The molar mass of SO3 (sulfur trioxide) is 80.06 g/mol. This is calculated by adding the atomic masses of one sulfur atom (32.06 g/mol) and three oxygen atoms (16.00 g/mol each). The formula for calculating molar mass is: Molar Mass = (Atomic Mass of Sulfur) + 3 × (Atomic Mass of Oxygen). So, Molar Mass = 32.06 + 3 × 16.00 = 80.06 g/mol. This value is essential for various chemical calculations, including stoichiometry and concentration determinations.
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