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# Acid-Base Equilibria

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Calculate the percent ionization of propionic acid (C2H5COOH) in solutions of each of the following concentrations:
a) 0.250 M
b) 0.0800 M
c) 0.0200 M
** Ka = 1.3 x 10 ^ -5

##### Solution Summary

Acid base equilibria are examined. The percent ionization of propionic acid is calculated.

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Calculate the percent ionization of propionic acid (C2H5COOH) in solutions of each of the following concentrations:
a) 0.250 M
b) 0.0800 M
c) 0.0200 M
** Ka = 1.3 x 10 ^ -5

a) 0.250 M
C2H5COOH ↔ H+ + C2H5COO-
Initial 0.25 --- ------
Change -x +x +x
Equilibrium 0.25-x x x

Ka = [H+][ C2H5COO-] / ...

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