On the acidity and alkalinity of potassium acetate
I have heard that many people talk about the properties of potassium acetate. Is it acid? Or alkali? This is a chemical doubt, related to the nature of matter, and must not be ignored.

Potassium acetate is a salt composed of potassium ions and acetate ions. To understand its acidity and alkalinity, it should be determined by chemistry. According to the acid-base proton theory, whoever can give protons is an acid, and whoever can accept protons is a base. Acetate ions in water can combine with hydrogen ions ionized by water to form acetic acid. In this process, acetate ions accept protons, so they are alkaline. The ionic equation is as follows: $CH_3COO ^ - + H_2O\ rightleftharpoons CH_3COOH + OH ^ - $. From this point of view, the concentration of hydroxide ions in the solution increases, and the solution is alkaline.

It is deduced from the hydrolysis constant that acetic acid is a weak acid with a limited ionization constant. When acetate ions are hydrolyzed, the hydrolysis constant is related to the ionization constant of acetic acid. According to the relevant formulas and data calculations, it can be seen that the degree of hydrolysis of acetate ions cannot be underestimated, which is also the proof that the solution is alkaline.

Furthermore, it is tested by experimental method. Take an appropriate amount of potassium acetate solution, measure it with a precise pH test paper, or measure it with pH, and get that its pH value is greater than 7. This intuitive result conclusively shows that the potassium acetate solution is alkaline.

To sum up, whether it is theoretical derivation or experimental verification, potassium acetate can be proved to be an alkaline substance. In the exploration of chemistry, everyone should use scientific methods and rigorous states to understand the true meaning of matter and solve the mystery of nature.