Determine the valence of nitrogen in the compound NO2, calculate the mass fractions of elements in this compound.
| February 23, 2021 | education
In nitrogen dioxide NO2, the nitrogen valence is +4 (for oxygen it is constant, -2).
The atomic masses of nitrogen and oxygen are, respectively, 14 amu. and 16 amu, hence M (%) N = 14: (14 + 16 * 2) * 100%
= 30.43%, M (%) O = (16 * 2): (14 + 16 * 2) * 100% = 69.57%.
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