Molar and molecular weight of FK

• Molecular formula: FK or KF
• Relative molecular weight of FK: 58.0967032
• Molar mass of FK: 58.0967032 g/mol (0.0581 kg/mol)

Calculation of the relative molecular and molar mass of FK

• Mr[FK] = Ar[F] + Ar[K] = 18.9984032 + 39.0983 = 58.0967032
• Molar mass (kg/mol) = Mr[FK] : 1000 = 58.0967032 : 1000 = 0.0581 kg/mol

FK: percent composition by element

• Fluorine (F) = 18.9984032 : 58.0967032 * 100 = 32.701 %
• Potassium (K) = 39.0983 : 58.0967032 * 100 = 67.299 %

Molar mass calculator