Molar and molecular weight of Si2Sr

• Molecular formula: Si2Sr or SrSi2
• Relative molecular weight of Si2Sr: 143.791
• Molar mass of Si2Sr: 143.791 g/mol (0.14379 kg/mol)

Calculation of the relative molecular and molar mass of Si2Sr

• Mr[Si2Sr] = Ar[Si] * 2 + Ar[Sr] = 28.0855 * 2 + 87.62 = 143.791
• Molar mass (kg/mol) = Mr[Si2Sr] : 1000 = 143.791 : 1000 = 0.14379 kg/mol

Si2Sr: percent composition by element

• Silicon (Si) = 56.171 : 143.791 * 100 = 39.064 %
• Strontium (Sr) = 87.62 : 143.791 * 100 = 60.936 %

Molar mass calculator