What is the equilibrium constant, Ksp, of the generic salt AB(s)?

Question

At 25 degrees C, an aqueous solution has an equilibrium concentration of 0.00295 M for a generic cation, A⁺ (aq), and 0.00295 M for a generic anion, B^- (aq). What is the equilibrium constant, K_sp, of the generic salt AB(s)?

K_sp= ?

Answer 1

K_sp = [A⁺ (aq)].[B^-(aq)] = 0.00295 M X 0.00295 M = 8.70 X 10^-6 M²