What is the relationship between Ksp and the product of ion concentrations in terms of determining whether a solution if those ions is saturated?
The relationship is that the product of the ion concentrations must equal the Ksp value for the solution to be saturated. If the product exceeds the Ksp value, then a precipitation reaction will occur until equilibrium is reached. Conversely, if the product is less than the Ksp value, the solution is not saturated and more solute can dissolve.