Molar and molecular weight of KH2PO2

• Molecular formula: KH2PO2 or H2KO2P
• Relative molecular weight of KH2PO2: 104.086742
• Molar mass of KH2PO2: 104.086742 g/mol (0.10409 kg/mol)

Calculation of the relative molecular and molar mass of KH2PO2

• Mr[KH2PO2] = Ar[H] * 2 + Ar[K] + Ar[O] * 2 + Ar[P] = 1.00794 * 2 + 39.0983 + 15.9994 * 2 + 30.973762 = 104.086742
• Molar mass (kg/mol) = Mr[KH2PO2] : 1000 = 104.086742 : 1000 = 0.10409 kg/mol

KH2PO2: percent composition by element

• Hydrogen (H) = 2.01588 : 104.086742 * 100 = 1.937 %
• Potassium (K) = 39.0983 : 104.086742 * 100 = 37.563 %
• Oxygen (O) = 31.9988 : 104.086742 * 100 = 30.742 %
• Phosphorus (P) = 30.973762 : 104.086742 * 100 = 29.758 %

Molar mass calculator