Reading Assignment from Zubrick, 9^th ed.: Drying agents, chapter 10, Extraction
ID: 506337 • Letter: R
Question
Reading Assignment from Zubrick, 9^th ed.: Drying agents, chapter 10, Extraction and washing, Chapter 15; Elimination Reactions of Alkyl Halides Experiment, GSU Laboratory Manual The concentrated hydrochloric acid you will use in the first day of the laboratory exercise is not hydrochloric acid. What else is present in the concentrated hydrochloric acid solution, and what are the relative amounts of each component? This answer may be found via the internet. What piece of glassware is used to wash the alkyl halide product? What drying agent is used to dry the alkyl halide prepared in the laboratory? From the perspective of the organic chemistry laboratory what is a dry liquid In the reaction that is performed on day one of this experiment, is the alkyl halide product found in the aqueous layer or the organic layer, and is the layer you identified on top or the bottom?Explanation / Answer
Alkyl halide
1. HCl used was not 100%, but it contained water. The commercial grade HCl is mostly 36.5% HCl and rest is water.
2. The piece of glassware used is separatory funnel which is employed to wash the alkyl halide product.
3. The drying agent used to dry the product is magnesium sulfate (MgSO4) or calcium chloride (CaCl2). Both of these can absorb water present in solution.
4. A dry liquid is liquid which does not have any water present in it. The drying agent is added to the liquid to remove any water present in it and to obtain dry liquid.
5. The alkyl halide product would be water insoluble. It would dissolve preferentially in organic solvent and would be the bottom layer.
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