Molar and molecular weight of Cs2O

• Relative molecular weight of Cs2O: 281.8103038
• Molar mass of Cs2O: 281.8103038 g/mol (0.28181 kg/mol)

Calculation of the relative molecular and molar mass of Cs2O

• Mr[Cs2O] = Ar[Cs] * 2 + Ar[O] = 132.9054519 * 2 + 15.9994 = 281.8103038
• Molar mass (kg/mol) = Mr[Cs2O] : 1000 = 281.8103038 : 1000 = 0.28181 kg/mol

Cs2O: percent composition by element

• Cesium (Cs) = 265.8109038 : 281.8103038 * 100 = 94.323 %
• Oxygen (O) = 15.9994 : 281.8103038 * 100 = 5.677 %

Molar mass calculator