CHEM 316 - problem set 1.003

CHEM 316 - problem set 1.003 - Chemistry 316 Problem Set 1...

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Chemistry 316 Problem Set 1 Fall 2007 Solutions 1 Cl Cl Cl Cl O OH O OH sp 3 tetrahedral angle 109˚ sp linear angle 180˚ H O C C N H H 1. Draw the structure of 2-hydroxyacetonitrile, HOCH 2 CN, including unshared electron pairs. Use lines to show bonds. Do not show orbitals. Label each bond " σ " or " π ". Indicate the hybridization of each hybridized atom. Label the carbons and oxygen with their geometry and bond angles. 2. Indicate polarized bonds in these structures with the symbols " δ + " and " δ - ". Does each molecule have a dipole moment? 3. Sulfur dioxide, SO 2 , has a dipole moment. Draw a complete structure and predict its shape. (Sulfur is the central atom.) H C N H H H H 4. Explain the dramatic difference in boiling point between these isomers. bp -24 ˚C bp 78 ˚C σ σ σ σ σ σ π π δ + δ + δ + δ dipole δ δ δ δ δ + δ + C Cl H F H δ + δ + δ + δ δ δ O S O δ δ + The fact that SO 2 has a dipole moment shows that it is not linear, which means that the sulfur is not sp hybridized. The structure with the correct number of valence electrons shows sulfur with
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This homework help was uploaded on 04/09/2008 for the course CHEM 316 taught by Professor Kantorowski during the Fall '08 term at Cal Poly.

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CHEM 316 - problem set 1.003 - Chemistry 316 Problem Set 1...

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