Molar and molecular weight of CoS

• Relative molecular weight of CoS: 90.998195
• Molar mass of CoS: 90.998195 g/mol (0.091 kg/mol)

Calculation of the relative molecular and molar mass of CoS

• Mr[CoS] = Ar[Co] + Ar[S] = 58.933195 + 32.065 = 90.998195
• Molar mass (kg/mol) = Mr[CoS] : 1000 = 90.998195 : 1000 = 0.091 kg/mol

CoS: percent composition by element

• Cobalt (Co) = 58.933195 : 90.998195 * 100 = 64.763 %
• Sulfur (S) = 32.065 : 90.998195 * 100 = 35.237 %

Molar mass calculator