Question

The formula for calculations of percentage of nitrogen in NH3 is​

Answer 1

Answer:

use the molar mass and assume 100 g multiple by 100. Nitrogen has an average atomic mass of about 14 while hydrogen has an average atomic mass of about 1, so the total molecular mass of NH 3 is about 17. From this we find that the mass percentage of N in NH 3 is about 14/17 = 82%.

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Answer 2

% of N in NH₃ = $\sf{\dfrac{Atomic~mass~of~Nitrogen}{Molar~mass~of~NH₃}}$

= $\sf{\dfrac{14}{17} × 100 } = 82.3~percent$