Common ion effect: Learn how the common

Learn how the common ion effect shifts the equilibrium of chemical reactions when an ion already present in the system is added. See how it affects the pH of weak acids and bases and the solubility of salts. The common ion effect states that the ionisation of a weak electrolyte is suppressed in presence of a strong electrolyte containing an ion common to the weak electrolyte. This page discusses lithium carbonate's role in lithium batteries, produced through a reaction with carbon dioxide. It explains the common ion effect , where adding a common ion decreases a compound's …