FSG Session 11.docx - CHMA10 FSG Session 11 Facilitator...

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CHMA10 FSG Session 11 Facilitator: Amir M. Chapter 10 – Chemical Bonding II: Molecular Shapes, Valence Bond Theory, and Molecular Orbital Theory 1) Place the following in order of increasing F-A-F bond angle, where A represents the central atom in each molecule. (Hint: Draw the Lewis structure, determine the geometry, and then find the corresponding angle) PF3 OF2 PF4⁺ a. PF3 < OF2 < PF4⁺ b. OF2 < PF3 < PF4⁺ c. OF2 < PF4⁺ < PF3 d. PF4⁺ < OF2 < PF3 e. PF4⁺ < PF3 < OF2 2)Give the approximate bond angle for a molecule with a trigonal planar shape. a.109.5° b.180° c.120° d.105° e.90 3)Determine the electron geometry (eg) and molecular geometry (mg) of CO32⁻.
CHMA10 FSG Session 11 Facilitator: Amir M.

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