Molar and molecular weight of IK

• Molecular formula: IK or KI
• Relative molecular weight of IK: 166.00277
• Molar mass of IK: 166.00277 g/mol (0.166 kg/mol)

Calculation of the relative molecular and molar mass of IK

• Mr[IK] = Ar[I] + Ar[K] = 126.90447 + 39.0983 = 166.00277
• Molar mass (kg/mol) = Mr[IK] : 1000 = 166.00277 : 1000 = 0.166 kg/mol

IK: percent composition by element

• Iodine (I) = 126.90447 : 166.00277 * 100 = 76.447 %
• Potassium (K) = 39.0983 : 166.00277 * 100 = 23.553 %

Molar mass calculator