Consider the following solubility equilibrium: LaF3 (s) ? La3+ (aq) + 3 F? (aq) where: [La3+]eq = 9.2 x 10?6 M [F?]eq = 2.8 x 10?5 M What is the value of Ksp for this equilibrium? 2.6 x 10?10 2.0 x 10?19 5.9 x 10?19 The equilibrium concentration of LaF3 is needed.