Answer:
2 C6H14 (g) + 19 O2 (g) --> 12 CO2 (g) + 14 H2O (g)
Step-by-step explanation:
For solving the stoichiometric calculations, we first need to do two steps. One of them is balancing the reaction equation. Here the balancing is done and we can see that 2 moles of hexane reacts with 19 moles of oxygen to produce 12 moles of carbon dioxide and 14 moles of water.
Now, for 2 moles of hexane, number of moles of oxygen required is 19.
So, for 7.2 moles of hexane, number of moles of oxygen required is.
= 68.4.
So 68.4 moles of oxygen is required.