The ratio of numbers of moles of butane to the number of moles of oxygen necessary for a complete of butane is
To determine the ratio of moles of butane (C4H10) to moles of oxygen (O2) needed for the complete combustion of butane, we need to examine the balanced chemical equation for the combustion reaction.
The balanced equation for the combustion of butane is as follows:
2 C4H10 + 13 O2 -> 8 CO2 + 10 H2O
From the balanced equation, we can see that 2 moles of butane react with 13 moles of oxygen to produce 8 moles of carbon dioxide and 10 moles of water.
Therefore, the ratio of moles of butane to moles of oxygen is 2:13.