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Homework Help: Lewis structure, hybridization and VSEPR

  1. Apr 7, 2010 #1
    1. The problem statement, all variables and given/known data
    Consider the related molecules POF2-
    and POF3. Choose all the following statements that are correct for both molecules.

    2. Relevant equations
    A) P atom is sp3-hybridised
    B) The F-P-F bond angle will be approximately 109.5 degrees
    C) Geometry around he P centre is tetrahedral
    D) Number of valence electrons for the molecule is 28
    E)The bonds between P and O are a sigma and pi bond
    F)Minimised formal charge on P is 0.


    3. The attempt at a solution
    I have found the general structure of both molecules.
    .............O
    .............||
    .............P
    ........../..|..\
    ........F...F...F
    POF3

    ...............O
    ...............|
    ...............P:(lone pair)
    ............./...\
    ............F....F
    POF2-

    I know D and F are wrong answers. I think the other 4 are correct. Help please

    Thanks.
     
  2. jcsd
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