Molar and molecular weight of CBr4

• Relative molecular weight of CBr4: 331.6267
• Molar mass of CBr4: 331.6267 g/mol (0.33163 kg/mol)

Calculation of the relative molecular and molar mass of CBr4

• Mr[CBr4] = Ar[C] + Ar[Br] * 4 = 12.0107 + 79.904 * 4 = 331.6267
• Molar mass (kg/mol) = Mr[CBr4] : 1000 = 331.6267 : 1000 = 0.33163 kg/mol

CBr4: percent composition by element

• Carbon (C) = 12.0107 : 331.6267 * 100 = 3.622 %
• Bromine (Br) = 319.616 : 331.6267 * 100 = 96.378 %

Molar mass calculator