chem webwork

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?!?!?

asked by Anonymous
  1. What's the question?

    posted by DrBob222
  2. 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.)

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

    posted by Cecily
  4. its increasing halogen atom size...i just answered it and thankfully got it right

    posted by Anonymous
  5. Yes, it is increasing halogen atom size

    posted by Anonymous
  6. 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.

    posted by Awesome

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