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Can a molecule be both hydrophobic and hydrophilic? I think that's what soap (alkali salts of fatty acids)is all about. One end of these molecules attach to water molecules, the other end rejects water.(attaches to itself if ot â¦ her molecules of alkali salts of fatty acids are near by.)
Pyridine is often present in the hydrophobic part. Structure of this group, its size and branching have essential significance for the resultingproperties of the surfactant. The polar part (hydrophilic), which is responsible forthe molecule solubility in water and polar organic solvents, is in most cases acidic or basic. If such a group is present it forms salt with a cation or anion,respectively and becomes