Villanova CHM 2212 - Recitation 1 (2 pages)

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Recitation 1



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Recitation 1

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School:
Villanova University
Course:
Chm 2212 - Organic Chemistry II

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CHM 2211 Organic Chemistry I August 29 2002 Recitation 1 Dr Bausch Practice quiz Problems involving Lewis structures 1 a Draw a complete Lewis structure for molecular nitrogen N2 b Also draw an acceptable Kekul form for N2 2 a Draw the best Lewis structure for NO2 known as the nitronium ion The N is the central atom b Draw a resonance structure for NO2 Why is this structure not as good as the one you drew in part a c Estimate the O N O bond angle in degrees 1 3 Using Table 1 5 of your text if needed to help in deciphering the following concensed structure draw the best Lewis structure for methyl butyrate a compound partially responsible for the nice smell of apples C H3 C H2 C H2 C O2 C H3 4 a Draw the best Lewis structure for methyl isocyanate CH3 NCO The atom atom connectivity is shown below H H C N C O H b Using VSEPR estimate the C N C bond angle in degrees 2



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