Weak acid is an acid that incompletely dissociated in aqueous solution.
An acid that does not ionize completely under the conditions of interest. Examples include acetic acid, carbonic acid, and hypochlorous acid. See strong acid.
an acid that partially disassociates in water
an acid which is only slightly ionised and so forms an equilibrium mixture
Substances capable of donating hydrogen but do not completely ionize in solution.
an acid that does not ionize completely in water. For example, hydrogen flouride, HF, is a weak acid. The equation for its ionization is HF(aq) + H2O(l) = H3O+(aq) + F-(aq).
An acid that is not fully associated in aqueous solutions.
an acid that dissociates only to a slight extent in aqueous solution.
Compare with strong acid. An acid that only partially dissociates into hydrogen ions and anions in solution. Weak acids are weak electrolytes. Recognize weak acids by learning the six common strong acids; any acid that doesn't appear on the list of strong acids is usually a weak acid.
A weak acid is an acid that does not fully ionize in solution; that is, if the acid was represented by the general formula HA, then in aqueous solution a significant amount of undissociated HA still remains.
