Molar and molecular weight of SrSi2

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

Calculation of the relative molecular and molar mass of SrSi2

• Mr[SrSi2] = Ar[Si] * 2 + Ar[Sr] = 28.0855 * 2 + 87.62 = 143.791
• Molar mass (kg/mol) = Mr[SrSi2] : 1000 = 143.791 : 1000 = 0.14379 kg/mol

SrSi2: 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