Along with the pH scale, there is the pOH scale, which indicates the level of "basicity" in a solution. Accordingly, pOH = -log[OH^-]. What is the sum of the pH and the pOH of a solution always equal to? A)the negative of the product of the hydronium and hydroxide ions B)the negative log of , which is 14 C)The sum would equal 7, since that would be neutral for pH and pOH. D)It is not constant because it depends on the acid/base solution in question.

Question

Quizplus · Accepted Answer

The pH scale and the pOH scale are complementary; the sum of the pH and the pOH of a solution should always equal 14, which is the negative log of the product of the hydronium and hydroxide ions (10^-14). Therefore, the correct answer is (B) the negative log of 10^-14, which is 14.

Along with the PH Scale, There Is the POH Scale