1. Mole to Mole Conversions

2. Agenda Seek and Solve Mole-Mole Conversions Review for Quiz next class
Notes
Practice

3. Reminders Check grade- make sure everything is okay
Extra Credit is due on Wednesday
Quiz is on Wednesday
Mole Conversion Problems
Empirical Formula

4. Objective
Convert between moles of one chemical to moles of another

5. Materials You Need

6. Review: Stoichiometry
Branch of chemistry that deals with the quantitative relationships that exist between the reactants and products in a chemical reaction
“Stochio” = Greek for element
“metry” = measurement

7. Review: & 2 Step Mole Conversions
Moles allow us to convert between particles, mass, and volume
1 mole G = 6.02 x 1023 particles G
1 mole G = Molar Mass (g/mol) G
1 mole G = 22.4 L G

8. Crumbs Inc.
What if you needed 32 cookies, how much butter would you need?
What if you had 3 cups of flour and wanted to use it all, how many eggs would you then need?
Easy Chocolate Chip Cookies
2 cups flour
1.5 cups sugar
2 sticks butter
2 eggs
1 cup chocolate chips
Combine ingredients, mix well. Grease cookie sheet. Preheat oven to 350 degrees. Spoon drop cookies onto sheet and bake 8-10 minutes.
Yields 16 cookies

9. Mole Ratios Convert from chemical G to chemical W using molar ratios
We get the number of moles from the coefficients in the balanced equation
Coefficient = # moles in the reaction

10. Molar Ratios Convert from chemical G to chemical W using molar ratios
We get the number of moles from the coefficients in the balanced equation
Coefficient = # moles in the reaction

11. Practice Problem 1
How many moles of ammonia can be produced from 11 moles of nitrogen gas?

12. Practice Problem 2
If you want to react 5.2 moles of hydrogen gas, how many moles of nitrogen gas would be needed?