1. Bell Work
4NH3 + 3O2    N2 + 6 H2O
How many moles of oxygen react with 0.23 moles of NH3?

2. Limiting Reagent

3. Open the Link
virtual lab link

4. C H O

6. ID the limiting reagent.
How do you know?

7. ID the limiting reagent.
How do you know?

8. Balance the equation
Go to the virtual lab and check the answer.

9. 2 reactants that you can control Go to the virtual lab and select
different number of moles.
Copy and fill in the table on
the next page.
2 reactants that
you can control

10. Moles C2H6 O2 Moles CO2 Excess? Circle the Limiting Reagent,
Calculate the moles CO2, Calculate Excess
Moles
C2H6 O2
Moles CO2
Excess?

11. Questions What would be different if you had mass instead of moles?
What is the difference between a limiting reagent and excess reagent?