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Solving Acid-Base Equilibrium Problems

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Updated:  
2016-03-26 17:38:18
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From The Book:  
Chemistry All-in-One For Dummies (+ Chapter Quizzes Online)
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The acid and base equilibrium constant expressions describe the relationship between the amounts of reactants and products in aqueous acid-base systems. For the following general weak-acid equilibrium:

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the equilibrium constant expression is:

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For a general weak-base equilibrium:

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the equilibrium constant expression is:

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The concentration of water (or any pure liquid or solvent or solid) does appear in the equilibrium constant expression. K is the equilibrium constant, the subscript b indicates that this is an equilibrium constant expression for a weak base, and the brackets indicate molar concentrations.

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About the book author:

John T. Moore, EdD, is a chemistry professor at Stephen F. Austin State University. He’s the author of many chemistry titles, including all editions of Chemistry For Dummies.