A solution with a hydrogen ion concentration of 3.25 × 10-2 M is ________ and has a hydroxide concentration of ________.Group of answer choicesacidic, 3.08 × 10-13 Macidic, 3.08 × 10-12 Mbasic, 3.08 × 10-12 Mbasic, 3.08 × 10-13 M
Question
A solution with a hydrogen ion concentration of 3.25 × 10-2 M is ________ and has a hydroxide concentration of ________.Group of answer choicesacidic, 3.08 × 10-13 Macidic, 3.08 × 10-12 Mbasic, 3.08 × 10-12 Mbasic, 3.08 × 10-13 M
Solution
The solution is acidic because the hydrogen ion concentration is greater than 1.0 x 10^-7 M, which is the hydrogen ion concentration of a neutral solution at 25 degrees Celsius.
The hydroxide ion concentration can be calculated using the ion product of water, Kw = [H+][OH-] = 1.0 x 10^-14 at 25 degrees Celsius.
So, [OH-] = Kw / [H+] = 1.0 x 10^-14 / 3.25 x 10^-2 = 3.08 x 10^-13 M.
Therefore, the solution is acidic and has a hydroxide concentration of 3.08 x 10^-13 M.
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