Which of the following Solubility Product expressions below belongs to the following equilibrium reaction.
Fe(OH)3(s) ←→Fe3+(aq) + 3OH-(aq)
A) Ksp = [Fe3+] x 3 x [OH-]
B) Ksp =[Fe3+] x [OH−]3[Fe(OH)3]
C) Ksp = [Fe3+] x [OH-]
D) Ksp = [Fe3+] x [OH-]3
Answer D