If a drop of oleic acid is added to a dish of water, the oleic acid will spread out and form a layer that is one molecule thick on top of the water.
(a) Draw the Lewis structure for oleic acid.
(b) Label the region of the oleic acid molecule that is polar and the region that is nonpolar.
(c) In the layer of oleic acid that forms, which part of the oleic acid molecule points down into the water and which part points out of the water?