Which of the following aqueous solutions is(are) considered basic ?
I. [OH^-] = 6.2×10^{- 8}
II. [H₃O⁺] = 3.8×10^{- 12}
III. pOH = 2.5

Question

Which of the following aqueous solutions is(are) considered basic ? I. [OH^-] = 6.2×10^{- 8} II. [H₃O⁺] = 3.8×10^{- 12} III. pOH = 2.5

Quizplus · Accepted Answer

Option I has a pH value of 7.2 (using the formula pH = 14 - pOH), which is neutral. Option II has a pH value of 10.2, which is basic. Option III has a pOH value of 11.5, which corresponds to a pH of 2.5 (using the formula pH = 14 - pOH), which is acidic. Therefore, only Option II and Option III are basic aqueous solutions. The answer is D.

Which of the Following Aqueous Solutions Is(are) Considered Basic