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CH223 Exam 2 practice 11

CH223 Exam 2 practice 11 - CH223 Exam 2 practice 11...

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CH223 Exam 2 practice 11 (Exam practice) SHAW ROBERT H CH 223, section 001, Fall 2008 Instructor: Kay Sandberg Web Assign Current Score: 0 out of 15 Due: Monday, November 10, 2008 07:00 AM EST Description This assignment is for practice only. The grade will NOT be used in any calculation therefore you do not have to do this assignment if you do not want to do it. The key and solution will be delivered after your first submission. Instructions Be aware that for some of the multiple choice questions you only get 2 submissions - choose wisely! The due date for this assignment is past. Your work can be viewed below, but no changes can be made. Request Extension 1. --/1.25 points Rank the following compounds in order of increasing rate of hydration (1 = slowest, 5 = fastest). 3-hexanone (No Response) 1 2,2-difluorobutanal (No Response) 5 2,2-dichlorobutanal (No Response) 4 4-chloro-2-pentanone (No Response) 2 3-chlorobutanal (No Response) 3 Solution or Explanation The carbonyl C with the most electronegative atoms bonded close by will be the most reactive and have the fastest hydration rate. The carbonyl C with the most electron "pumps" will be the least reactive (thus the most stable). 2. --/1.75 points (a) Rank the following compounds in order of increasing K hyr (the equilibrium constant for hydration) by placing the corresponding letter in the blank beside the K hyr description. CH223 Exam 2 practice 11 http://www.webassign.net/[email protected]/student.pl?c=2008120718... 1 of 7 12/7/2008 1:45 PM
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(No Response) A smallest K hyr (No Response) B next smallest (No Response) D next largest (No Response) C largest K hyr (b) Draw the skeletal structure of the hydrate of A.
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