Find the chemical formula of aluminum acetate

Now we want to obtain the chemical formula of aluminum acetate. Acetate, its ion symbol is $CH_ {3} COO ^ {-} $, and the aluminum ion symbol is $Al ^ {3 + }$。

. The total number of anion and cation charges must be equal. Let the chemical formula of aluminum acetate be $Al_ {x} (CH_ {3} COO) _ {y} $, then there is $3x = y $.

To make $x $and $y $the simplest integer ratio, take $x = 1 $and $y = 3 $, so the chemical formula of aluminum acetate is $Al (CH_ {3} COO) _ {3} $.