Molar and molecular weight of H4Al2O8S

• Molecular formula: H4Al2O8S or (Al(OH)2)2SO4
• Relative molecular weight of H4Al2O8S: 218.0550372
• Molar mass of H4Al2O8S: 218.0550372 g/mol (0.21806 kg/mol)

Calculation of the relative molecular and molar mass of H4Al2O8S

• Mr[H4Al2O8S] = Ar[H] * 4 + Ar[Al] * 2 + Ar[O] * 8 + Ar[S] = 1.00794 * 4 + 26.9815386 * 2 + 15.9994 * 8 + 32.065 = 218.0550372
• Molar mass (kg/mol) = Mr[H4Al2O8S] : 1000 = 218.0550372 : 1000 = 0.21806 kg/mol

H4Al2O8S: percent composition by element

• Hydrogen (H) = 4.03176 : 218.0550372 * 100 = 1.849 %
• Aluminum (Al) = 53.9630772 : 218.0550372 * 100 = 24.747 %
• Oxygen (O) = 127.9952 : 218.0550372 * 100 = 58.699 %
• Sulfur (S) = 32.065 : 218.0550372 * 100 = 14.705 %

Molar mass calculator