- Relative molecular weight of K: 39.0983
- Molar mass of K: 39.0983 g/mol (0.0391 kg/mol)
Element | Total atoms | Atomic mass | Total mass |
---|---|---|---|
K (Potassium) | 1 | 39.0983 | 39.0983 |
39.0983 |
- Mr[K] = Ar[K] = 39.0983 = 39.0983
- Molar mass (kg/mol) = Mr[K] : 1000 = 39.0983 : 1000 = 0.0391 kg/mol