Question

What would be the effect on Ksp if an unsaturated solution of CaSO4 was titrated instead of a saturated solution of CaSO4. would ksp be higher, lower or the same?

would ksp be higher due to the more ions available in the solution. so you would have to use more titrant to equal the greater amount of ions present. which would equal to more moles of CaSo4 which would then eventually lead to a higher ksp value. where as a saturated solution would experience the common ion effect resulting in less ions in solution.

thank you in advance

Answer 1

Your guess is wrong. If the solution is unsaturated you will LESS Ca^2+ and LESS SO4^2-. The saturated solution will have dissolved more of each ion.