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Formal charge help needed!

Discussion in 'MCAT Study Question Q&A' started by sdp07, May 15, 2014.

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  1. sdp07

    sdp07

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    Oct 18, 2012
    What would be formal charge on the double bonded Fluorine and the single bonded Oxygen? Thanks!

    [​IMG]
     
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  3. Teleologist

    Teleologist 2+ Year Member

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    Jul 7, 2013
    on your 6
    Depends on what else is attached to both atoms. Your picture is broken.
     
  4. Chrisz

    Chrisz 2+ Year Member

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    Feb 18, 2014
    Fluorine makes one bond, oxygen makes two bonds, confused what u talking about
     
  5. tdod

    tdod 5+ Year Member

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    Oct 30, 2011
    I can't see your picture... but unless double bonded F is usu. +1 and single bonded O is –1
     
  6. Teleologist

    Teleologist 2+ Year Member

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    Jul 7, 2013
    on your 6
    If single bonded, F is always 0. Not sure where you pulled +1 from.
     
  7. SuperSneaky24

    SuperSneaky24

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    Nov 27, 2013
    ? I was taught that F is always -1 when dealing with oxidation numbers. Unless you're talking about F2?
     
  8. Teleologist

    Teleologist 2+ Year Member

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    Jul 7, 2013
    on your 6
    This thread is about formal charge.

    Also in diatomic fluorine the oxidation state of fluorine is 0. Not +1.
     
  9. Chrisz

    Chrisz 2+ Year Member

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    Feb 18, 2014
    I guess the he is saying once the fluorine make two bonds with the other atoms, then there is a plus charge on the fluorine, but this is highly unlikely. Fluorine is highly electronegative by itself, a positive charge on fluorine is highly unstable
     
  10. Teleologist

    Teleologist 2+ Year Member

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    Jul 7, 2013
    on your 6
    There's a positive formal charge yes. Let's be specific about charge. There probably isn't going to be say a positive partial charge too.
     
  11. sdp07

    sdp07

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    Oct 18, 2012
    My apologies for the image. I uploaded it with this reply. Hope it works.
     

    Attached Files:

    Teleologist likes this.
  12. Chrisz

    Chrisz 2+ Year Member

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    Feb 18, 2014
    for this molecule, O=-1 and f=+1, N=+1, the overall charge of the molecule is +1, the charge separation in this case is stabilized by resonance, or conjugation (some people would like to use this term to describe the effect more precisely)
     
  13. Teleologist

    Teleologist 2+ Year Member

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    Jul 7, 2013
    on your 6
    I hope you mean the single-bonded O.
     
  14. Chrisz

    Chrisz 2+ Year Member

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    Feb 18, 2014
    Yup, the only oxygen that makes one bond
     
  15. sdp07

    sdp07

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    Oct 18, 2012
    Oh ok now I see where the +1 for the fluorine came from! Thanks!
     

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