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If You Know Kb for Ammonia, NH3, You Can Calculate

Question 96

Multiple Choice

If you know Kb for ammonia, NH3, you can calculate the equilibrium constant Ka for the reaction
NH4+ If you know K<sub>b</sub> for ammonia, NH<sub>3</sub>, you can calculate the equilibrium constant K<sub>a</sub> for the reaction NH<sub>4</sub><sup>+</sup>  NH<sub>3</sub> + H<sup>+</sup><sup> </sup>by which of the following equations? A)  K<sub>a</sub> = K<sub>w</sub>K<sub>b</sub> B)  K<sub>a</sub> = 1/K<sub>b</sub> C)  K<sub>a</sub> = K<sub>b</sub>/K<sub>w</sub> D)  K<sub>a</sub> = K<sub>w</sub>/K<sub>b</sub>NH3 + H+
by which of the following equations?


A) Ka = KwKb
B) Ka = 1/Kb
C) Ka = Kb/Kw
D) Ka = Kw/Kb

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