Jawabanmu

2014-05-21T12:22:06+07:00
Mg(OH)2 --> mg2+ + 2 oh-

L mg oh 2 = akar 1 ksp mg(OH)2/ oh-. 2^2
= 1.8 × 10^-11 / 0.05×4
= 9 × 10^-11