Molar and molecular weight of (CH3)2SiCl2

• Molecular formula: (CH3)2SiCl2 or C2H6Cl2Si
• Relative molecular weight of (CH3)2SiCl2: 129.06054
• Molar mass of (CH3)2SiCl2: 129.06054 g/mol (0.12906 kg/mol)

Calculation of the relative molecular and molar mass of (CH3)2SiCl2

• Mr[(CH3)2SiCl2] = Ar[C] * 2 + Ar[H] * 6 + Ar[Cl] * 2 + Ar[Si] = 12.0107 * 2 + 1.00794 * 6 + 35.453 * 2 + 28.0855 = 129.06054
• Molar mass (kg/mol) = Mr[(CH3)2SiCl2] : 1000 = 129.06054 : 1000 = 0.12906 kg/mol

(CH3)2SiCl2: percent composition by element

• Carbon (C) = 24.0214 : 129.06054 * 100 = 18.613 %
• Hydrogen (H) = 6.04764 : 129.06054 * 100 = 4.686 %
• Chlorine (Cl) = 70.906 : 129.06054 * 100 = 54.94 %
• Silicon (Si) = 28.0855 : 129.06054 * 100 = 21.761 %

Molar mass calculator