On the Molar Mass of Barium Acetate
To clarify the molar mass of barium acetate, it is necessary to analyze its constituent elements and atomic weight in detail. The chemical formula of barium acetate is $Ba (CH_ {3} COO) _ {2} $.

The relative atomic mass of the first-view barium element ($Ba $) is about 137.33 dollars.

Look at the carbon element ($C $) again. In the chemical formula of barium acetate, the atomic number of carbon is 4 dollars, and the relative atomic mass of carbon is about 12.01 dollars. Therefore, the mass of carbon in barium acetate is 4 dollars\ times12.01 = 48.04 $.

Hydrogen ($H $) has an atomic number of 6 dollars $, the relative atomic mass of hydrogen is about 1.01 dollars $, and the mass of hydrogen is 6 dollars\ times 1.01 = 6.06 $.

Oxygen ($O $) has an atomic number of 4 dollars $, the relative atomic mass of oxygen is about 16 dollars $, and the mass of oxygen is 4 dollars\ times 16.00 = 64.00 $.

The molar mass of barium acetate is the sum of the masses of each element, that is, 137.33 dollars + 48.04 + 6.06 + 64.00 = 255.43 $g/mol $.

It can be seen that the molar mass of barium acetate is about 255.43 dollars $g/mol $. This value is of great significance in chemical calculations, such as the quantity and mass conversion of substances, to help researchers accurately measure and operate.