Turn on thread page Beta
    Offline

    0
    ReputationRep:
    It was actually a reasonably nice NMR question that quite a few people seem to have got right!
    Offline

    15
    ReputationRep:
    Hypothetically speaking of course, but, if someone, certainly not me, were to have calculated the total entropy change correctly, then somehow managed to round it to a value it didn't even round to and then write that on the line, would they still give the mark when they saw the correct answer, and just ignore the incorrect answer written on the line?
    Offline

    10
    ReputationRep:
    Why did the molecule with bromine and chlorine have an overall dipole?
    Offline

    0
    ReputationRep:
    I learnt how to do nmr on some video on youtube of some american teacher looool
    Offline

    0
    ReputationRep:
    (Original post by SmileyGurl13)
    Why did the molecule with bromine and chlorine have an overall dipole?
    When Br and Cl are on the same side, it is negative on one side but less negative on another side. This leads to high electronegativity difference between the two sides.
    Offline

    0
    ReputationRep:
    ahh run out of time, missed out the last 2 pages on calculations and enthalpy diagram thingy completely! Plus so aanoyed with myself for not revising easy stuff like that curly arrow diagram.. I had to improvise but hopefully will get me a couple of marks :/ Also, I hate 1 markers and there were quite a few ...
    Offline

    7
    ReputationRep:
    What was the first answer to the question? It was a challenging but then again simple start to the exam?
    I put phenyl amine, then drew a phenol with 2 amino groups, then temperature below 5 degrees and then electrophillic substituiton and then was was the next one about the prediction???
    Offline

    0
    ReputationRep:
    what shape did you guys draw for the SF6 ( i think it was)
    Offline

    0
    ReputationRep:
    (Original post by SmileyGurl13)
    Why did the molecule with bromine and chlorine have an overall dipole?
    I wrote something about the difference in electronegativity. So overall it has a dipole and the other one for why the molecule didnt have a dipole i said that althogh the molecule is polar, the bonds are symmetrical and so the charges coincide so there is no overall dipole.
    Offline

    16
    ReputationRep:
    (Original post by Legit)
    I thought that paper was pretty good!

    Did anyone get this for NMR?

    Yeh Except I put the Br on the top and the bottom.
    Offline

    0
    ReputationRep:
    (Original post by ManPowa)
    What was the first answer to the question? It was a challenging but then again simple start to the exam?
    I put phenyl amine, then drew a phenol with 2 amino groups, then temperature below 5 degrees and then electrophillic substituiton and then was was the next one about the prediction???
    Wasn't it just 1,3 diaminobenzene?
    Offline

    0
    ReputationRep:
    Anyone else feel like the 4 mark questions looked simple until you started writing and realised an easy question takes hours to write? Haha. The paper was okay, although CF6 was a crazy-arse dot cross diagram, and the mass calculation at the end was beast. I skipped over a few questions, but it went okay overall I think. I absolutely hope the grade boundary isn't too high. The entropy question and the fuse part was odd, S(total) was very large and +ve, then they went and asked about a fuse just to **** with you. Who else made up a load of bull for the farmer question too?
    Offline

    0
    ReputationRep:
    (Original post by pav)
    what shape did you guys draw for the SF6 ( i think it was)
    Octahedral! I think the bond angle was supposed to be 90 but I put 190.5. Fail.
    Offline

    16
    ReputationRep:
    So I got the entropy stuff all wrong aswell ****!
    Offline

    0
    ReputationRep:
    What did everyone get for the mass? I got 12g.

    I got it through n = V x C / 1000 then n = m / Mr??
    Offline

    0
    ReputationRep:
    I got ph7.2 for the buffer question

    Intermediate question - Halogenoalkene» alcohol » carboxyllic acid

    What did people circle for the pharmacophore? I circled the carboxyllic acid bit :/

    I got 112kg for the mass question at the begining

    The first ever question was benzene ? Coz it said ORGANIC
    Offline

    9
    ReputationRep:
    (Original post by Tetanus)
    Octahedral! I think the bond angle was supposed to be 90 but I put 190.5. Fail.
    Definately forgot to even put a bond angle! oh well..I'd probably have got it wrong anyway
    Offline

    0
    ReputationRep:
    (Original post by Tetanus)
    Octahedral! I think the bond angle was supposed to be 90 but I put 190.5. Fail.
    Really? I put 60. This paper is really depressing me. :')
    Offline

    0
    ReputationRep:
    (Original post by Tetanus)
    What did everyone get for the mass? I got 12g.

    I got it through n = V x C / 1000 then n = m / Mr??
    I got 12g to and did it in the same way as you did. Im starting to doubt my answer now seeing as alot of people on here got a different answer.
    Offline

    7
    ReputationRep:
    (Original post by Tetanus)
    Wasn't it just 1,3 diaminobenzene?
    Sorry lol when i meant phenol i actually meant benzene hahaha so yh 1,3 - diamino benzene
 
 
 
Reply
Submit reply
Turn on thread page Beta
Updated: December 10, 2011

University open days

  1. Loughborough University
    General Open Day Undergraduate
    Fri, 21 Sep '18
  2. University of Cambridge
    Churchill College Undergraduate
    Fri, 21 Sep '18
  3. Richmond, The American International University in London
    Undergraduate Open Day Undergraduate
    Fri, 21 Sep '18
Poll
Which accompaniment is best?

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

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