Worksheet_7A - Bond angle 4: _______________ Bond angle 5:...

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Dr. Ramesh Arasasingham WORKSHEET 7 I. Boron trifluoride, BF 3 , can accept a pair of electrons from another molecule to form a coordinate covalent bond, as in the following reaction with ammonia: Does the geometry (i.e., bond angles) and hybridization of the boron atom change on formation of the coordinate covalent bond? ( NOTE: To receive credit for this question, you must clearly show all your reasoning ). II. The compound whose Lewis structure is shown below is acetylsalicylic acid, better known as Aspirin. What are the approximate values of the bond angles indicated by the arrows 1-5 and the hybridization of the carbon atom W, X, Z and oxygen atom Y: Bond angle 1: _______________ Bond angle 2: _______________ Bond angle 3: _______________
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Unformatted text preview: Bond angle 4: _______________ Bond angle 5: _______________ Hybridization of carbon atom W: _______________ Hybridization of carbon atom X: _______________ Hybridization of carbon atom Z: _______________ Hybridization of oxygen atom Y: _______________ How many σ bonds are in the molecule? _______________ H N H H B F F F H N H H B F F F + C C C C C C H H H H O C O O H C O C H H H 1 2 3 4 5 X Y W Z III. Given the following structure: H-C ≡ C-CH=CH-CH 3 a) Identify the hybrid orbitals on each carbon atom. b) Determine the local geometry of each carbon atom and predict the bond angles around each carbon atom. c) Sketch a better (i.e., a more geometrically correct) representation of this molecule....
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This note was uploaded on 11/19/2010 for the course CHEMISTRY Chem 1A Di taught by Professor Rameshdarasasingham during the Spring '10 term at UC Irvine.

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Worksheet_7A - Bond angle 4: _______________ Bond angle 5:...

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