Molar and molecular weight of Au2S3

• Relative molecular weight of Au2S3: 490.128138
• Molar mass of Au2S3: 490.128138 g/mol (0.49013 kg/mol)

Calculation of the relative molecular and molar mass of Au2S3

• Mr[Au2S3] = Ar[Au] * 2 + Ar[S] * 3 = 196.966569 * 2 + 32.065 * 3 = 490.128138
• Molar mass (kg/mol) = Mr[Au2S3] : 1000 = 490.128138 : 1000 = 0.49013 kg/mol

Au2S3: percent composition by element

• Gold (Au) = 393.933138 : 490.128138 * 100 = 80.373 %
• Sulfur (S) = 96.195 : 490.128138 * 100 = 19.627 %

Molar mass calculator