A weak acid HA has a pH `=4` . This can be confirmed as

A 0.015 M solution of a weak acid has a pH of 3.52 . What is the value of the K_a for this acid?

The pK_(a) of a weak acid (HA) is 4.5 . The pOH of an aqueous buffered solution of HA in which 50% of the acid is ionized is:

The pK_(a) of a weak acid, HA , is 4.80 . The pK_(b) of a weak base, BOH , is 4.78 . The pH of an aqueous solution of the corresponding salt, BA , will be:

The pK_(a) of a weak acid, HA , is 4.80 . The pK_(b) of a weak base, BOH , is 4.78 . The pH of an aqueous solution of the corresponding salt, BA , will be:

A weak acid has a strong conjugate base and a strong acid has a weak conjugate base.