Answer: 10.4 moles
Explanation:
The balanced equation below represent the production of 2 molecules of ammonia from 1 molecule of nitrogen and 3 molecules of hydrogen respectively
N2 + 3H2 --> 2NH3
Now, if 1 mole of N2 gives 2 moles of NH3
5.2 moles of N2 would give Z moles of NH3
To get the value of Z, cross multiply
Z moles x 1 = 2 moles x 5.2
Z = 10.4 moles
Thus, 5.2 molecules of N2 would yield 10.4 moles of NH3