Molar and molecular weight of CrI2

• Relative molecular weight of CrI2: 305.80504
• Molar mass of CrI2: 305.80504 g/mol (0.30581 kg/mol)

Calculation of the relative molecular and molar mass of CrI2

• Mr[CrI2] = Ar[Cr] + Ar[I] * 2 = 51.9961 + 126.90447 * 2 = 305.80504
• Molar mass (kg/mol) = Mr[CrI2] : 1000 = 305.80504 : 1000 = 0.30581 kg/mol

CrI2: percent composition by element

• Chromium (Cr) = 51.9961 : 305.80504 * 100 = 17.003 %
• Iodine (I) = 253.80894 : 305.80504 * 100 = 82.997 %

Molar mass calculator