Molar and molecular weight of CrO

• Relative molecular weight of CrO: 67.9955
• Molar mass of CrO: 67.9955 g/mol (0.068 kg/mol)

Calculation of the relative molecular and molar mass of CrO

• Mr[CrO] = Ar[Cr] + Ar[O] = 51.9961 + 15.9994 = 67.9955
• Molar mass (kg/mol) = Mr[CrO] : 1000 = 67.9955 : 1000 = 0.068 kg/mol

CrO: percent composition by element

• Chromium (Cr) = 51.9961 : 67.9955 * 100 = 76.47 %
• Oxygen (O) = 15.9994 : 67.9955 * 100 = 23.53 %

Molar mass calculator