Molar and molecular weight of NO2

• Relative molecular weight of NO2: 46.0055
• Molar mass of NO2: 46.0055 g/mol (0.04601 kg/mol)

Calculation of the relative molecular and molar mass of NO2

• Mr[NO2] = Ar[N] + Ar[O] * 2 = 14.0067 + 15.9994 * 2 = 46.0055
• Molar mass (kg/mol) = Mr[NO2] : 1000 = 46.0055 : 1000 = 0.04601 kg/mol

NO2: percent composition by element

• Nitrogen (N) = 14.0067 : 46.0055 * 100 = 30.446 %
• Oxygen (O) = 31.9988 : 46.0055 * 100 = 69.554 %

Molar mass calculator