Molar and molecular weight of SiH4

• Molecular formula: SiH4 or H4Si
• Relative molecular weight of SiH4: 32.11726
• Molar mass of SiH4: 32.11726 g/mol (0.03212 kg/mol)

Calculation of the relative molecular and molar mass of SiH4

• Mr[SiH4] = Ar[H] * 4 + Ar[Si] = 1.00794 * 4 + 28.0855 = 32.11726
• Molar mass (kg/mol) = Mr[SiH4] : 1000 = 32.11726 : 1000 = 0.03212 kg/mol

SiH4: percent composition by element

• Hydrogen (H) = 4.03176 : 32.11726 * 100 = 12.553 %
• Silicon (Si) = 28.0855 : 32.11726 * 100 = 87.447 %

Molar mass calculator