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Practice question

MCQ

Question

A weak base BOH ( Kb = 5.0 × 10⁻⁶ ) has a 0.1 M solution with α = 0.00707 . What is the pH?

Options

Choose one · Correct answer highlighted

Explanation

[OH-] = 0.1 × 0.00707 = 7.07 × 10⁻⁴ , pOH = 3.15 , pH = 14 - 3.15 = 10.85 .

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