In the case of barium hydroxide and acetic acid, a scholar wanted to study the reaction between barium hydroxide and acetic acid. Then barium hydroxide was placed in a container and acetic acid was slowly dripped. Seeing the contact between the two, there was no significant change at first, but by chemical reasoning, the two have quietly merged.

Barium hydroxide is a strong base, but in water it is separated into barium ions and hydroxide ions. In the case of acetic acid, weak acids are also separated in the middle of water, and there are hydrogen ions and acetate ions. When the two meet, hydrogen ions and hydroxide ions quickly combine to form water, causing the ionization equilibrium of acetic acid to shift to the right, and the ionization of acetic acid continues, and the reaction gradually deepens.

Not long after, there is a slight turbidity in the considerable solution. The barium ion is combined with the acetate ion to form barium acetate. However, although the barium acetate is soluble, at this time or due to concentration, there is a slight precipitation phenomenon, causing the solution to appear slightly turbid. Scholars observe its changes in detail, and measure its temperature and conductivity with precise instruments. When seeing the reaction, there is a slight heat out, which is due to the heat generation of the neutralization reaction. And the conductivity also changes. At first, due to weak ionization of acetic acid, the conductivity of the solution is slightly weak. With the reaction, the number of ions increases and the conductivity gradually rises.

After this investigation, scholars have learned more and more about the reaction between barium hydroxide and acetic acid, knowing the movement of microscopic particles and the change of energy, which has also added a demonstration to the wonders of chemistry and increased people's understanding of chemical changes.