Engineering Board Exam Reviewer · Chemistry · hard
What is the pH of a 0.1 M ammonia solution? (Kb = 1.8 × 10-5)
- 2.87
- 13.00
- 8.26
- 11.13
Answer
D. 11.13
Solution
[ OH-] Kb C = 1.342 × 10-3 M pOH = 2.87 pH = 14 - 2.87 = 11.13.
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