The formula of ammonium acetate
Now I want to discuss the formula of ammonium acetate. Ammonium is ammonium ion ($NH_ {4 }^{+}$）, and acetate is derived from acetic acid ($CH_ {3} COOH $), which ionizes acetate ions ($CH_ {3} COO ^{-}$） 。

When ammonium ions combine with acetate ions, the resulting compound is ammonium acetate. Its chemical formula is $CH_ {3} COONH_ {4} $. This compound has a wide range of uses in the chemical field.

The formation of ammonium acetate is based on the electrostatic attractive force between ions. Ammonium ions are positively charged, acetate ions are negatively charged, and the two attract each other and combine by ionic bonds.

The method of preparing ammonium acetate is often mixed with acetic acid and ammonia water. The chemical reaction formula is: $CH_ {3} COOH + NH_ {3}\ cdot H_ {2} O\ longrightarrow CH_ {3} COONH_ {4} + H_ {2} O $. This reaction is mild, easy to control, and has a high yield.

Ammonium acetate is used in many industries. In chemical production, it can be used as an intermediate to synthesize other organic compounds. In analytical chemistry, it can be used for the precipitation or separation of certain metal ions. Due to its specific chemical properties, it can form insoluble salts with some metal ions, so as to achieve the purpose of separation and identification.

The formula and properties of ammonium acetate can be seen that its importance in various fields of chemistry cannot be ignored.