What is the formula mass for sulfur dioxide?

The formula mass of a molecule (also known as formula weight) is the sum of the atomic weights of the atoms in the empirical formula of the compound.

Sulfur dioxide

Sulfur dioxide has the chemical composition of SO2 and is also commonly referred to as sulfurous acid anhydride, sulfurous anhydride or sulfur oxide. Sulfur dioxide has sulfur (S) and oxygen (O) present. One sulfur atom and two oxygen atoms make the molecule sulfur dioxide with formula SO2

Formula mass of Sulfur dioxide

The molar mass of sulfur is 32.1 g/mol

Molar mass of oxygen is 16.0 g/mol

Formula mass= [ 1 X 32.1 g / mol] [ 2 X 16 g / mol]

= 32.1 g / mol X 32 g / mol

= 64.1 g / mol


Hence, Formula mass of Sulfur dioxide = 64.1 g / mol

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