(A) Nitric acid, HNO₃ is produced from ammonia and oxygen by the consecutive reactions

How many grams of nitric acid can be obtained from 1.00 kg NH₃(g), if NO(g) in the third reaction is not recycled?

(B) Nitrogen gas is used to inflate automobile air bags. The gas is produced by detonation of a pellet containing NaN₃, KNO₃, and SiO₂ (all solids). When detonated, NaN₃ decomposes into N₂(g) and Na(l). The Na(l) reacts almost instantly with KNO₃ producing more N₂(g) as well as K₂O and Na₂O. The K₂O and Na₂O are each converted independently into harmless salts, Na₂SiO₃ and K₂SiO₃, when they react with SiO₂. Balanced chemical equations for the reactions are given below.

What are the minimum masses of KNO₃ and SiO₂ that must be mixed with 95 g NaN₃ to ensure that no Na, Na₂O, or K₂O remains after the mixture is detonated?

Transcribed Image Text:

4 NH3(g) +50₂(g) →4 NO(g) + 6 H₂O(g) 2 NO(g) + O₂(g) →→→→→ 2 NO₂(g) 3 NO₂(g) + H₂O(1)→→ 2 HNO3(aq) + NO(g)