CHEM 14C Study Guide - Final Guide: Unified Atomic Mass Unit, Prostaglandin, Hydrogen Bond
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Chemistry 14c spring 2016 final exam part b solutions page 1. Statistics: high score, average and low score will be posted on the course web site after exam grading is complete. A note about exam keys: the answers presented here may be significantly longer than expected from a student taking the exam. An exam key serves not only to reveal what was expected, but to instruct you as well. Any other contributors violate at least one resonance contributor preference rule, and are therefore less significant. O: conjugation provides stabilization to a molecule by providing electron delocalization. Or (better): a longer pi electron wavelength. Planarity is a result of conjugation, and not a cause of stability: aromaticity is an important feature of molecular structure because aromaticity causes stability (or planarity or electron delocalization or). Other answers may be possible: yes to all parts, the structure shown is d-ribose.
