Problem Set 8

Problem Set 8 - Name Section Rec TA Side 1 of 3 Ch 1a,...

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Name Ch 1a, Problem Set Eight Section Side 1 of 3 Due Friday, Rec TA November 18, 2005 at 4 PM Problems 2 and 3 are designated ( ) as “no collaboration” problems. 1. (30 Points) Molecular size is governed by factors including bond lengths and atomic radii. For each pair below, identify which molecule is larger. Explain each decision on the basis of bond lengths, atomic radii, or both. a. O 2 or O 2 + b. HCl or HF c. NH 3 or PH 3 d. H 2 CCH 2 or HCCH e. SiBr 4 or CCl 4 f. NO or O 2 2. (40 Points) In large molecules it is often hard to determine the structure due to free rotation around single bonds. However the double and triple bonding arrangements in some compounds allow one to say a great deal about the structure. a. Draw the molecules H 2 CCCCH 2 and H 2 CCCCCH 2 . For each carbon, indicate the hybridization and the approximate bond angles. Draw the molecules graphically showing the basic π molecular orbitals. For example: C C H H H H b. One of these molecules has coplanar H
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This note was uploaded on 03/30/2010 for the course CH 1a taught by Professor Lewis during the Fall '08 term at Caltech.

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Problem Set 8 - Name Section Rec TA Side 1 of 3 Ch 1a,...

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