The reaction of fluorine with ammonia produces dinitrogen tetrafluoride and hydrogen fluoride.
5 F2(g) + 2 NH3(g) N2F4(g) + 6 HF(g)
(b) How many grams of NH3, are required to produce 4.37 g HF?
(c) How many grams of N2F4 can be produced from 235 g F2?