Molar and molecular weight of Be(AsO3)2

• Molecular formula: Be(AsO3)2 or As2BeO6
• Relative molecular weight of Be(AsO3)2: 254.851782
• Molar mass of Be(AsO3)2: 254.851782 g/mol (0.25485 kg/mol)

Calculation of the relative molecular and molar mass of Be(AsO3)2

• Mr[Be(AsO3)2] = Ar[As] * 2 + Ar[Be] + Ar[O] * 6 = 74.9216 * 2 + 9.012182 + 15.9994 * 6 = 254.851782
• Molar mass (kg/mol) = Mr[Be(AsO3)2] : 1000 = 254.851782 : 1000 = 0.25485 kg/mol

Be(AsO3)2: percent composition by element

• Arsenic (As) = 149.8432 : 254.851782 * 100 = 58.796 %
• Beryllium (Be) = 9.012182 : 254.851782 * 100 = 3.536 %
• Oxygen (O) = 95.9964 : 254.851782 * 100 = 37.668 %

Molar mass calculator