Complete and balance the molecular equation, including phases, for the reaction

Question

Complete and balance the molecular equation, including phases, for the reaction of aqueous iron(lll) nitrate, Fe(NO_3)_3 and aqueous lithium hydroxide, LiOH. Enter the balanced net ionic equation, including phases, for this reaction. The Ostwald process is used commercially to produce nitric acid, which is, in turn, used in many modern chemical processes. In the first step of the Ostwald process, ammonia is reacted with oxygen gas to produce nitric oxide and water. What is the maximum mass of H2O that can be produced by combining 50.5 g of each reactant? 4NH_3(g) + 5O_2(g) rightarrow 4NO(g) + 6H_2O(g)

Explanation / Answer

Molecular equation : Fe(NO3)3(aq) + 3 LiOH(aq) -----> Fe(OH)3(s) + 3 LiNO3(aq)

net ionic equation :

Fe+3(aq) + 3 OH-(aq) -----> Fe(OH)3(s)

No of mol of NH3 = 50.5/17 = 2.97 mol

No of mol of O2 = 50.5/32 = 1.6 mol

from equation

4 mol NH3 = 5 mol o2

limiting reagent is O2

No of mol of H2O produced = 1.6*6/5 = 1.92 mol

mass of water = 1.92*18 = 34.56 grams

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