Molar and molecular weight of Cr2(SO4)3

• Molecular formula: Cr2(SO4)3 or Cr2O12S3
• Relative molecular weight of Cr2(SO4)3: 392.18
• Molar mass of Cr2(SO4)3: 392.18 g/mol (0.39218 kg/mol)

Calculation of the relative molecular and molar mass of Cr2(SO4)3

• Mr[Cr2(SO4)3] = Ar[Cr] * 2 + Ar[O] * 12 + Ar[S] * 3 = 51.9961 * 2 + 15.9994 * 12 + 32.065 * 3 = 392.18
• Molar mass (kg/mol) = Mr[Cr2(SO4)3] : 1000 = 392.18 : 1000 = 0.39218 kg/mol

Cr2(SO4)3: percent composition by element

• Chromium (Cr) = 103.9922 : 392.18 * 100 = 26.516 %
• Oxygen (O) = 191.9928 : 392.18 * 100 = 48.955 %
• Sulfur (S) = 96.195 : 392.18 * 100 = 24.528 %

Molar mass calculator