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Question

What is the pH of a 0.100 M NH3 solution that has Kb = 1.8 × 10^-5? The equation for the dissociation of NH3 is NH3(aq) + H2O(l) ⇌ NH4+(aq) +OH-(aq). A) 1.87 B) 11.13 C) 12.13 D) 2.87