Exam_3_Sample - 1[35 pts For each of the following...

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1. [35 pts] For each of the following molecules or ions: o draw the most stable Lewis structure, indicating any nonzero formal charges. Include equivalent resonance forms when applicable; t Apply VSEPR theory to predict the molecular geometry around the central atom. Be sure to state the geometrical arrangement of the atoms (as opposed to that of the bonds + lone pairs). An appropriate 3-D sketch is required. T For items a-c only , specify the type of hybridization for the central atom. a. NCl 3 b. CO 3 2 c. BF 4 This problem continues on the next page. b
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d. NNN e. IF 4 + 2. [10 pts] Draw a Lewis structure for the PCl 5 molecule. Then draw an orbital energy level diagram for the phosphorus atom in the molecule, including appropriate electron occupancy . On your energy level diagram, clearly indicate with a * symbol the phosphorus orbitals that are involved in orbital overlap to form the PCl 5 compound – before hybridization. You do not need to work out the hybridization for this problem.
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3. [15 pts.]
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This note was uploaded on 04/18/2008 for the course CHEM 115 taught by Professor Drucker during the Spring '08 term at Wisc Eau Claire.

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Exam_3_Sample - 1[35 pts For each of the following...

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