1.) The combustion of propane (C3H8) produces carbon dioxide and steam: C3H8(g)+
ID: 516722 • Letter: 1
Question
1.) The combustion of propane (C3H8) produces carbon dioxide and steam:
C3H8(g)+5O2(g)===>3CO2(g)+4H2O(l)
How many moles of CO2 are produced when 9.0 mol of propane are burned in an excess of oxygen?
2.) 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 88.2 g of each reactant?
4NH3(g) + 5O2(g)====>4NO(g)+6H2O(g)
Explanation / Answer
1)
C3H8(g)+5O2(g)===>3CO2(g)+4H2O(l)
According to the reaction,
number of mol of CO2 = 3*number of moles of C3H8
= 3*9.0 mol
= 27.0 mol
Answer: 27.0 mol
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