Answers to PE1

Answers to PE1 - Answers to Practice Exam 1 Question 1. The...

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Answers to Practice Exam 1 Question 1. The following questions refer to the compound propyne, shown below. C CH H 3 C propyne sp 3 sp sp a) On the structure above, identify the hybridization state of all carbon atoms. b) Draw a picture below that clearly shows the interacting orbitals of all of the C–C single bonds in propyne C C H 3 C H C–C ! -bonding in propyne ("small" lobes of the orbitals are not shown) c) Draw a picture below that clearly shows the interacting orbitals of all of the multiple bonds in propyne C C H 3 C H -bonding in the triple bond
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Question 2. The compound guanidine has the chemical formula CH 5 N 3 . a) Complete the Lewis structure of guanidine on the template below by adding all the hydrogen atoms, missing bonds and missing nonbonded electrons. Make sure to identify any non-zero formal charges on the atoms. C N N N H H H H H b) Guanidine is a very good bronstead base. Addition of H + to guanidine leads to the guanidinium polyatomic ion: CH 6 N 3 + .
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This note was uploaded on 10/06/2010 for the course ES ES271 taught by Professor Machaut during the Spring '10 term at Colby.

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Answers to PE1 - Answers to Practice Exam 1 Question 1. The...

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