Solid calcium hydroxide is dissolved in water until the pH of the solution is 10.94. What is the hydroxide ion concentration [OH^-] of the solution? A) 3.06 M B) 1.1 *10^-¹¹ M C) 1.0 *10^-¹⁴ M D) 8.7 *10^-⁴ M E) none of these

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Quizplus · Accepted Answer

The pH of the solution is 10.94, so the pOH is 14 - 10.94 = 3.06. The hydroxide ion concentration [OH⁻] is calculated as 10^(-pOH) = 10^(-3.06) ≈ 8.7 × 10^(-4) M.

Solid Calcium Hydroxide Is Dissolved in Water Until the PH