Molar and molecular weight of CrCl2

• Relative molecular weight of CrCl2: 122.9021
• Molar mass of CrCl2: 122.9021 g/mol (0.1229 kg/mol)

Calculation of the relative molecular and molar mass of CrCl2

• Mr[CrCl2] = Ar[Cr] + Ar[Cl] * 2 = 51.9961 + 35.453 * 2 = 122.9021
• Molar mass (kg/mol) = Mr[CrCl2] : 1000 = 122.9021 : 1000 = 0.1229 kg/mol

CrCl2: percent composition by element

• Chromium (Cr) = 51.9961 : 122.9021 * 100 = 42.307 %
• Chlorine (Cl) = 70.906 : 122.9021 * 100 = 57.693 %

Molar mass calculator