$pH \approx -0.8$
Work Step by Step
$pH = -log[H_3O^+]$ $pH = -log( 6.3)$ $pH = -0.7993$
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.