Question

Определите массовую долю азота в веществе NO2

Answer 1

М(NO2) = 14 + 32 = 46г/моль
ω=(14/46)×100= 30 процентов
Ответ:30 процентов

Answer 2

NO2

14+16*2=46 

w(N)=14/46=30%

Answer 3

Determining the Mass Fraction of Nitrogen in NO2

The mass fraction of nitrogen in the compound NO2 can be calculated using the molar masses of nitrogen and oxygen. The molar mass of nitrogen (N) is 14 g/mol, and the molar mass of oxygen (O) is 16 g/mol. The molar mass of NO2 is therefore 14 (for N) + 2 * 16 (for O) = 46 g/mol.

Using this information, we can calculate the mass fraction of nitrogen in NO2:

Mass fraction of nitrogen (w(N)) = (Molar mass of nitrogen) / (Molar mass of NO2) = 14 / 46 ≈ 0.30

This can also be expressed as a percentage:

Mass fraction of nitrogen (w(N)) ≈ 0.30 * 100 ≈ 30%

Therefore, the mass fraction of nitrogen in NO2 is approximately 30%