How is the concentration of hydronium ions (H3O+) affected when a solution of an acid is diluted?

How is the concentration of hydronium ions (H3O+) affected when a solu

1.	How is the concentration of hydronium ions (H3O+) affected when a solution of an acid is diluted?
Answer» The concentration of hydronium ions decreases when an acid is diluted because on adding water the H+ ions of the acid and hydroxyl ions of water react to form water molecules and the concentration of hydronium ions decreases.