CHEM-2221L Study Guide - Final Guide: Meso Compound, Boiling Point, Azeotrope
4 Jul 2017
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Distillation layout: separates things with different boiling points. The condenser cools that vapor and the ice bath collects the condensed liquid. Boiling chips: allow reactions to boil without overflowing. In this case, cyclohexane boiled off first and then toluene. Wider makes no difference but longer make a difference. Putting things in it allows more space for the liquid to condense and recondense on. Have the same boiling points and compositions throughout all of distillation. Index of refraction: determines mole fraction in the same way that partial pressure does (see. Slower distillations happen better because higher temperatures will cause them to mix. Chiral compounds have a few things: they can have not superimposable mirror images. Two chirality centers can be a meso compound but again not necessarily. Cyclohexane will have a mix between equatorial and axial off shooting groups. Equatorial is more common and more stable because it will avoid 1-3 diaxial interactions.
