Some organic compound, in addition to carbon and hydrogen, contains nitrogen, the mass fraction of which

Some organic compound, in addition to carbon and hydrogen, contains nitrogen, the mass fraction of which is 23.7%. This compound has a non-cyclic structure, interacts with a salt salt with the formation of a salt, its molecule contains two hydrocarbon radicals. Based on these data: 1) establish the simplest formula of an organic compound 2) make up its structural formula.

Given:
CxHyNz
ω (N) = 23.7%

To find:
CxHyNz -?

1) Nitrogen-containing organic compounds that react with HCl to form salts are amines:
CnH2n + 3N;
2) Mr (CnH2n + 3N) = N (N) * Ar (N) * 100% / ω (N) = 1 * 14 * 100% / 23.7% = 59;
3) Mr (CnH2n + 3N) = Ar (C) * N (C) + Ar (H) * N (H) + Ar (N) * N (N);
59 = 12 * n + 1 * (2n + 3) + 14 * 1;
n = 3;
4) The simplest formula is C3H9N;
5) Since the molecule contains 2 hydrocarbon radicals, the structural formula is:
CH3-NH-CH2-CH3 – methylethylamine.

Answer: Unknown substance – CH3-NH-CH2-CH3 – methylethylamine.