Molar and molecular weight of C2H4Br2

• Molecular formula: C2H4Br2 or CH2BrCH2Br
• Relative molecular weight of C2H4Br2: 187.86116
• Molar mass of C2H4Br2: 187.86116 g/mol (0.18786 kg/mol)

Calculation of the relative molecular and molar mass of C2H4Br2

• Mr[C2H4Br2] = Ar[C] * 2 + Ar[H] * 4 + Ar[Br] * 2 = 12.0107 * 2 + 1.00794 * 4 + 79.904 * 2 = 187.86116
• Molar mass (kg/mol) = Mr[C2H4Br2] : 1000 = 187.86116 : 1000 = 0.18786 kg/mol

C2H4Br2: percent composition by element

• Carbon (C) = 24.0214 : 187.86116 * 100 = 12.787 %
• Hydrogen (H) = 4.03176 : 187.86116 * 100 = 2.146 %
• Bromine (Br) = 159.808 : 187.86116 * 100 = 85.067 %

Molar mass calculator