Molar and molecular weight of Rb2SO4

• Molecular formula: Rb2SO4 or O4Rb2S
• Relative molecular weight of Rb2SO4: 266.9982
• Molar mass of Rb2SO4: 266.9982 g/mol (0.267 kg/mol)

Calculation of the relative molecular and molar mass of Rb2SO4

• Mr[Rb2SO4] = Ar[O] * 4 + Ar[Rb] * 2 + Ar[S] = 15.9994 * 4 + 85.4678 * 2 + 32.065 = 266.9982
• Molar mass (kg/mol) = Mr[Rb2SO4] : 1000 = 266.9982 : 1000 = 0.267 kg/mol

Rb2SO4: percent composition by element

• Oxygen (O) = 63.9976 : 266.9982 * 100 = 23.969 %
• Rubidium (Rb) = 170.9356 : 266.9982 * 100 = 64.021 %
• Sulfur (S) = 32.065 : 266.9982 * 100 = 12.009 %

Molar mass calculator