Question

What is the pH of a solution with a OH- concentration of 0.000810820000 molar? Calculate answer to two decimal places, do not specify units in the answer.

Answer 1

Since hydrochloric acid is a strong acid, it dissociates into single H+ ions in an aqueous solution, which eventually becomes H3O+ ions due to the presence of water (H2O), and the pH will simply be:

pH=−log(0.000810820000)

pH= 3.09