1. Ideal and Real Stoichiometry
UNIT 9
Ideal and Real Stoichiometry

2. OBJECTIVES
5.5 Calculate the mass to mass stoichiometry for a chemical reaction.
5.6 Calculate the percent yield in a chemical reaction.

3. Review importance/usefulness of dimensional analysis  practice
Warm up:
Write and Balance the following equation.
Hydrogen gas reacts with oxygen gas to produce water vapor
Agenda:
Warm up
Take stoichiometry pre-test. Follow link to google form from class page. stoichiometry.html
Review importance/usefulness of dimensional analysis  practice
What is stoichiometry? Notes and WS
4. Homework: Complete any unfinished work
OBJECTIVES
Students will
use dimensional analysis to solve mathematical problems
Understand what stoichiometry means and how we can use mole ratios to solve a problem.

4. Warm up Agenda: (honors) Warm up
Write and Balance the following equation.
Hydrogen gas reacts with oxygen gas to produce water vapor
Agenda: (honors)
Warm up
Take stoichiometry pre-test. Follow link to google form from class page.
LAB REPORT and powerpoints
Review importance/usefulness of dimensional analysis
What is stoichiometry? Notes and WS
4. Homework: Read section 9.1 of the textbook and complete the section review ws
OBJECTIVES
Students will
use dimensional analysis to solve mathematical problems
Understand what stoichiometry means and how we can use mole ratios to solve a problem.

5. Did you sign up for science fair? Check and review homework
Balance the following equation.
Write all possible mole rations.
___H2 (g) + ___O2 (g) ___ H2O (g)
Agenda:
Did you sign up for science fair?
Check and review homework
What is stoich ws
Honors: (9.1 section review)
Intro to pHet  pHet in pairs
Once you complete the ws come check the answers and take a copy of the HW
4. Homework: Complete post lab questions for pHet
OBJECTIVES
Students will use balanced equations to write mole ratios, predict the amount of products produced, identify the limiting and excess reagents

6. Check and review homework (9.1 section review)
Warm up:
Balance the following equation.
Write all possible mole rations.
___H2 (g) + ___O2 (g) ___ H2O (g)
Agenda:
Warm up
Check and review homework (9.1 section review)
Intro to pHet  pHet in pairs
4. Homework: Complete post lab questions for pHet and “Honors only” page.
OBJECTIVES
Students will
use balanced equations to write mole ratios
predict the amount of products produced
identify the limiting and excess reagents

7. Check and review homework Ideal Stoich Notes Practice worksheet
Consider the following balanced equation:
2 Fe (s) + 3 Cl2  2 FeCl3
If you reacted 5 moles of Fe and 8 moles of Cl2, how much FeCl3 could be produced?
Agenda:
Warm up
Check and review homework
Ideal Stoich Notes
Practice worksheet
5. Homework: Study for quiz next class
OBJECTIVES
Students will
use balanced equations to write mole ratios
predict the amount of products produced
identify the limiting and excess reagents

8. SUMMARIZER Consider the following balanced equation:
2 Fe (s) + 3 Cl2  2 FeCl3
If you reacted 5 moles of Fe and 8 moles of Cl2, how much FeCl3 could be produced?
Use the balanced equation to write your mole rations of Fe to FeCl3 and to Cl2 FeCl3
Convert your moles of each reactant to moles of product and compare the answers
2 mole Fe / 2 FeCl mole Cl2 / 2 FeCl3
5mol Fe
8mol Cl2
2 mole FeCl3
= 5 mole FeCl3
which reactant do you run out of first?
How much FeCl3 is produced?
2 mole Fe Fe
2 mole FeCl3
5 moles
= 5.33 mole FeCl3
3 mole Cl2
Do you have any excess reagent (leftovers)?
8.0 mol Cl2
- 7.5 mol Cl2 used
5 mole FeCl3
3 mole Cl2
= 7.5 mol Cl2 used
2 mole FeCl3
0.5 mol Cl2 left

9. SUMMARIZER Consider the following balanced equation:
2 Fe (s) + 3 Cl2  2 FeCl3
If you reacted 5 moles of Fe and 8 moles of Cl2, how much FeCl3 could be produced? c
Use the balanced equation to write your mole rations of Fe to FeCl3 and to Cl2 FeCl3
- Convert your moles of each reactant to moles of product and compare the answers
- What is your limiting reagent (which reactant do you run out of first?):
How much FeCl3 is produced?
- Do you have any excess reagent (leftovers)?
2 mole Fe / 2 FeCl mole Cl2 / 2 FeCl3
5mol Fe x (2 mole FeCl3 / 2 Fe) = 5 mole FeCl3
8mol Cl2 x (2 mole FeCl3 / 3 Cl2) = 5.33 mole FeCl3 Fe
5 moles
5 mole FeCl3 produced x (3 Cl2 / 2mole FeCl3) = 7.5 mol Cl2 used
8 mol Cl mol Cl2 used = 7.5 mol Cl2 left over

10. Warm up / Check and review homework (10 min) Collect pHet and HW Quiz
Review homework and identify questions
Agenda:
Warm up / Check and review homework (10 min)
Collect pHet and HW
Quiz
Homework: Read section 9.3 and complete limiting and excess reaction worksheet
Pages for BLUE BOOK:
reading
pg 316 Ex. Credit
pg 321 ques #17-21
Pages for ONLINE BOOK:
reading
pg 300 Ex. Credit
pg 306 ques #17-21
OBJECTIVES
Students will use balanced equations to write mole ratios and perform stoichiometric conversions.

11. Real Stoichiometry notes Homework: Practice problems #1-13
Consider the following balanced equation:
2 Mg (s) + O2  2 MgO
If you reacted 32g Mg and unlimited O2,
What is the theoretical yield in grams of MgO that could be produced?
Agenda:
Warm up
review homework
Real Stoichiometry notes
Homework: Practice problems #1-13
OBJECTIVES
Students will use balanced equations to write mole ratios and perform stoichiometric conversions.

12. Intro to lab and questions Lab work in groups
Get a copy of the lab and begin reading the introduction and procedure.
Agenda:
Warm up - review safety
Intro to lab and questions
Lab work in groups
Homework: Complete post lab questions and conclusions
OBJECTIVES
Students will calculate a theoretical yield and compare it to their actual yield measured in lab.

13. Intro to lab and questions Lab work in groups
Get a copy of the lab and begin reading the introduction and procedure.
Agenda:
Warm up - review safety
Intro to lab and questions
Lab work in groups
Homework: Complete post lab questions and conclusions
OBJECTIVES
Students will calculate a theoretical yield and compare it to their actual yield measured in lab.

14. Complete and turn in lab Review for quiz in pairs
Agenda:
Complete and turn in lab
Review for quiz in pairs
Homework: Study for quiz next class
OBJECTIVES
Students will calculate a theoretical yield and compare it to their actual yield measured in lab.

15. Agenda: Questions Quiz
When done – turn in and take an element card from the beaker and write down the element you selected. Save this information.
Begin research for element poster if you have time, we will work on these next class as well.
OBJECTIVES
Students will calculate a theoretical yield and compare it to their actual yield measured in lab.