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

OCR Chemistry A Exam Thread (Breadth - May 27 2016 and Depth - June 10 2016) Watch

    Offline

    0
    ReputationRep:
    Does anyone know what the grade boundaies would be for an A? Our teacher said its unlikely to be 80% as it usually is because its a new spec but im not too convinced? Im worried I might just slip below the grade boundary if its truly 80%
    Offline

    16
    ReputationRep:
    (Original post by 11...)
    for the enthalpy profile diagram. did u put N2 (g) and O2(g) as the reactants and N2O2 (g) as product.
    and +82kjmol-1 was the enthalpy change right
    I'm sure it was N2(g) + 1/2O2(g) and on products N2O(g)
    Offline

    16
    ReputationRep:
    (Original post by Jaysal63)
    Does anyone know what the grade boundaies would be for an A? Our teacher said its unlikely to be 80% as it usually is because its a new spec but im not too convinced? Im worried I might just slip below the grade boundary if its truly 80%
    I think 80% is a fair bet because both papers weren't that hard. It might be 77% but don't think it's going to be much lower than that
    Offline

    0
    ReputationRep:
    (Original post by asinghj)
    I think 80% is a fair bet because both papers weren't that hard. It might be 77% but don't think it's going to be much lower than that
    Urgh thats a shame ill be either relieved or suicidal on results day then
    Offline

    21
    ReputationRep:
    (Original post by Jaysal63)
    Urgh thats a shame ill be either relieved or suicidal on results day then
    I think I've got around 113/140. It is tight. Hopefully grade boundaries will be low enough
    Offline

    0
    ReputationRep:
    (Original post by SGHD26716)
    I think I've got around 113/140. It is tight. Hopefully grade boundaries will be low enough
    on the depth im floating around 55 ish hopefully i did better in the breadth
    Offline

    4
    ReputationRep:
    well scared for results day. I need AAAA in order to get into medicine really. hope the grade boundaries are low as well, cos these unis like UCL look at the ums as well. that is how deep medicine is. omg
    Offline

    16
    ReputationRep:
    (Original post by Jaysal63)
    Urgh thats a shame ill be either relieved or suicidal on results day then
    You'll be fine don't worry
    Offline

    4
    ReputationRep:
    S1 next week. how r u guys feeling about that if you do maths??? Maths is the easiest subject I take I reckon. C1 and C2 banged, although there are comments about the C1 being nasty, and I checked the unofficial mark scheme and it was great. hope the same for S1 .
    to get an A* at A level, you need to get 80% average across all 6 modules c1, c2, s1, c3, c4, m1. and 90% average between c3 and c4. so c3 and c4 are the most important.
    Offline

    2
    ReputationRep:
    (Original post by 11...)
    S1 next week. how r u guys feeling about that if you do maths??? Maths is the easiest subject I take I reckon. C1 and C2 banged, although there are comments about the C1 being nasty, and I checked the unofficial mark scheme and it was great. hope the same for S1 .
    to get an A* at A level, you need to get 80% average across all 6 modules c1, c2, s1, c3, c4, m1. and 90% average between c3 and c4. so c3 and c4 is the most important.
    Yeah I agree, c1 and c2 were good. M1 was also good so hopefully s1 will be the same next week. And then d1 will hopefully be good but never know with that one. Good luck. Do you think you did well today?
    Offline

    4
    ReputationRep:
    (Original post by alfmeister)
    Yeah I agree, c1 and c2 were good. M1 was also good so hopefully s1 will be the same next week. And then d1 will hopefully be good but never know with that one. Good luck. Do you think you did well today?
    yeah it went really well. in fact better than the breadth. what about u?
    Offline

    1
    ReputationRep:
    Does anyone know when we get the results ??
    Offline

    2
    ReputationRep:
    (Original post by 11...)
    yeah it went really well. in fact better than the breadth. what about u?
    Good to hear, yeah it went well today. I think I I lost 5-7 marks on silly things. Also depends how strict they are
    Offline

    4
    ReputationRep:
    august 18th results day at the same time
    Offline

    4
    ReputationRep:
    less hydrogen is produced because there are fewer moles of the metal used.
    do u think I got the mark or do I have to say cos the atom has a larger relative atomic mass as well for only a mark, cos u know ocr can be soooooooooooooooooooo specific in the newwwww spec
    Offline

    13
    ReputationRep:
    (Original post by 11...)
    less hydrogen is produced because there are fewer moles of the metal used.
    do u think I got the mark or do I have to say cos the atom has a larger relative atomic mass as well for only a mark, cos u know ocr can be soooooooooooooooooooo specific in the newwwww spec
    we don't know as the mocks weren't properly standardised etc

    I just road loads extra to ensure I get a mark (without wrong info ofc!)
    • Community Assistant
    • Welcome Squad
    Offline

    12
    ReputationRep:
    Community Assistant
    Welcome Squad
    (Original post by 11...)
    for the difference between sigma and pi bond. I put sigma bond has a higher electron density than the pi bond. do u guys think i got a mark here
    No, a pi bond does not have a higher electron density.

    A double bond (i.e a sigma + pi) has a higher electron density than a single bond.

    I spoke about the distribution of the electron density.
    Offline

    16
    ReputationRep:
    (Original post by harryleavey)
    No, a pi bond does not have a higher electron density.

    A double bond (i.e a sigma + pi) has a higher electron density than a single bond.

    I spoke about the distribution of the electron density.
    I think the simple definitions would be enough, so I wrote
    sigma bond is direct overlap of orbitals and pi bond is sideways overlap of p orbitals
    Offline

    0
    ReputationRep:
    Unofficial mark scheme for this paper??
    Offline

    2
    ReputationRep:
    Do you think that me writing that the bond enthalpy for sigma is stronger than pi bond for the difference is correct or not
 
 
 
  • 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
    Brussels sprouts
  • 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.