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The given information below provides percent ionization values to indicate the extent that 0.1M solutions of certain weak acids ionize in water according to the generic equation, HA + H2O <--> H3O+ + A-. How are percent ionization values similar to equilibrium constant values? Explain your reasoning and identify which weak acid would have the smallest equilibrium constant.
Weak Acid:
HNO2
HC102
HCN
Percent Ionization:
6.2%
28.2%
0.007%
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