Molar and molecular weight of Ag2SeO3

• Relative molecular weight of Ag2SeO3: 342.6946
• Molar mass of Ag2SeO3: 342.6946 g/mol (0.34269 kg/mol)

Calculation of the relative molecular and molar mass of Ag2SeO3

• Mr[Ag2SeO3] = Ar[Ag] * 2 + Ar[Se] + Ar[O] * 3 = 107.8682 * 2 + 78.96 + 15.9994 * 3 = 342.6946
• Molar mass (kg/mol) = Mr[Ag2SeO3] : 1000 = 342.6946 : 1000 = 0.34269 kg/mol

Ag2SeO3: percent composition by element

• Silver (Ag) = 215.7364 : 342.6946 * 100 = 62.953 %
• Selenium (Se) = 78.96 : 342.6946 * 100 = 23.041 %
• Oxygen (O) = 47.9982 : 342.6946 * 100 = 14.006 %

Molar mass calculator