plugin-231_exam1_S08

plugin-231_exam1_S08 - Version 1 Chemistry 231, Midterm I...

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Version 1 Chemistry 231, Midterm I Instructor: Bergdahl Spring 2008 Name:________________________________________________ My laboratory instructor (TA) for Spring 2008 is: Gloria Hincapie Stephanie Lapera Leslie Alexander Hai Tran Don't have lab this semester Before you start the exam, please make sure that you have 14 different problems. (A periodic table is attached) Please, be prepared to show your ID upon request!!
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Version 1 Good Luck!! My student ID number is:______-____-_______ For graders only: Problem: # 1 _______/ 8p # 2 _______/ 4p # 3 _______/ 5p # 4 _______/ 8p # 5 _______/ 6p # 6 _______/ 10p # 7 _______/ 9p # 8 _______/ 5p # 9 _______/ 6p #10 _______/ 6p #11 _______/ 8p #12 _______/ 10p #13 _______/ 5p #14 _______/ 10p Total: __________/100
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Version 1 Problem 1. Write a Lewis structure for each of the following compounds. (8p) b) NO 3 a) H 2 CO 3 c) HN 3 (arranged HNNN) d) The anion in b) is a very stable species. Explain this stability by illustrating possible resonance structures for this anion. Problem 2. Draw the direction of the dipole moment for the following atom-atom bonds. (4p) CH Br F OH OC l CO FL i CS HN Problem 3. Label the primary (1°) and quaternary (4°) carbon atoms in the following molecules below.(4p) CH 3 H 3 C H 3 C a) b) c) Are there any sp2-s bonds in structures in a) and b)? If so, how many can be seen? (1p)
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This note was uploaded on 03/08/2010 for the course CHEM 28872 taught by Professor Bergdahl during the Spring '08 term at San Diego State.

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plugin-231_exam1_S08 - Version 1 Chemistry 231, Midterm I...

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