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Electron Geometry and Molecular Geometry

  1. Feb 9, 2012 #1
    1. The problem statement, all variables and given/known data
    Determine the electron geometry and molecular geometry or the underlined carbon in CH3CN.

    A) tetrahedral/tetrahedral
    B) linear/trigonal planar
    C) trigonal planar/bent
    D)linear/linear
    E)trigonal planar/trigonal planar

    I'm not really sure how to structure this molecule and I also don't know what it means when it wants the electron geometry and molecular geometry for that specific carbon. all the other problems we have done would ask for the electron geometry and molecular geometry for the molecule as a whole.
     
  2. jcsd
  3. Feb 13, 2012 #2

    chemisttree

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    The molecular geometry of water is planar... three points define a plane. The electron geometry of water is roughly tetrahedral since the electrons involved in bonds between the hydrogen and oxygen and the two remaining lone pairs on the oxygen lie along roughly tetrahedral axes.

    Apply that analysis to the underlined carbon in CH3CN.
     
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