The neutralization of acetic acid and barium hydroxide
At some point, the neutralization of acetic acid and barium hydroxide is attempted. Acetic acid, a weak acid, is partially ionized in water, and its liquid is acidic. Barium hydroxide, a strong base, is fully ionized in water, producing barium ions and hydroxide ions.

Gradually inject the barium hydroxide solution into the vessel containing acetic acid. Initially, the hydrogen ions ionized by acetic acid meet the hydroxide ions ionized by barium hydroxide, and the two combine to form water. However, due to the consumption of hydrogen ions, acetic acid continues to ionize new hydrogen ions according to the principle of ionization equilibrium.

With the addition of barium hydroxide, the hydrogen ions ionized by acetic acid are gradually neutralized by hydroxide ions. Until the reaction between the two is completed according to the stoichiometric number, the acetate ion and the barium ion are present in the solution. The acetate ion will hydrolyze, making the solution slightly alkaline.

Looking at this process of harmony, the principles of chemistry are fully revealed, and the change of particles and the shift of balance all demonstrate the wonders of chemistry.