Nitric oxide contains 36.84% nitrogen by weight. What is this connection?

Oxygen with nitrogen forms the compound nitric oxide. In this case, nitrogen can have different valences, resulting in the following oxides: NO, N2O, N2O3, NO2, N2O5.
To solve the problem, you need to find an oxide in which the mass of nitrogen is 36.84% and the mass of oxygen is 63.16%.

1. NO – molar mass 14 + 16 = 30 g.

14 * 100/30 = 46.67 g is not suitable.

2 .N2O – molar mass 28 + 16 = 44 g.

28 * 100/44 = 63.64g is not suitable.

3.N2O3 – molar mass 28 +48 = 76 g.

28 * 100/76 = 36.84g fits.

Answer: this substance is nitric oxide (III) N2O3.