pH is based off the concentration of OH-.
Work Step by Step
Subtract number of moles H3O+ from moles OH- then divide by total volume to find OH- concentration. Then pOH and pH can be easily found by their definitions.
You can help us out by revising, improving and updating this answer.Update this answer
After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.