Whether ammonium acetate is polar or not

, there are poles and non-poles, which are related to its molecular structure and charge distribution. Ammonium acetate, whose chemical formula is $CH_3COONH_4 $, is composed of acetate ion $CH_3COO ^ - $and ammonium ion $NH_4 ^ + $.

In acetate ion, the chemical bond between carbon atom and oxygen atom causes uneven charge distribution due to the difference in atomic electronegativity. Oxygen atom has strong electronegativity and attracts electron cloud strongly, causing the charge in acetate ion to be biased towards one end of the oxygen atom. In ammonium ion, the electronegativity of nitrogen atom is stronger than that of hydrogen atom, which also makes the charge distribution different, and the electron cloud is biased towards nitrogen atom.

When ammonium acetate forms an ionic compound, the anions and cations are connected by ionic bonds. The essence of ionic bonds is the electrostatic attractive force between anions and cations. Under the action of this attractive force, the charge distribution is significantly uneven.

From the perspective of the molecule as a whole, ammonium acetate contains ionic bonds, and each of the anions and cations has its own charge, and the charge distribution is extremely uneven, so it presents polarity. And in water, because water is a polar solvent, ammonium acetate can dissolve in water according to the principle of similar miscibility, which also confirms its polarity.

In summary, ammonium acetate is a polar substance, and its polarity is due to the existence of ionic bonds and the uneven distribution of charge within the ions.