The strength of an acid or a base is determined by the
of the substance in solution. the acid dissociation
constant, is a quantitative measure of acid strength. a
strong acid has a much ka than a weak acid. the ka of
an acid is determined from measured values.
hydrochloric acid and sulfuric acid are ionized in
solution and are acids. ethanoic acid, which is only
about 1 percent ionized, is a acid. magnesium hydroxide
and calcium hydroxide are strong
weak bases react with to form the hydroxide ion
and the conjugate of the base. concentration in solution
does not affect whether an acid or a base is or weak.