10.33 Predict the shape or geometry of the following mole- cules, using the VSEPR model.
a. SiF4 b. SF2 c. COF2 d. PCl3
10.34 Use the electron-pair repulsion model to predict the geometry of the following molecules:
a. GeCl2 b. NF3 c. SCl2 d. XeO4
10.35 Predict the geometry of the following ions, using the electron-pair repulsion model.
a. ClO3? b. PO43? c. SCN? d. H3O?
10.36 Use the VSEPR model to predict the geometry of the fol- lowing ions:
a. N3? b. BH4? c. SO32? d. NO2?
10.37 For each of the following molecules, state the bond an- gle (or bond angles, as appropriate) that you would expect to see on the central atom based on the simple VSEPR model. Would you expect the actual bond angles to be greater or less than this?
a. CCl4 b. SCl2 c. COCl2 d. AsH3
10.38 For each of the following molecules, state the bond an- gle (or bond angles, as appropriate) that you would expect to see on the central atom based on the simple VSEPR model. Would you expect the actual bond angles to be greater or less than this?
a. NCl3 b. CF2CF2 c. GeF4 d. OF2
10.39 What geometry is expected for the following molecules, according to the VSEPR model?
a. PF5 b. BrF3 c. BrF5 d. SCl4
(i) (ii)
(iii) (iv)
Practice Problems 413 10.32
What are the bond angles predicted by the VSEPR model about the carbon atom in the formate ion, HCO2?? Considering that the bonds to this atom are not identical, would you expect the experimental values to agree precisely with the VSEPR values? How might they differ?
10.40 From the electron-pair repulsion model, predict the geometry of the following molecules:
a. ClF5 b. SbF5 c. SeF4 d. TeF6
10.41 Predict the geometries of the following ions, using the VSEPR model.
a. SnCl5? b. PF6? c. ClF2? d. IF4?
10.42 Name the geometries expected for the following ions, ac- cording to the electron-pair repulsion model.
a. ICl2? b. BrF4? c. ClF6? d. ClF4? Dipole Moment and Molecular Geometry
10.43 (a) The