Molar and molecular weight of C7H8O3S

• Molecular formula: C7H8O3S or CH3C6H4SO3H
• Relative molecular weight of C7H8O3S: 172.20162
• Molar mass of C7H8O3S: 172.20162 g/mol (0.1722 kg/mol)

Calculation of the relative molecular and molar mass of C7H8O3S

• Mr[C7H8O3S] = Ar[C] * 7 + Ar[H] * 8 + Ar[O] * 3 + Ar[S] = 12.0107 * 7 + 1.00794 * 8 + 15.9994 * 3 + 32.065 = 172.20162
• Molar mass (kg/mol) = Mr[C7H8O3S] : 1000 = 172.20162 : 1000 = 0.1722 kg/mol

C7H8O3S: percent composition by element

• Carbon (C) = 84.0749 : 172.20162 * 100 = 48.824 %
• Hydrogen (H) = 8.06352 : 172.20162 * 100 = 4.683 %
• Oxygen (O) = 47.9982 : 172.20162 * 100 = 27.873 %
• Sulfur (S) = 32.065 : 172.20162 * 100 = 18.621 %

Molar mass calculator