Molar and molecular weight of CrO2

• Relative molecular weight of CrO2: 83.9949
• Molar mass of CrO2: 83.9949 g/mol (0.08399 kg/mol)

Calculation of the relative molecular and molar mass of CrO2

• Mr[CrO2] = Ar[Cr] + Ar[O] * 2 = 51.9961 + 15.9994 * 2 = 83.9949
• Molar mass (kg/mol) = Mr[CrO2] : 1000 = 83.9949 : 1000 = 0.08399 kg/mol

CrO2: percent composition by element

• Chromium (Cr) = 51.9961 : 83.9949 * 100 = 61.904 %
• Oxygen (O) = 31.9988 : 83.9949 * 100 = 38.096 %

Molar mass calculator