"Potassium Acetate" is a salt of potassium ion ($K ^ + $) and acetate ion ($CH_3COO ^ - $). Acetate ion can be combined with hydrogen ion ($H ^ + $) in water. This is the hydrolysis of acetate ion. The hydrolysis formula is: $CH_3COO ^ - + H_2O\ rightleftharpoons CH_3COOH + OH ^ - $.

From the perspective, the concentration of hydroxide ions ($OH ^ - $) in the solution gradually increases, making the solution alkaline. Therefore, "Potassium Acetate" is not an acid but a base.

It is probably the nature of the object. Only by studying its composition and changes in detail can we obtain its true meaning, and do not be confused by appearances.