Virtually all the nitric acid manufactured commercially is obtained by the ammonia oxidization process. This involves this first step: Ammonia gas combines with oxygen to form nitrogen monoxide and water vapour.

Question

a) Write a balanced equation for the reaction
6 NH3 + 4 O2 -> 4 NO + 6 H2O

b) The reaction of 36.61g of NH3 produces a 6.11% yield of water. How many grams are produced?

Answer 1

mols NH3 = grams/molar mass = ?
Using the coefficients in the balanced equation, convert mols NH3 to mols H2o
Convert mols H2O to grams H2O at 100% yield. g H2O = mols H2O x molar mass H2O.

Then g H2O @100%yield x 0.0611 = g H2O produced at 6.11% yield.