Molar and molecular weight of CrBr3

• Relative molecular weight of CrBr3: 291.7081
• Molar mass of CrBr3: 291.7081 g/mol (0.29171 kg/mol)

Calculation of the relative molecular and molar mass of CrBr3

• Mr[CrBr3] = Ar[Cr] + Ar[Br] * 3 = 51.9961 + 79.904 * 3 = 291.7081
• Molar mass (kg/mol) = Mr[CrBr3] : 1000 = 291.7081 : 1000 = 0.29171 kg/mol

CrBr3: percent composition by element

• Chromium (Cr) = 51.9961 : 291.7081 * 100 = 17.825 %
• Bromine (Br) = 239.712 : 291.7081 * 100 = 82.175 %

Molar mass calculator