A #600*cm^3# volume of ethane gas is completely combusted with #2500*cm^3# of dioxygen gas to give carbon dioxide and water. What is the reagent in excess, and what volume would #CO_2(g)# occupy after the reaction....?
The volume of carbon dioxide is
We are given the amounts of two reactants, so this is a limiting reactant problem.
We know that we will need a balanced equation with volumes of the compounds involved.
1. Gather all the information in one place.
The molar quantities of the gases are directly proportional to the volumes, so we can use volumes as a measure of moles.
2. Identify the limiting reactant
An easy way to identify the limiting reactant is to calculate the "moles of reaction" each reactant will give.
You divide the moles of each reactant by its corresponding coefficient in the balanced equation.
I did that for you in the table above.
3. Calculate the theoretical volume of
4. Calculate the volume of
5. Calculate the volume of