Molar and molecular weight of C20H14O4

• Relative molecular weight of C20H14O4: 318.32276
• Molar mass of C20H14O4: 318.32276 g/mol (0.31832 kg/mol)

Calculation of the relative molecular and molar mass of C20H14O4

• Mr[C20H14O4] = Ar[C] * 20 + Ar[H] * 14 + Ar[O] * 4 = 12.0107 * 20 + 1.00794 * 14 + 15.9994 * 4 = 318.32276
• Molar mass (kg/mol) = Mr[C20H14O4] : 1000 = 318.32276 : 1000 = 0.31832 kg/mol

C20H14O4: percent composition by element

• Carbon (C) = 240.214 : 318.32276 * 100 = 75.462 %
• Hydrogen (H) = 14.11116 : 318.32276 * 100 = 4.433 %
• Oxygen (O) = 63.9976 : 318.32276 * 100 = 20.105 %

Molar mass calculator