Question

Base your answer to the question on the information below and on your knowledge of chemistry. Nitrogen dioxide, NO2, is a dark brown gas that is used to make nitric acid and to bleach flour. Nitrogen dioxide has a boiling point of 294 K at 101.3 kPa. In a rigid cylinder with a movable piston, nitrogen dioxide can be in equilibrium with colorless dinitrogen tetroxide, N2O4. This equilibrium is represented by the equation below. 2NO2(g) ⇌ N2O4(g) + 58 kJ Determine the oxidation state of nitrogen in nitrogen dioxide.

Answer 1

Answer:

+4

Explanation:

Hello,

In this case, considering nitrogen dioxide's formula:

$NO_2$

And due to the fact that oxygen's oxidation state is -2 in this case, we could find nitrogen's oxidation state in nitrogen dioxide by using a balance charge:

$N^{+x}O_2^{-2}\\x-4=0\\x=4$

For that reason, nitrogen's oxidation state is +4:

$N^{+4}O_2^{-2}$

Best regards.