How many moles of are produced from kg of completely burned?

is a hydrocarbon called hexane. When burned, it produces carbon dioxide and water

To answer the question we need to write the balanced chemical reaction. It is

To obtain these coefficients, we first look at carbon, at the left, and give the coefficient Then count at the left, so must have the coefficient But then there will be even quantity of at the left and odd at the right. This requires to change at to at to and at to Then the coefficient at becomes

Now we see that moles of make moles of so mole makes The molar mass of hexane is

Finally, of hexane are moles, so there will be about moles of