Qn: Draw lewis structure, determine electron and molecular geometries, and approximate bond angles
  1. Use the VSEPR model to supply the following information (draw lewis structure, determine electron and molecular geometries, and approximate bond angles)

 CHBr3                                                                             Electron domain geometry:____________________

Molecular geometry:_________________________  

Approximate bond angles:_____________________

Hybridization of central atom:  sp  sp2  sp3  sp3d  sp3d2

polarity of molecule:                polar       nonpolar

                                           Lewis Structure

 BF3                                                                                  Electron domain geometry:____________________

Molecular geometry:_________________________  

Approximate bond angles:_____________________

Hybridization of central atom:  sp  sp2  sp3  sp3d  sp3d2

polarity of molecule:                polar       nonpolar

                                         Lewis Structure

 ClF5                                                                                 Electron domain geometry:____________________

Molecular geometry:_________________________  

Approximate bond angles:_____________________

Hybridization of central atom:  sp  sp2  sp3  sp3d  sp3d2

polarity of molecule:                polar       nonpolar

                                         Lewis Structure

XeF4                                                                                 Electron domain geometry:____________________

Molecular geometry:_________________________  

Approximate bond angles:_____________________

Hybridization of central atom:  sp  sp2  sp3  sp3d  sp3d2

polarity of molecule:                polar       nonpolar

                                         Lewis Structure

  SeF4                                                                               Electron domain geometry:____________________

Molecular geometry:_________________________  

Approximate bond angles:_____________________

Hybridization of central atom:  sp  sp2  sp3  sp3d  sp3d2

polarity of molecule:                polar       nonpolar

                                           Lewis Structure

 O3                                                                                    Electron domain geometry:____________________

Molecular geometry:_________________________  

Approximate bond angles:_____________________

Hybridization of central atom:  sp  sp2  sp3  sp3d  sp3d2

polarity of molecule:                polar       nonpolar

                                         Lewis Structure

 BeCl2                                                                              Electron domain geometry:____________________

Molecular geometry:_________________________  

Approximate bond angles:_____________________

Hybridization of central atom:  sp  sp2  sp3  sp3d  sp3d2

polarity of molecule:                polar       nonpolar

                                         Lewis Structure

BrF3                                                                                  Electron domain geometry:____________________

Molecular geometry:_________________________  

Approximate bond angles:_____________________

Hybridization of central atom:  sp  sp2  sp3  sp3d  sp3d2

polarity of molecule:                polar       nonpolar

                                         Lewis Structure

  •  List the total number of pi (p)and sigma (s) bonds in the following molecule

H-CºC-CºC-H           s bonds:_________________ pbonds:______________

09_43_Figure_L
09_43_Figure_L
  •  Draw the molecular orbital diagrams for the following molecules determine the bond order and magnetic properties.

N2                                     N2+                                          N22-                                         N23-

Bond Order:__________           BO:__________             BO:__________                      BO:__________

Paramagnetic  diamagnetic                            Paramagnetic  diamagnetic                 Paramagnetic  diamagnetic              Paramagnetic  diamagnetic

  1. Which molecule has the shortest bond?                         N2        N2+       N22-       N23-
  • Which molecule has the highest bond enthalpy?            N2        N2+       N22-       N23-
  • Which molecule has the weakest bond?                         N2        N2+       N22-       N23-
  • 09_Pg375_UnFigure_4_L09_Pg375_UnFigure_4_L09_Pg375_UnFigure_4_LGive approximate values for the indicated bond angles in the following molecules.
09_Pg375_UnFigure_4_L
  1. _______
  2. _______
  3. _______
  4. _______
  5. _______
  6. _______
  7. _______
  8. ________
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