AP Chemistrymediummcq1 pt
What is the pH of a 0.10 M NH₃ solution? (Kb = 1.8 × 10⁻⁵)
A.11.13
B.2.87
C.9.26
D.7.00
Explanation
Core Concept
[OH⁻] = √(1.8 × 10⁻⁵ × 0.10) = 1.34 × 10⁻³ M; pOH = 2.87; pH = 14 − 2.87 = 11.13.
Correct Answer
A11.13
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