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

    9
    ReputationRep:
    (Original post by omar5478)
    I got this from wikipedia which shows that the answer is probably D

    Attachment 539561Attachment 539561539563
    I agree with you because I also made this choice!
    • Thread Starter
    Offline

    2
    ReputationRep:
    (Original post by omar5478)
    I got this from wikipedia which shows that the answer is probably D

    Link:https://en.m.wikipedia.org/wiki/Catalytic_reforming

    Attachment 539561
    Aw man! :banghead::bawling:
    Offline

    2
    ReputationRep:
    (Original post by omar5478)
    I got this from wikipedia which shows that the answer is probably D

    Link:https://en.m.wikipedia.org/wiki/Catalytic_reforming

    Attachment 539561
    wth is this question is about reforming not aromatization etc....
    Offline

    3
    ReputationRep:
    Same here 😍
    Offline

    3
    ReputationRep:
    Guys what was the empirical formal of the hydrocarbon in the Mcq question 😂?
    Offline

    5
    ReputationRep:
    (Original post by Hamadtype-)
    wth is this question is about reforming not aromatization etc....
    It is written at the top that these are the four major "catalytic reforming reactions" not aromatization
    Offline

    5
    ReputationRep:
    (Original post by Sandy_Vega30)
    Aw man! :banghead::bawling:
    Don't worry though. Unlike most people here, I think the grades would be relatively low (like 63-65)
    Offline

    1
    ReputationRep:
    (Original post by Mimiastc)
    Guys what was the empirical formal of the hydrocarbon in the Mcq question 😂?
    I got CH2
    Offline

    9
    ReputationRep:
    Name:  image.jpeg
Views: 64
Size:  203.9 KB

    So this is the verdict according to CGP. It says that alkanes are reformed into cycloalkanes and aromatic hydrocarbons.
    Offline

    2
    ReputationRep:
    what was the answer for the ppm question and the number of atoms in an element (cant remember the exact element)?
    Offline

    3
    ReputationRep:
    (Original post by Magdah Omer)
    I got CH2
    But there was a O too it was the one with the percentage abundences 😂
    Offline

    9
    ReputationRep:
    (Original post by mr.holmes)
    what was the answer for the ppm question and the number of atoms in an element (cant remember the exact element)?
    For the PPM you had to divide by a million then times by a thousand (can't remember the actual values). The number of atoms in the compound they gave you has to be counted, and multiplied by the mole and again multiplied by Avogadro's constant.
    • Thread Starter
    Offline

    2
    ReputationRep:
    (Original post by mr.holmes)
    what was the answer for the ppm question and the number of atoms in an element (cant remember the exact element)?
    ppm - 8x10^-3g

    No. of atoms in an element - there were 5 atoms, so 3.0x10^24.
    Offline

    1
    ReputationRep:
    (Original post by Mimiastc)
    But there was a O too it was the one with the percentage abundences 😂
    ohhh sorry i was talking about the alkenes one
    for that one i think i got c2h40
    Offline

    2
    ReputationRep:
    Im totally failing if grade threshold is 68 or 67😢😢😢
    Offline

    2
    ReputationRep:
    ok so what do you expect the grade boundaries to be (lower than the January sessions)?
    Offline

    2
    ReputationRep:
    (Original post by Sandy_Vega30)
    It made sense because large compounds like Decane are reformed to cyclohexane and stuff. I got side tracked by that. Smaller molecules such as C4H10 are reformed into an alkene and H2. SO, for our case, i think its safe to say that A is the correct answer.
    Exactly *_*
    Offline

    2
    ReputationRep:
    What assumption u made ? I wrote Carbon has Ar of 12 in mass spectrometry question
    Offline

    2
    ReputationRep:
    (Original post by mr.holmes)
    ok so what do you expect the grade boundaries to be (lower than the January sessions)?
    I do hope so this paper was far more trickier than jan16
    Offline

    2
    ReputationRep:
    (Original post by MrBioBombastic)
    Exactly *_*
    but B also had two alkenes so couldn't that also be correct ( it also had hydrogen)
 
 
 
  • 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
    Brexit voters: Do you stand by your vote?
  • 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

    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.