Molar and molecular weight of CoSO4

• Molecular formula: CoSO4 or CoO4S
• Relative molecular weight of CoSO4: 154.995795
• Molar mass of CoSO4: 154.995795 g/mol (0.155 kg/mol)

Calculation of the relative molecular and molar mass of CoSO4

• Mr[CoSO4] = Ar[Co] + Ar[O] * 4 + Ar[S] = 58.933195 + 15.9994 * 4 + 32.065 = 154.995795
• Molar mass (kg/mol) = Mr[CoSO4] : 1000 = 154.995795 : 1000 = 0.155 kg/mol

CoSO4: percent composition by element

• Cobalt (Co) = 58.933195 : 154.995795 * 100 = 38.022 %
• Oxygen (O) = 63.9976 : 154.995795 * 100 = 41.29 %
• Sulfur (S) = 32.065 : 154.995795 * 100 = 20.688 %

Molar mass calculator