Altering concentration

[406003397]

In the context of acid-base equilibrium, how does Le Chatelier's Principle explain the shift in equilibrium when the concentration of an acid or base is altered? For example, if we add more HCl to a solution in equilibrium with its conjugate base, Cl-, how does the principle predict the direction of the shift

[phiryn]

If you add concentration to reactants, its a forward shift because it wants to go to product side to reach equilibrium. Vice versa for adding to products

[Isabelle Huerta 2I]

Le Chatelier's Principle is used to predict when the concentration of an acid or a base has been altered, and what direction equilibrium will shift to counteract it. So if more HCl is added to a solution with Cl- as its conjugate base, then Le Chatelier's will suggest the equilibrium shifts to the right. This means it will favor Cl- ions and maintain equilibrium.

[405993422]

The reaction will proceed to the side with "less." Less meaning the side opposite of where more concentration was added.