Organic Chemistry - Sample Mid-Term 1

Organic Chemistry - Sample Mid-Term 1 - CHM 1321A Sample...

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1 CHM 1321A Sample Mid-Term 1 1) Give brief explanations for the following. Use structures when possible. a) bonding orbital ( 3 points ) - in phase mixing of atomic orbitals - electron density between atoms - lower energy + b) antibonding orbital ( 3 points ) - out of phase mixing of atomic orbitals - node between atoms - higher energy + 2) Draw the following as Lewis and line structures: ( 12 points ) a) CH 3 CH 2 CHCHCH 2 COCH 3 b) CH 3 CH 2 CH(CH 2 CH 3 )CH 2 OH c) NCCH 2 CH(OCH 3 )CH(CH 3 )CH 2 CH 2 OH O OH OH N O C H H H C H H C H C H C H H C O C H H H C H H H C H H C H C H OH C H HH C H C NC H H C H C C CC O H C H H H H H H H H 22 2 2 2 2
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2 3) For the following compound: C l CCC l a) What is the hybridization of the carbon and chlorine atoms? ( 2 points ) C : sp 1 Cl : sp 3 1 b) Show the structure of the molecule using the LCAO method. ( 10 points ) C Cl C Cl sp sp 3 p σ π σ σ 1 1 1 1 2 1 1 1 1 linear electrons sp 3 p sp p p c) Label the orbitals used and the bonds formed in part b. ( 6 points ) d) What is the geometry of the carbon and chlorine atoms? (
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This note was uploaded on 01/16/2011 for the course CHM 1320 taught by Professor Ogilvie during the Fall '08 term at University of Ottawa.

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Organic Chemistry - Sample Mid-Term 1 - CHM 1321A Sample...

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