When solid Magnesium Chloride is dissolved, the equilibrium concentration of Mg²⁺ is found to be 0.08M. Find the value of the equilibrium constant.

Answer 1

MgCl₂ --> Mg²⁺ + 2Cl^-

[Mg²⁺] = 0.08 M

[Cl^-] = 0.08*2 = 0.16 M

K = [A]^a[B]^b = [Mg²⁺] [Cl^-] ² = (0.08M) * (0.16M)² = 2.04 * 10^-3 M³