Molar and molecular weight of CaS

• Relative molecular weight of CaS: 72.143
• Molar mass of CaS: 72.143 g/mol (0.07214 kg/mol)

Calculation of the relative molecular and molar mass of CaS

• Mr[CaS] = Ar[Ca] + Ar[S] = 40.078 + 32.065 = 72.143
• Molar mass (kg/mol) = Mr[CaS] : 1000 = 72.143 : 1000 = 0.07214 kg/mol

CaS: percent composition by element

• Calcium (Ca) = 40.078 : 72.143 * 100 = 55.554 %
• Sulfur (S) = 32.065 : 72.143 * 100 = 44.446 %

Molar mass calculator