1 Organic Chemistry II Exam II (150 pts) Spring 2013 ... - Courses
1 Organic Chemistry II Exam II (150 pts) Spring 2013 ... - Courses
1 Organic Chemistry II Exam II (150 pts) Spring 2013 ... - Courses
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7. Which of the following compounds absorbs the longest wavelength of UV-visible light, and why? A) (E)-‐but-‐2-‐ene B) (Z)-‐but-‐2-‐ene C) hex-‐1-‐ene D) (Z)-‐1,3-‐hexadiene E) (E)-‐1,3,5-‐hexatriene Part 2. Read the article titled “A psychophysical test of the vibration theory of olfaction,” by Keller and Vosshall, Nature Neuroscience 2004 7(4):337-‐338. Answer the following questions (15 <strong>pts</strong> each). 1. In you own words, describe how Keller and Vosshall addressed, as they say, “A third prediction of Turin’s vibration theory…”. Include a brief description of this piece of their experimental design, as well as an explanation of what you feel is the most convincing aspect of their results for this part of the study. Refer specifically to one or more parts of Figure 2 in your response. 4
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