The document outlines the agenda for a chemistry class. It includes final project presentations from several students. It discusses reviewing for an exam on chemical reactions and beginning a new unit on stoichiometry, which will cover mole ratios, limiting reactants, theoretical and actual yields, and percent yields. An upcoming test on stoichiometry is also announced, which will contain problems worth 2 and 4 points each for a total of 80 possible points.

1. Welcome to Chemistry II – Day X
Portland Evening Scholars
Mr. Treothe Bullock – Instructor
 Final Project Presentations
 Oksana, Riley, Spencer, Katie,
Rocio & Malik
 Notes
 Next week – Suzana, Everett,
Lucy,Francesca & ?
 Unit 8 Chemical Reactions
 Chapter 8 review
 Complete Net Ionic Equations
Review
 Exam next week
 Unit 9 Stoichiometry
 Read over the Unit guide and
take the preassessment
 Stoichiometry
 Using mole ratios as a
conversion factor
 Predicting limiting reactants –
product amounts etc.
 Theoretical vs. Actual or %
yields
 Prelab Equations &
Calculations
 Absolute Zero

2. Stoichiometry-
Big Ideas/Essential Questions
 How are moles used in chemistry?
 How is the limiting reactant determined?
 How is percent yield calculated?

3. Stoichiometry –
Learning Targets
 I (the student) can…

 Use a balanced equation to determine mole ratios.
 Use stoichiometry to find an unknown quantity of a reactant or
product with a known quantity from either a reactant or product.
 Distinguish between the limiting and excess reactant, and use this
information to calculate products.
 Calculate percent yield using the theoretical and actual yield.

4. Stoichiometry
-Content Vocabulary
 Stoichiometry,
 molar ratios,
 molar mass,
 limiting reagents,
 excess reagents,
 theoretical yield,
 actual yield, and
 percent yield.

5. Chapter 9 Test
 Problems 1 – 20
 2 pts each
 40 points total
 Problems 21-30
 4 pts each
 40 pts Total
 80 pts possible
 75 = 100%
 68+ A
 60+ B
 53+ C
 45+ D

6. Chapter 9 Test
 Problems 1 – 20
 2 pts each
 40 points total
 Problems 21-30
 4 pts each
 40 pts Total
 80 pts possible
 75 = 100%
 68+ A
 60+ B
 53+ C
 45+ D