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Answer to Question #37662 in Physical Chemistry for John Henderson

Question #37662
a)If 7.31 moles of Ethane(C2H6) undergoes combustion according to the unbalanced equation C2H6+O2->CO2+H20, how much oxygen is required? Answer in units of mol.

b)How much CO2 is formed? Answer in units of mol.

c)How much H2O is formed? answer in units of mol.
Expert's answer
Write down the balanced equation of the process:

2C2H6 + 7O2 -> 4CO2 + 6H2O

According to the equation,
n(O2) = 7/2*n(C2H6) = 25.6 mol
n(CO2) = 4/2*n(C2H6) = 14.6 mol
n(H2O) = 6/2*n(C2H6) = 21.9 mol

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