Answer to Question #141673 in General Chemistry for Dora

Question

Ammonia is produced from its elements in a formation reaction. If 9.16 x 1024 molecules of ammonia are produced, how many moles of nitrogen were used

Answer 1

The reaction

N₂g+ 3H₂g ------> 2NH₃g

In this balanced equation, 2(6.02x10²³) molecules of ammonia are produced.

This figure is 1.204x10²⁴ molecules.

If 1.204x10²⁴ molecules require 1 mole of Nitrogen

9.16 x10²⁴ requires ?

(9.16 x10²⁴x1)/(1.204x10²⁴)

=7.608 moles of nitrogen.