Salts of polyvalent anions and cations are generally less soluble than salts in which both ions are monovalent or in which one ion is monovalent and its opposite ion is polyvalent. The most ...
Most organic drugs contain one acid group, usually a carboxylic acid, -COOH, or one basic primary, secondary, or tertiary amino group, NC 1-3, [3,22,27,28,29] that determines the acid-base ...