chem webwork

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A. Increasing halogen atom size.
B. Decreasing acid strength.
C. Shortening of the C-C bond.
D. Increasing electronegativity.
E. Higher dipole values going from F to Cl to Br.


cant paste the spartan stuff... whats the answer?!?!?

  • chem webwork -

    What's the question?

  • chem webwork -

    For fluoracetic acid the highest Boltzmann distribution is when the dihedral angle is at 0 degrees. However, going from chloro- to bromoacetic acid, an increasing dip in the Boltzmann distribution occurs at 0 degrees. What is responsible for this "dip?" (HINT: look at how the structure of the molecule changes as the halogen atom rotates around toward the hydrogen atom attached to the oxygen atom.)

  • chem webwork -

    I can tell you its NOT
    decreasing acid strength
    and its NOT
    Increasing electronegativity..
    your guess is as good as mine.. : //

  • chem webwork -

    its increasing halogen atom size...i just answered it and thankfully got it right

  • chem webwork -

    Yes, it is increasing halogen atom size

  • chem webwork -

    It is increasing halogen atom size...

    For those who care, look at the plots in Spartan and you can automatically rule out Increasing Electronegativity and higher dipole values.

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