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A salt M2X3, calculate the mean activity coefficient of M3+ and X2- ions in a solution that has 0.1 M KNO3 and 0.1 M

A salt M2X3, calculate the mean activity coefficient of M3+ and X2- ions in a solution that has 0.1 M KNO3 and 0.1 M KCI, assuming DHLL to be applied, what is the solubility of M2X3 in that solution and in H20? (ksp M2X3= 5.0 x 10-16)

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