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Topic: Figuring out Equilibrium Constants  (Read 1606 times)

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Offline frivera360

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Figuring out Equilibrium Constants
« on: April 16, 2015, 12:56:03 AM »
Hey everyone I am having a lot of trouble when it comes to equilibrium. Anyway I need help figuring out how to find the equilibrium constants given Kb.

NH3+ H3O+  ::equil:: NH4+ + H2O

NH3 Kb: 1.8X10^-5

The answer is 1.8x10^9 but I do not know how to go about solving this. Any help would be greatly appreciated.
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Offline Borek

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Re: Figuring out Equilibrium Constants
« Reply #1 on: April 16, 2015, 02:41:53 AM »
Write expressions for both Kb and the given reaction. Can you think of a math manipulation that will yield one from the other? Perhaps using some other equilibrium present in the solution?
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