1. STOICHIOMETRY

2. Consider: This recipe for bomb *** French Toast
5 Egg + 1 Cup of Milk griddle
10 Bread + 1 Tsp Vanilla > 10 French Toast

3. Look at the recipe for bomb triple star French Toast.
Chemistry problems
Look at the recipe for bomb triple star French Toast.
What does this recipe tell us?
In order to make 10 pieces of french toast, you need 5 eggs, 10 pieces of bread, 1 cup of milk and 1 teaspoon of vanilla.
Ratio between bread and FT?
Ratio between eggs and FT?
Ratio between teaspoons vanilla and FT?

4. 5 Egg + 1 Cup of Milk + griddle 10 Bread + 1 Tsp Vanilla -----------> 10 French Toast
How many eggs are needed in order to make 50 pieces of french toast?
I only want 4 pieces of french toast, how many eggs would I need?
I want to use up my last 3 Tsp of Vanilla making some french toast, how much milk will I need?

5. Limiting Reagent
Yo, Mr. Stephan, tell these guys about that time when you were tragically reminded of what limited reagents were all about...

6. Limiting Reagent
Limiting Reagent – The reactant that runs out first when doing a chemical reaction.
Excess Reagent – Any reactant that you still have left over when the reaction is complete.
• Write down what the limiting reagent was in the story and explain HOW it was limiting.

7. Limiting Reagent 2 H2 + O2 → 2 H2O
Convert the measurements of each reactant you have into moles. Then compare using mole ratios.
2 H2 + O2 → 2 H2O
You start with 4.5 L of O2 and 8L of H2. What is the limiting reagent?
Ratio
2 moles H2: 1 mole O2

8. 5 Egg + 1 Cup of Milk + griddle 10 Bread + 1 Tsp Vanilla -----------> 10 French Toast
Theoretical yield:
Use dimensional analysis to calculate how much product will be formed. The amount that you calculate is called the THEORETICAL YIELD. In other words, if everything goes perfectly, this is how much you will produce.
Calculate: How much French Toast can be produced if 1.5 cups of milk is used?

9. Theoretical vs Actual – Life aint perfect!
Theoretical: If everything went smoothly, I expected to have 15 pieces of french toast.
Actual: One of the pieces of bread got too soggy and broke apart. Only 14 pieces of french toast were made. =[
% Yield = Actual yield
Theoretical yield

10. IN SUMMARY:
1. Balance the equation so you can see what the mole ratios are.
2. Calculate theoretical yield using DIMENSIONAL ANALYSIS.
3. If you end up actually doing the reaction, compare the actual to the theoretical to find the % yield.