Molar and molecular weight of CaMn2O8

• Molecular formula: CaMn2O8 or Ca(MnO4)2
• Relative molecular weight of CaMn2O8: 277.94929
• Molar mass of CaMn2O8: 277.94929 g/mol (0.27795 kg/mol)

Calculation of the relative molecular and molar mass of CaMn2O8

• Mr[CaMn2O8] = Ar[Ca] + Ar[Mn] * 2 + Ar[O] * 8 = 40.078 + 54.938045 * 2 + 15.9994 * 8 = 277.94929
• Molar mass (kg/mol) = Mr[CaMn2O8] : 1000 = 277.94929 : 1000 = 0.27795 kg/mol

CaMn2O8: percent composition by element

• Calcium (Ca) = 40.078 : 277.94929 * 100 = 14.419 %
• Manganese (Mn) = 109.87609 : 277.94929 * 100 = 39.531 %
• Oxygen (O) = 127.9952 : 277.94929 * 100 = 46.05 %

Molar mass calculator