A solution contains equimolar concentration of a weak acid HA and its conjugate base A^(-) , p K_(b) of A^(-) is 9 . The pH of the solution is

A solution contains equimolar concentration of a weak acid HA and its

1.	A solution contains equimolar concentration of a weak acid HA and its conjugate base A^(-) , p K_(b) of A^(-) is 9 . The pH of the solution is
Answer» 9 5 7 `5.301` ANSWER :B