Answer:
11.8 moles of CO2.
Explanation:
We'll begin by writing the balanced equation for the reaction. This is given below:
2C2H6 + 7O2 —> 4CO2 + 6H2O
From the balanced equation above,
2 moles of C2H6 reacted with 7 moles of O2 to produce 4 moles of CO2 and 6 moles of H2O.
Thus, we can obtain the number of moles of CO2 produced when 5.9 moles of C2H6 is burned in excess O2 as follow:
From the balanced equation above,
2 moles of C2H6 reacted to produce 4 moles of CO2.
Therefore, 5.9 moles of C2H6 will react to produce = (5.9 × 4)/2 = 11.8 moles of CO2.
Thus, 11.8 moles of CO2 were obtained from the reaction.