What is the pH of a cobalt (II) hydroxide, Co(OH)2, saturated solution? For Co(OH)2, Ksp = 1.3 x 10^-15. Make the assumption that the metal cation does not affect pH. Hint: Assume the only hydroxide in solution is from the Co(OH)2.
pH = 9.82
pH = 7.66
pH = 9.14
pH = 10.30
pH = 7.28