# The Ostwald process is used commercially to produce nitric acid, which is, in turn, used in many modern chemical processesIn the first step of the Ostwald process, ammonia is reacted with oxygen gas to produce nitric oxide and waterWhat is the maximum mass of H,O that can be produced by combining 51.8 g of each reactant?4 NH, (g)5 02(g)4 NO (g) 6H2O(g)8 H,Оmass

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Step 1

Given,

Mass of NH3 = 51. 8 g

Mass of O2 = 51. 8 g

Moles of NH3 and O2 can be calculated as:

Step 2

The balanced chemical reaction is given as:

4 NH3 (g) + 5 O2 (g) → 4 NO (g) + 6 H2O (g)

Stoichiometric molar ratio of NH3 : O2 = 4 : 5 = 1 : 1.25

Actual molar ratio of NH3 : O2 = 3.05 : 1.62 = 1 : 0.53

Therefore, NH3 is present in excess and O2 is the limiting reagent. Therefore, the mass of H2O produced will depend on O2.

Step 3

From the given reaction, i...

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