Question

The octane rating of gasoline is a relationship of the burningefficiency of the given gasoline mixture to the burning efficiencyof octane (C8H18). (Figure1) Like most hydrocarbons, octane reacts with oxygen gas toproduce carbon dioxide and water. The unbalanced equation for thisreaction is C8H18(g) + O2(g) ? CO2(g) + H2O(g).

Balanced chemical equation is 2C8H18(g) + 25O2(g) ?16CO2(g) + 18H2O(g).

A)-How many moles of water are produced in this reaction?

B)- After the reaction, how much octane is left?

Please, show me