Molar and molecular weight of Co2(CO)8

• Molecular formula: Co2(CO)8 or C8Co2O8
• Relative molecular weight of Co2(CO)8: 341.94719
• Molar mass of Co2(CO)8: 341.94719 g/mol (0.34195 kg/mol)

Calculation of the relative molecular and molar mass of Co2(CO)8

• Mr[Co2(CO)8] = Ar[C] * 8 + Ar[Co] * 2 + Ar[O] * 8 = 12.0107 * 8 + 58.933195 * 2 + 15.9994 * 8 = 341.94719
• Molar mass (kg/mol) = Mr[Co2(CO)8] : 1000 = 341.94719 : 1000 = 0.34195 kg/mol

Co2(CO)8: percent composition by element

• Carbon (C) = 96.0856 : 341.94719 * 100 = 28.1 %
• Cobalt (Co) = 117.86639 : 341.94719 * 100 = 34.469 %
• Oxygen (O) = 127.9952 : 341.94719 * 100 = 37.431 %

Molar mass calculator