Experiment 3 In-Lab Worksheet

Experiment 3 In-Lab Worksheet - Chem 120, Autumn Quarter...

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Chem 120, Autumn Quarter 2011 Page 1 of 4 Name : Quiz Section No. : EXPERIMENT 3 – MOLECULAR GEOMETRY IN-LAB WORKSHEET Table 1. Using Lewis structures and VSEPR to predict molecular shape: Molecule: Total valance electron count: Lewis Structure with correct shape according to VSEPR theory. No. of Groups on “central” atom: Electron- group geometry Molecular geometry 1) CO 2 2) H 2 O 3) NH 3 4) NH 4 + 5) CH 3 Cl 6) CCl 4 *Remember, the geometry of the electron groups around a central atom and the geometry of the atoms about a central atom will be the same, when there are no lone electron pairs (so when all electrons about the central atom are shared. A pair of electrons represents a bond).
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Chem 120, Autumn Quarter 2011 Page 2 of 4 Name : Quiz Section No. : Table #2: Molecules with 4 Electron Groups about the Central Atom. Groups Present: Total number of groups Draw the correct Lewis structure with the 3-D shape Electron–pair geometry* Molecular geometry** Central Atom #1 4 single
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Experiment 3 In-Lab Worksheet - Chem 120, Autumn Quarter...

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