Practice question
Question
A weak base BOH ( Kb = 2.5 × 10⁻⁵ ) has a 0.1 M solution with α = 0.005 . What is the pH?
Explanation
[OH-] = 0.1 × 0.005 = 5.0 × 10⁻⁴ , pOH = 3.3 , pH = 14 - 3.3 = 10.7 .
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