Chem 11 Unit 3 Stoichiometry

PLEASE NOTE!  The dates are TOTALLY WRONG and do not match our November 2021 timeline. But the content is good!

Monday December 17 / Tuesday December 18: Worksheets to practice balancing equations:    3.1 Chem 11  3.2 Chem 11   3.3 Chem 11    ANSWER KEYS:  KEY Chem 11 3.1   KEY Chem 11 3.2   Key Chem 11 3.3

Wednesday December 19 / Thursday December 19:  Mrs Toombs will do demos to help you remember the types of reactions. We will keep track of each sample reaction on the front board, and you will end up with a reaction types “cheat sheet” / concept map that you can use to work through some practice questions in January, 2020.

JANUARY 6 and 7 2020 we will review Reaction Types:

Each student should use the “cheat sheet” created in December.

 

Monday January 6 / Tuesday January 7: Chem 11 Decomp reaction types  and Chem 11 Decomposition reaction types ANSWER KEY

We will be completing the A voyage through equations worksheet package in class January 6, 7, 8, 9.  Use class time wisely, so that you don’t have to work on this for HW! Voyage through eqns KEY p1 and  Voyage through eqns KEY p2

Introductory balancing notes from December 17 / 18:

https://twitter.com/ToombsETeaches/status/552518877536874496

Some sample balanced equations:

https://twitter.com/ToombsETeaches/status/552519115051917313

Some balanced “REDOX” equations:

https://twitter.com/ToombsETeaches/status/552519078829895681

Some trickier equations to balance:

https://twitter.com/ToombsETeaches/status/552519095879749634

Wednesday January 8 / Thursday January 9:  After we have completed the VOYAGE THROUGH EQUATIONS series of worksheets, we will review: Balancing redox eqns PLUS KEY  as an introduction to Single Replacement reactions.

Fri Jan 10 / Mon Jan 13 Taking a closer look at Single Replacement reactions.  “The activity series” to determine when a Single Replacement will actually produce products: Chem 11 Virtual lab Activity Series then follow with a practice worksheet and reference table. Activity Series Single Repl Wksht and Key

http://intro.chem.okstate.edu/1515F01/Laboratory/ActivityofMetals/home.html

 

Tues Jan 14 / Wed Jan 15:  open book “quiz” on predicting products, classifying reactions and balancing equations. (covering Everything listed on this webpage so far)  BLOCK 5 will write this quiz on FRIDAY JANUARY 17.  It will take 55 minutes.

Thurs Jan 16 / Fri Jan 17 :A short notes package on EXOTHERMIC and ENDOTHERMIC REACTIONS Today we start the VERY IMPORTANT TOPIC of “STOICHIOMETRY”  An Introduction to STOICHIOMETRY (filled in answer key) and a worksheet to practice over the weekend: Equations and Stoichiometry Worksheet and Answer key and 3.5 Chem 11 STOICH Mole Reactions and KEY

Mon Jan 20 / Tues Jan 21:  LAB EXPERIMENT:  Full Formal Write-up (as detailed on the lab handout) is due on Mon Jan 27 / Tues Jan 28  Mg HCl lab Chem 11

Wed Jan 22 / Thurs Jan 23:  Unit 2 mole test upgrades during class today: for those who spoke to Mrs. Toombs by end of day last Friday.

The rest of the students are working on the Lab report, and the Stoichiometry Intro Package worksheets.

Fri Jan 24  Block 1:  Time to work on your lab report as well as a new WORKSHEET: Stoichiometry More Practice INCL ANS KEY  

LAB REPORT due on Mon Jan 27 / Tues Jan 28  

Mon Jan 27 Block 5:  Tutorial during class with WORKSHEET TIME (to get more Stoichiometry practice with teacher support), as well as a new worksheet: Stoichiometry More Practice INCL ANS KEY  

Tues Jan 28 / Wed Jan 29:  A Practice quiz.

Thurs Jan 30 Block 1 / Fri Jan 31 Block 5: STOICHIOMETRY QUIZ 

A video tutorial on Mole Stoichiometry (how to calculate the ratios):

A typical (beginning level) Stoichiometry Calculation:

A challenging Stoichiometry question:

 

Thursday January 30:  After our STOICHIOMETRY QUIZ…The STOICHIOMETRY of Limiting and Excess Reagents!!! Intro To Excess Stoich and Excess Stoich INTRO ANS key.   In class practice time so that you can get help from Mrs. Toombs.  Use your class time wisely!

TUTORIAL VIDEO for LIMITING and EXCESS STOICHIOMETRY:

Link to YouTube movie: http://www.youtube.com/watch?v=htzcgkjURKc  Made with Explain Everything

Another tutorial video, to ensure you understand this limiting and excess stoichiometry:

Link to this video: https://youtu.be/wyyWaoMpEXY  Made on Explain Everything

 

Mon Feb 3 / Tues Feb 4:  Mrs. Toombs will demonstrate two more limiting and excess Stoichiometry problems on the front board. Then you will complete the INTRO to Lim / XS stoich worksheet (4 questions only) that we started on Thurs / Fri:   Intro To Excess Stoich and Excess Stoich INTRO ANS key

Wed Feb 5 / Thurs Feb 6:  A Limiting / Excess Stoichiometry worksheet that Mrs.Toombs will collect so that we can move on to a brand new topic on Mon / Tues.

Over the next 5 days you should work on: Another look at Limiting and Excess Stoichiometry 2019

Fri Feb 7:  Pro D DAY!

Mon Feb 10 / Tues Feb 11:  Continuing our Stoichiometry practice with Percent and Theoretical Yield.  Here is the question I demonstrated on the front board: Theoretical and Percent Yield Lim Xs Stoich And 3 questions to practice for HW (although you had 45 minutes in class to get them all done!):  Percent and Theoretical Yield with KEY 

TUTORIAL VIDEO: Mole Stoichiometry with Theoretical and Percent Yield NOTE! This also involves Limiting and Excess Stoichiometry – so watch this video if you still need help on this topic too!

 

Wed Feb 12, Thurs, Feb 13, Fri Feb 14 (all short 1 hour classes):

 The final topic of Unit 3Percent composition, Empirical Formulas, and Molecular Formulas. Notes and Worksheet package: Emp Forms notes and worksheet package and Answer key to attached worksheets:  Percent Comp Emp Formulas KEY  and also:  Emp Form Perc Comp (This second document includes an additional worksheet, and a set of questions entitled Empirical formulas from chemical reactions as well as the answer keys)

TUTORIAL VIDEO: How to calculate Percent Composition

TUTORIAL VIDEO: How to find the empirical formula

Please Note!  In the above video…that is clearly Manganese (II) oxalate.  I will have to correct that video.  YIKES.

TUTORIAL VIDEO: How to find the Empirical Formula (video #2)

TUTORIAL VIDEO: How to find empirical and molecular formulas

TUTORIAL VIDEO: How to find Molecular Formulas

 

Mon Feb 17:  HOLIDAY!

 

Tues Feb 18 / Wed Feb 19: One final type of question to learn today and then the rest of class to start on TEST OUTLINE / REVIEW PACKAGE / WORK DAY / TUTORIAL

TUTORIAL VIDEO: How to Find Empirical Formulas from Chemical Reactions

 

 

Thurs Feb 20/  Fri Feb 21: TEST OUTLINE / REVIEW PACKAGE / WORK DAY / TUTORIAL

Unit 3 Chem 11 practice test 2019

Mon Feb 24 (block 5)/  Tues Feb 25 (block 1): Unit 3 Stoichiometry TEST – The last mark for the 2nd report card.