Molar and molecular weight of KNO2

• Relative molecular weight of KNO2: 85.1038
• Molar mass of KNO2: 85.1038 g/mol (0.0851 kg/mol)

Calculation of the relative molecular and molar mass of KNO2

• Mr[KNO2] = Ar[K] + Ar[N] + Ar[O] * 2 = 39.0983 + 14.0067 + 15.9994 * 2 = 85.1038
• Molar mass (kg/mol) = Mr[KNO2] : 1000 = 85.1038 : 1000 = 0.0851 kg/mol

KNO2: percent composition by element

• Potassium (K) = 39.0983 : 85.1038 * 100 = 45.942 %
• Nitrogen (N) = 14.0067 : 85.1038 * 100 = 16.458 %
• Oxygen (O) = 31.9988 : 85.1038 * 100 = 37.6 %

Molar mass calculator