    Is that OCR? If so, yes
    Another paper from AQA
    Spoiler:
    Show
    Unfortunately.
    Good luck though!

    (Original post by HannahC-H)
    Yah :-(((((((((

    Awww we'll get through this.... (Maybe)
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    I said it was more soluble and so is more soluble in bodily fluids- blood, water
 
 
 
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