Question AB(s) A+(aq)    +    B-(aq)

Equilibrium concentration (M)                                       0.00133 M        0.00133 M

Equilibrium constant,

Ksp = [A+][B+]

= (0.00133)(0.00133)

= 1.77 x 10-6

Hence, the equilibrium constant = 1.77 x 10-6

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