Molar and molecular weight of Mg2O7P2

• Molecular formula: Mg2O7P2 or Mg2P2O7
• Relative molecular weight of Mg2O7P2: 222.553324
• Molar mass of Mg2O7P2: 222.553324 g/mol (0.22255 kg/mol)

Calculation of the relative molecular and molar mass of Mg2O7P2

• Mr[Mg2O7P2] = Ar[Mg] * 2 + Ar[O] * 7 + Ar[P] * 2 = 24.305 * 2 + 15.9994 * 7 + 30.973762 * 2 = 222.553324
• Molar mass (kg/mol) = Mr[Mg2O7P2] : 1000 = 222.553324 : 1000 = 0.22255 kg/mol

Mg2O7P2: percent composition by element

• Magnesium (Mg) = 48.61 : 222.553324 * 100 = 21.842 %
• Oxygen (O) = 111.9958 : 222.553324 * 100 = 50.323 %
• Phosphorus (P) = 61.947524 : 222.553324 * 100 = 27.835 %

Molar mass calculator