The  Ksp  of  Mg(OH)₂  is 1 10 x .  0.01  Mg(OH)₂    will precipitate at the limited pH

Given, Ksp of Mg(OH)₂ = 12 1 10 x Concentration of Mg(OH)₂ = 0.0038 2 2 Mg(OH) Mg 2OH 2 2 sp K Mg OH or 2 12 1 10 0.01 OH x x 2 4 SO IONIC EQUILIBRIUM 49 or 2 10 OH 1 10 x or 5 OH 1 10 x Again, from 14 H OH 10 or 5 14 H 1 10 10 x or 14 9 5 10 H 10 10 9 pH log H pH log10 9  Mg(OH)₂ will precipitate at limited place.