whalen1 - Return my exam in class _ Return my exam in Clark...

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Hour Exam I (a), Chemistry 301, Spring 2007, Page 1 of 5 pages Return my exam in class ____ Return my exam in Clark 278____ NAME _______________________________ HOUR EXAM I 1. (10, 1 each) Below is shown the structure of an organic compound having a large number of different kinds of bonds in it. Some of the bonds have been indicated with an arrow. Beneath the structure is a list of different types of bonds described in terms of their component orbitals. Each bond listed is designated by a letter. In the space provided on each arrow, write the letter that best describes that bond. When two letters are required, they may be written in either order. An example has been filled in. A letter may be used more than once. A. sp 3 -s, σ B. sp 3 -p, σ C. sp 3 -sp, σ D. sp 3 -sp 2 , σ E. sp 3 -sp 3 , σ F. sp 2 -s, σ G. sp 2 -p, σ H. sp 2 -sp, σ J. sp 2 -sp 2 , σ K. p-p, σ L. sp-s, σ M. sp-p, σ N. sp-sp, σ P. s-s, σ Q. s-p, σ R. p-p, π S. 2 p-p, π T. sp-p, π V. sp 2 -p, π W. sp 3 -p, π 2. (14, 7 each) In the space provided, write the correct IUPAC name for the compound having each of the following structures. Be sure you use correct punctuation and spelling in your names . a. b.
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Hour Exam I (a), Chemistry 301, Spring 2007, Page 2 of 5 pages 3. (7) Below is shown a contributor to the hybrid structure of imidazole, which is found in many antifungal drugs and the amino acid histidine. a. (6, 2 each) In the space provided beside each of three of the atoms, write the formal charge on that atom . A periodic table is provided at the end of the test. SHOW YOUR WORK. b. (1) The formal charges on the remaining atoms are all zeros . Based on the formal charges you determined for the other three atoms , tell whether imidazole is neutral overall or is an ion, and fill in its net charge if you think it is an ion. CHOOSE ONE. _____ Imidazole is neutral. _____ Imidazole is an ion having a net charge of _____. 4. (7) The contributor to the imidazole hybrid is repeated below. All valence electrons are included in the structure. a. (4) In the space provided to the right of the given structure, draw the structure of another contributor to the resonance hybrid for imidazole. Be sure to include any unshared valence electrons in the structure you draw as well as the formal charge on any atom that has one.
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This note was uploaded on 03/21/2010 for the course CHEM 301 taught by Professor Morrow during the Spring '08 term at New Mexico.

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whalen1 - Return my exam in class _ Return my exam in Clark...

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