#1 Which best describes how a computer would generate an electrostatic potential map for a given molecule?
1. It makes a rainbow of colors on the molecule.
2. It uses the dipole moment to arrange the colors.
3. It runs a "point positive charge" over the surface of the mapped molecule, and assigns color codes based on attraction/repulsion to this positive charge.
#2 Consider the molecule CF3H. Draw the structure for this molecule, then use it to assess each statement. Select all true statements.
1. The bond angles for this molecule will be approximately 120 degrees.
2. This molecule contains no dipole. It is nonpolar.
3. An electrostatic potential map of this molecule would show green all over.
4. An electrostatic potential map of this molecule would show a rainbow of colors with the red end of the rainbow at the H atom.
5. An electrostatic potential map of this molecule would show a rainbow of colors with the blue end of the rainbow at the H atom.
6. The bond angles for this molecule will be approximately 90 degrees.
7. The bond angles for this molecule will be less than 109.5 degrees.
8. This molecule is polar and its dipole runs along the C-H bond with the positive end of the dipole by the H atom.
9. This molecule contains no dipole. It is polar.
10. This molecule is polar because all molecules containing the highly electronegative F atom are polar.
11. This molecule is polar and its dipole runs along the C-H bond with the negative end of the dipole by the H atom.
12. The bond angles for this molecule will be approximately 109.5 degrees.