When ionic substances dissolve in water, they dissociate into individual ions. Solubility product constant for that process is designated as the solubility product, ksp. Solubility products are listed for sparingly soluble salts. Table 17. 4 of your text lists a number of different ksp values. Molar solubility is the number of moles that dissolve in each liter of solution to reach saturation equilibrium. There is a relationship between ksp and molar solubility, and it is important to understand this relationship. Calculate the molar solubility of agcl. (aq) ksp = [ag+][cl. Let x = moles liter of agcl that can dissolve (molar solubility). Agcl(s) ag+(aq) + cl-(aq) x dissolves x x. As long as enough solid is there to establish equilibrium, the amount of solid is irrelevant. ] = x2 = 1. 6 x 10-10 x = 1. 3 x 10-5 m. Let x = moles liter of ag2cro4 that can dissolve (molar solubility).
