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Acid-Base Equilibria a Summary

Acid-Base Equilibria a Summary. “C” indicates the analytical concentration. For example, C A would be the molarity of an acid solution assuming no dissociation. C B and C S would be the same for a base and a salt. Acid-Base Equilibria a Summary.

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Acid-Base Equilibria a Summary

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  1. Acid-Base Equilibriaa Summary “C” indicates the analytical concentration. For example, CA would be the molarity of an acid solution assuming no dissociation. CB and CS would be the same for a base and a salt.

  2. Acid-Base Equilibriaa Summary So we might express an acid equilibrium equation as: KA = [H+][A-]/[HA] = X2/(CA-X) ~X2/CA or (base): KB = X2/CB or (acid buffer) KA = X*CS/CA

  3. Acid-Base Equilibriaa Summary Solutions of Salts: SBSA: pH = 7 SBWA: pH > 7 WBSA: pH < 7 WBWA: pH depends on the KB of the base and the KA of the acid

  4. Acid-Base Equilibriaa Summary For SBWA salts, it is possible to show: KA*KB = KW where “KB” is the equilibrium constant for the WA anion. For WBSA salts the same equations holds, but “KA” is the equilibrium constant for the WB cation.

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