CH223 001 HW 1

CH223 001 HW 1 - CH223 001 HW 1

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CH223 001 HW 1 (Daily) SHAW ROBERT H CH 223, section 001, Fall 2008 Instructor: Kay Sandberg Web Assign Current Score: 4.5 out of 10 Due: Friday, August 22, 2008 07:00 AM EDT Description This assignment corresponds to Lecture 1 and the DE presentations which accompany it. To see submission number and score, click the "Show Details" link at the top of each question. Instructions Click here for mechanism arrow input instructions Click here for JME troubleshooting Click here for JME X window troubleshooting Frustration stoppers! 1) You will save yourself a lot of frustration if you read the instructions for mechanism arrow input. 2) Hydrogens are understood and should not be shown. The due date for this assignment is past. Your work can be viewed below, but no changes can be made. 1. 3/3 points One of necessary skills you must master to succeed in CH223 is the ability to follow electron flow arrows. Every exam has a structure with electron flow arrows for which you must be able to draw the resulting species. The one given below was on Exam 3 from a previous semester. The blue arrow is indicating that a lone pair on oxygen is being transformed into a bond between C-1 and the O. The red arrow is indicating that the sigma bonding electrons between C-1 and C-2 are moving to become sigma bonding electrons between C-2 and N. How did I know C-2 was going to end up being singly bonded to N? Remember that we cannot "over octet" carbons (the maximum # of bonds carbon forms is 4 for our consideration). C-1 would be "over octeted" when the lone pair electrons from the O made a pi bond, unless another bond left C-1. The arrows are indicating that the C-2 bonded to C-1 is leaving and
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This note was uploaded on 02/03/2009 for the course CH CH 102, 20 taught by Professor Ta,ta,sandberg during the Fall '08 term at N.C. State.

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CH223 001 HW 1 - CH223 001 HW 1

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