1. Warm-Up *Don’t turn in your lab just yet
How many molecules are in 5.78 mol of ammonium nitrate?
What is the volume (in liters) of 835 g of SO3 gas at STP?

2. House Keeping Clean up after yourselves! You can’t give up!
Mole Conversions Practice Due Tomorrow!

3. Mole Island More Explanation

4. Stoichiometry

5. Stoichiometry
The relationship between the relative quantities of substances in a chemical reaction.
Example: N2H4 + 2 H2O2  N2 + 4 H2O
Mole Ratio:
1 mol N2H4 = 2 mol H2O2 = 1 mol N2 = 4 mol H2O

7. Practice Problem 1
How many liters of oxygen gas are necessary for the combustion of g of ethanol (C2H5OH) at STP? The balanced equation is:
C2H5OH + 3 O2  2 CO2 + 3 H2O

8. Warm up Turn in your Mole Conversions Practice
Solve #2-4 from yesterday’s notes

9. Practice Problem 2
What volume of hydrogen gas, when combined with nitrogen gas, is necessary to produce 16.0 L of ammonia gas (NH3) at STP?

10. Practice Problem 3
How many moles of bromine gas are produced when fluorine reacts with g of potassium bromide?

11. Practice Problem 4
In a thermite reaction, powdered aluminum reacts with iron (III) oxide to produce aluminum oxide and molten iron. What mass of aluminum oxide is produced when 2.3 g of aluminum reacts with iron (III) oxide?

12. Warm up
In lab you use exactly g of KMnO4. How much carbon dioxide should form?
You will need the balanced equation for this lab…we will go over your prelab in a minute, so if you don’t have the balanced equation, begin setting it up anyway.

13. Warm up Write a reaction for the synthesis of calcium chloride.
We will discuss labs before you turn them in!
Write a reaction for the synthesis of calcium chloride.
What mass of calcium chloride can be produced if you have 3.20 g of calcium?

14. Quiz Day! Pick up one of each reference table. DO NOT WRITE ON THEM!
After Quiz
Limiting Reactants Worksheet (finish for homework)