The convention is quite simple and makes it easier to draw molecules, but line structures do take a little bit of getting used to. More commonly, organic and biological chemists use an abbreviated drawing convention called line structures, also known as skeletal structures or line bond structures. Determine the Lewis Structure for each of these household chemicals. When you do this, you will see the two CH must be double bonded.Ĭommon organic compounds that you likely have at home are: acetone (CH 3COCH 3) found in nail polish remover, acetic acid (CH 3COOH) found in vinegar, and isopropanol ((CH 3) 2CHOH) found in rubbing alcohol. Always double check your structure to ensure every carbon is making four bonds. The COOH represent a carboxylic acid, which means you have a C=O connected to an O-H. The (CH 2) 7 represents a repeating unit, meaning you must draw seven CH 2‘s one after another, which are bonded to a CH which is bonded to a CH, and then another seven CH 2‘s. Determine the Lewis Structure of the following condensed structure of oleic acid, a fatty acid that is found naturally in various animal and vegetable fats and oils.
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