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

    10
    ReputationRep:
    I understand may be fairly easy but I can't seem to wrap my head round the idea of yield...

    "In an organic reaction, alcohol was oxidised to a ketone. The reaction can be represented by:

    C3H8O + [O] ----> C3H6O + other products

    Given that 100g of product was obtained by 125 of alcohol, calculate the % yield of the ketone"

    I've gotten both 96.7% and 82.8%. Are either of these correct?

    Thanks
    • Thread Starter
    Offline

    10
    ReputationRep:
    bump


    Sent from my iPhone using Tapatalk
    Offline

    17
    ReputationRep:
    58 / 60 = 96.7 % is definitely wrong.

    You needed to work out the number of mol of the alcohol, then work out how many mol of ketone and therefore the theoretical mass of ketone, then work out the yield to be 82.8 %.
 
 
 
  • 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
    Did TEF Bronze Award affect your UCAS choices?
  • 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.