CHEM 3351 Midterm: chem_3351_first_hour_exam_fall_2015

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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 2,4-dimethylpentane (structure shown at right), let the eclipsed conformation shown in the newman projection on the energy diagram below be defined as the 0 dihedral angle. Draw newman projections of the three staggered conformations of 2,4- dimethylpentane sighting down the c2-c3 bond, in the boxes.