CHEM 3351 Midterm: chem_3351_first_hour_exam_fall_2016
31 Jan 2019
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Cu honor code pledge: on my honor, as a university of. Colorado at boulder student, i have neither given nor received unauthorized assistance. The use of notes, calculators, scratch paper, or cell phones will not be allowed during the exam. You may use models brought in a clear ziploc bag. Please put all your answers on the test in the appropriate place. Use the backs of the pages for scratch (there are two additional blank scratch sheets after the last page of the exam). Please legibly print your name on each page of the exam. 1 (20 pts) a) for 2 methylbutane (structure shown at right), sighting down the c2-c3 bond, define the eclipsed conformation shown in the newman projection on the energy diagram below as having 0 dihedral angle. Draw newman projections of the three staggered conformations of 2-methylbutane, sighting down the c2-c3 bond, in the boxes. Please rotate the back carbon clockwise moving from 0 to 60 ,
