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The acid dissociation constant, K a , for the weak acid, lactic acid  is ...

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The acid dissociation constant, Ka, for the weak acid, lactic acid is Ka = 1.38 x 10-4. The conjugate base is lactate.

Calculate the final pH when 0.16 M lactic acid is dissolved in water. (Note, you can assume "x" is not significant with respect to the acid concentration where x is the change in concentration upon equilibration.)

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