On the Analysis of Potassium Acetate as a Strong Base or Weak Base
Taste the chemical thing, there is potassium acetate, and there are different opinions on the strength and weakness of its properties in the base. Today, try to analyze it.
The strength of the husband base depends on the degree of ionization in aqueous solution. Strong bases are completely ionized in water and produce a large number of hydroxide ions; weak bases are only partially ionized.
Potassium acetate, which is soluble in water, will undergo hydrolysis of acetate ions. The combination of acetate ions and hydrogen ions ionized by water increases the concentration of hydroxide ions in the solution, which is due to hydrolysis. However, the degree of hydrolysis is limited, and hydroxide ions are not completely ionized like strong bases.
And looking at many experimental phenomena, the related acid-base reaction experiment with potassium acetate solution shows that the alkaline strength is not as severe as the typical strong base. From the reaction rate, the dosage ratio when neutralizing with acid, etc., the difference between it and the strong base can be detected.
From this perspective, potassium acetate is not a strong base, but a weak base. It is partially hydrolyzed in an aqueous solution, showing a certain alkalinity, but compared with the strong base, the degree of ionization and alkaline strength are inferior. This is judged by comprehensive theory and practice, and can be known to the academic community.