The molar mass of sodium acetate, which is represented by the chemical formula C2H3NaO2, is 82.03 grams per mole. The molar mass is calculated by summing the molar mass of each atom of carbon, hydrogen, sodium and oxygen in a sodium acetate molecule.
Since each carbon atom has an atomic mass of about 12.0107 grams per mole, the total weight of carbon in sodium acetate is 24.0214. Each of the three atoms of hydrogen in the compound has an atomic mass of about 1.0079 grams per mole, for a total of 3.0238 grams per mole. Sodium contributes 22.9897 grams per mole and the two atoms of oxygen contribute 31.9988 grams per mole.