Soaps, Detergents, and Hard Water
Fatty acid molecules can align to form a barrier called a bilipid layer, shown below. In this schematic, the ionic end of the fatty acid is shown as a circle, and the nonpolar chain is shown as a squiggly line. Use this diagram far questions 66 and 67.
66. Why do nonpolar molecules have a difficult time passing through the bilipid layer? How about polar molecules?
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