Chemical and Ionic Equilibrium 2 Question 29

29. A certain weak acid has a dissociation constant of 1.0×104. The equilibrium constant for its reaction with a strong base is

(1984,1M)

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Solution:

  1. The reaction of HA with strong base is

HA+OHH2O+A

K=[A][HA][OH]×[H+][H+]=KaKw=1041014=1010