An ionic compound AB3 has a molar solubility of C. What is the expression of Ksp in C? Ksp = 3C4 Ksp = 27C4 Ksp = 18C4 Ksp = C4/3 Two of the above 9. The molar solubility of a compound AX2 is 2.5 x 10-3 M. Calculate the value of Ksp for AX2. 1.5 x 10-3 6.3 x 10-8 1.4 x 10-8 3.4 x 10-9 none of these