Molar and molecular weight of Bi2Se3

• Relative molecular weight of Bi2Se3: 654.8408
• Molar mass of Bi2Se3: 654.8408 g/mol (0.65484 kg/mol)

Calculation of the relative molecular and molar mass of Bi2Se3

• Mr[Bi2Se3] = Ar[Bi] * 2 + Ar[Se] * 3 = 208.9804 * 2 + 78.96 * 3 = 654.8408
• Molar mass (kg/mol) = Mr[Bi2Se3] : 1000 = 654.8408 : 1000 = 0.65484 kg/mol

Bi2Se3: percent composition by element

• Bismuth (Bi) = 417.9608 : 654.8408 * 100 = 63.826 %
• Selenium (Se) = 236.88 : 654.8408 * 100 = 36.174 %

Molar mass calculator