Using the following equation, #2C_2H_6 + 7O_2 -> 4CO_2 + 6H_2O#, if 2.5 g #C_2H_6# react with 170 g #O_2#, what is the limiting reactant?
Clearly, ethane is the limiting reagent. Why
You have the stoichiometric equation, which tells you, unequivocally, that 2 equiv ethane reacts with 7 equiv dioxygen gas (alternatively 1 equiv ethane reacts with 3.5 equiv
There is a stoichiometric EXCESS of dioxygen gas.
Can you tell us how much carbon dioxide would be produced given complete combustion?