"The formula of sodium acetate trihydrate"

or the formula of sodium acetate trihydrate. Sodium acetate trihydrate is a crystalline compound formed by combining sodium acetate with three-thirds water. The formula can be shown as follows: $CH_3COONa\ cdot3H_2O $. Among them, $CH_3COO ^ - $is the acetate ion, $Na ^ + $is the sodium ion, and the two constitute sodium acetate; and "$\ cdot3H_2O $" represents the trihydrate state, that is, the crystal water containing three-thirds. Only then can we know the formula of sodium acetate trihydrate. This formula is indispensable in chemical research, analysis and related experiments to clarify its composition and structure.