Please can someone help me with this question
Q10.Use the information below to answer this question.
A saturated solution of magnesium hydroxide, Mg(OH)2, contains 0.1166 g of Mg(OH)2 in 10.00dm3
of solution. In this solution the magnesium hydroxide is fully dissociated into ions.
The equilibrium constant expression for the dissolving of magnesium hydroxide is
K = [Mg2+] [OH−]2 . In a saturated solution of Mg(OH)2 at a different temperature, the concentration
of hydroxide ions is 1.0 × 10-3 moldm-3
Which one of the following has the correct value and units for K under these conditions?
A 1.0 × 10-6
mol2 dm−6
B 5.0 × 10-7 mol2 dm−6
C 1.0 × 10-9
mol3 dm−9
D 5.0 × 1010 mol3 dm−9
sry abt bad format it wont let me format it correctly