Question

How does common ion effect the solubility of electrolyte?

Answer 1

Common Ion Effect on Solubility. Adding a common ion decreases solubility, as the reaction shifts toward the left to relieve the stress of the excess product. Adding a common ion to a dissociation reaction causes the equilibrium to shift left, toward the reactants, causing precipitation.

Answer 2

The solubility of electrolytes decreases due to the common ion effect.

• The common ion effect is an effect that suppresses the ionization of an electrolyte when another electrolyte is added.
• It is used in the treatment of water.
• The decreases in solubility of an ionic precipitate by the addition to the solution of a soluble compound with an ion in common with the precipitate.
• This behavior is a consequence of Le Chatelier's principle.