Molar and molecular weight of HNO2

• Molecular formula: HNO2 or HONO
• Relative molecular weight of HNO2: 47.01344
• Molar mass of HNO2: 47.01344 g/mol (0.04701 kg/mol)

Calculation of the relative molecular and molar mass of HNO2

• Mr[HNO2] = Ar[H] + Ar[N] + Ar[O] * 2 = 1.00794 + 14.0067 + 15.9994 * 2 = 47.01344
• Molar mass (kg/mol) = Mr[HNO2] : 1000 = 47.01344 : 1000 = 0.04701 kg/mol

HNO2: percent composition by element

• Hydrogen (H) = 1.00794 : 47.01344 * 100 = 2.144 %
• Nitrogen (N) = 14.0067 : 47.01344 * 100 = 29.793 %
• Oxygen (O) = 31.9988 : 47.01344 * 100 = 68.063 %

Molar mass calculator