CHEM 203: Solubility

For a saturated solution there is ______________ between the ionic solid and the ions dissolved in solution

For a saturated solution there is ______________ between the ionic solid and the ions dissolved in solution

an equilibrium

What do small Ksp values mean compared to big Ksp values?

• small Ksp = equilibrium favours the reactants (not very soluble)

• big Ksp = equilibrium favours the products (very soluble)

What factors affect solubility?

• pH

• presence of common ions

If Q<Ksp, the solution is __________.

unsaturated

If Q=Ksp, the solution is __________.

saturated

What happens if Q>Ksp?

precipitation will occur