Question

calculate ph of 005molar of naoh

Answer 1

OH- conc. of NaOH is 0.5 , from this you can calculate pOH. Now you apply pOH+pH =14 (At 25 degree centigrade) to calculate pH of 0.5 M NaOH. So, pOH=-log[OH-] =- log(0.5) =0.3010 Hence, pH=14 - pH =13.69 .