Hey there! Sign in to join this conversationNew here? Join for free

Edexcel A2 Chemistry Exams -6CH04 (14th June) and 6CH05 (22nd June) Discussion Thread Watch

    Offline

    3
    ReputationRep:
    (Original post by Don Pedro K.)
    Yeah it was 4.02. I got that wrong lol.
    I got 4.03 damn it


    Posted from TSR Mobile
    Offline

    2
    ReputationRep:
    (Original post by Don Pedro K.)
    I put that if you had too much phenol you wouldn't be able to measure initial rate or something like that.
    exactly cause it would react with the bromine
    Offline

    2
    ReputationRep:
    (Original post by Funky_Giraffe)
    What did you guys put for why you only use a relatively small amount of phenol?
    I think it was due to the fact that you wanted the INITIAL RATE so that's when t=0. If you had a large amount of phenol you would not see a colour change quickly so it wouldn't be the initial rate? Something along those lines is what I put
    Offline

    2
    ReputationRep:
    (Original post by Supermanxxxxxx)
    I got 4.03 damn it


    Posted from TSR Mobile
    Oh wait sorry it was 4.03 haha
    Offline

    7
    ReputationRep:
    Diprotic titration cuve question was hard, rest of the paper was OK though.

    With the NMR spectra question, I drew the right peaks (TMS reference, singlet, triplet and quartet) but I swapped the position of one of the peaks. How many marks do you think I'd lose?
    Offline

    1
    ReputationRep:
    (Original post by jess.olo)
    I think I got 4.03 or something like that !!
    yeah me too
    Offline

    1
    ReputationRep:
    (Original post by krishanj)
    For the pH of the acid using Ka1?
    Yeah
    Offline

    2
    ReputationRep:
    I definitely found this paper harder than any of the past papers :/
    Offline

    14
    ReputationRep:
    (Original post by scrlk)
    Diprotic titration cuve question was hard, rest of the paper was OK though.

    With the NMR spectra question, I drew the right peaks (TMS reference, singlet, triplet and quartet) but I swapped the position of one of the peaks. How many marks do you think I'd lose?
    I don't think you'll lose any mark for not scaling correctly as long as you state the area ratio
    I didnt draw TMS reference but I don't think it matters does it
    Offline

    2
    ReputationRep:
    (Original post by Supermanxxxxxx)
    I got 4.03 damn it


    Posted from TSR Mobile
    no wait I 4.3 as well why is it wrong?
    Offline

    2
    ReputationRep:
    (Original post by scrlk)
    Diprotic titration cuve question was hard, rest of the paper was OK though.

    With the NMR spectra question, I drew the right peaks (TMS reference, singlet, triplet and quartet) but I swapped the position of one of the peaks. How many marks do you think I'd lose?
    Same. We probably lost 1 mark tbh.
    Offline

    2
    ReputationRep:
    (Original post by Cpj16)
    no wait I 4.3 as well why is it wrong?
    You're not wrong
    Offline

    14
    ReputationRep:
    (Original post by Funky_Giraffe)
    C0balt how do you know when you have an excess ?
    I am not sure. I said no new precipitate appears if you add excess...
    Offline

    7
    ReputationRep:
    (Original post by Don Pedro K.)
    I definitely found this paper harder than any of the past papers :/
    I thought this too! but people are saying it was quite nice! what do you think the grade boundary for A* will be!?
    Offline

    2
    ReputationRep:
    (Original post by C0balt)
    I don't think you'll lose any mark for not scaling correctly as long as you state the area ratio
    I didnt draw TMS reference but I don't think it matters does it
    I didn't draw TMS either. I got the peaks the wrong way round for the quartet and singlet so my area ratio was technically incorrect (but the numbers were correct in relation to my diagram). So I would probably lose one mark right?
    Offline

    1
    ReputationRep:
    (Original post by scrlk)
    Diprotic titration cuve question was hard, rest of the paper was OK though.

    With the NMR spectra question, I drew the right peaks (TMS reference, singlet, triplet and quartet) but I swapped the position of one of the peaks. How many marks do you think I'd lose?
    Which way around did the peaks go? Was it Quartet, Singlet, Triplet?
    Offline

    1
    ReputationRep:
    ****ing hell this is the hardest paper ive ever sat for
    Offline

    14
    ReputationRep:
    (Original post by robinfairy978)
    Which way around did the peaks go? Was it Quartet, Singlet, Triplet?
    Yes
    Offline

    1
    ReputationRep:
    Guys judging from all the people you spoke to how do you think this exam was difficulty wise compared with past years?
    Offline

    2
    ReputationRep:
    For the phenol one would it be enough jist to say that it would take too long to change colour
 
 
 
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • Poll
    Would you like to hibernate through the winter months?
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

    Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

    Quick reply
    Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.