117.6 moles of CO2 would be produced by burning 9.8 moles of C12H26 with 19.2 moles of O2.
The balanced chemical equation states that 19.2 moles of O2 will be produced when 9.8 moles of C12H26 burn:
24 moles of CO2 are created from 2 moles of C12H26.
Thus, for C12H26 in 9.8 moles:
24 moles of CO2 divided by 2 moles of C12H26 equals 9.8 moles of C12H26 in moles.
CO2 moles = 24 * 4.9
CO2 moles equal 117.6 moles.
Consequently, 117.6 moles of CO2 would be produced by burning 9.8 moles of C12H26 with 19.2 moles of O2.