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Midterm Exam Answer key F2009

Midterm Exam Answer key F2009 - Stoltz Ch 41c Midterm 1...

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Stoltz Ch 41c Midterm 1 Chem 41c Midterm Exam Stoltz, Fall 2009, October 26, 2009 The exam begins when you turn to page 2. You have 55 minutes to complete the exam. This is a closed note and closed book exam with no collaboration. You may use the periodic table at the side of the room or the one on the last page of this packet. You may also use your model kit. You may not use any other materials. The exam has a total of 60 points. Good luck. There are 7 pages in this exam packet. Name: _________________________________________
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Stoltz Ch 41c Midterm 2
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Stoltz Ch 41c Midterm 3 1. Cycloaranosene is a natural product isolated from Sordaria araneosa . A) Provide the hybridization for each carbon, B) label all of the methyl groups, and C) denote how many units of unsaturation there are in Cycloaranosene. (5 points) Cycloaranosene H H H 3 C H 3 C CH 3 CH 3 H H H 3 C H 3 C CH 3 CH 3 methyl groups methyl groups = sp 2 all other carbons are sp 3 5 units of unsaturation (3 rings and 2 olefins) 2. Draw a Newman projection for the hypothetical compound “methyl- Cycloaranosene” looking down
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