Question
The solubility of Mg(OH)2 is measured and found to be 9.25×10-3 g/L. Use this information to calculate a Ksp value for magnesium hydroxide
Answers
DrBob222
Convert 9.25E-3 g/L to mols/L. I will call that x.
....Mg(OH)2 ==> Mg^2+ + 2OH^-
I...solid........0.......0
C...solid........x.......2x
E...solid........x.......2x
Substitute the E line into Ksp expression and solve for Ksp.
....Mg(OH)2 ==> Mg^2+ + 2OH^-
I...solid........0.......0
C...solid........x.......2x
E...solid........x.......2x
Substitute the E line into Ksp expression and solve for Ksp.