N2+3H2 gives 2NH3.what is the equivalent mass of nitrogen in NH3?

May 27, 2018

Equivalent mass of $N$ $= \frac{14}{3}$gm

Explanation:

Given reaction is
${N}_{2} + 3 {H}_{2} \rightarrow 2 N {H}_{3}$

Here oxidation state of $N$ in${N}_{2}$ is 0. Whereas, oxidation state of $N$ in$N {H}_{3}$ is -3.
So, Three electrons are accepted by $N$.
Hence, Valence factor or n-factor $\left({n}_{f}\right)$ 0f $N$ is $3$.

As we know,
Equivalent mass of $N$ $=$ Molar Mass of $N$$/ {n}_{f}$

Equivalent mass of $N$ $= \frac{14}{3}$gm