Question

how to calculate percentage of nitrogen in NH3

Answer 1

Answer:

MASS OF NITROGEN ATOM/ MASS OF AMMONIA

Explanation:

Answer 2

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%.