"Ask the chemical formula of potassium acetate"

or ask what the chemical formula of potassium acetate is. The chemical formula of the husband, so the composition of the substance is clear. Potassium acetate is formed by potassium ions and acetate ions. The formula of acetate ion is $CH_3COO ^ - $, and the formula of potassium ion is $K ^ + $. The anion and cation phase combine to form potassium acetate. According to the principle of charge balance, the formula of the combination of the two is $CH_3COOK $. Therefore, the chemical formula of potassium acetate is $CH_3COOK $.