In a solution where [H3O+] (hydronium ion concentration) is equal to [OH-] (hydroxide ion concentration), the solution is considered neutral. This balance of hydrogen and hydroxide ions results in a pH of 7, indicating a neutral solution.
For example, pure water at room temperature is a neutral solution where [H3O+] is equal to [OH-]. The autoprotolysis of water occurs, leading to the formation of equal amounts of hydronium and hydroxide ions.
Neutral solutions are crucial for various chemical reactions and biological processes to occur efficiently. They provide a stable environment where many substances can dissolve and interact without significant changes in pH.
