Molar and molecular weight of HK

• Molecular formula: HK or KH
• Relative molecular weight of HK: 40.10624
• Molar mass of HK: 40.10624 g/mol (0.04011 kg/mol)

Calculation of the relative molecular and molar mass of HK

• Mr[HK] = Ar[H] + Ar[K] = 1.00794 + 39.0983 = 40.10624
• Molar mass (kg/mol) = Mr[HK] : 1000 = 40.10624 : 1000 = 0.04011 kg/mol

HK: percent composition by element

• Hydrogen (H) = 1.00794 : 40.10624 * 100 = 2.513 %
• Potassium (K) = 39.0983 : 40.10624 * 100 = 97.487 %

Molar mass calculator