Enjoy spring break in as many big and little ways as you can while staying safe everyone :)
If you have any questions about anything, email me! [email protected]
All work done during the COVID19 closure needs to be turned in on time using the following Assignment Tracker (link). If you post work over the break, you will be allowed to use that work on the real tests we'll take when we come back to school. If you don't post things on time, you don't get to use them on the exams later.
CLIMATE FILMS DUE MONDAY 3/30 to ASSIGNMENT TRACKER (THIS IS A GRADED ASSIGNMENT - Link to Rubric)
NEW - CH 9 Exam due by Tues 4/14 at 11:59 pm
New limiting reactant & percent yield videos & posted below in Helpful Files
To take the required, ungraded, but still good practice chapter 9 exam, click on this link (https://b.socrative.com/login/student/) and join the room for your class period. I've separated the class periods out into five rooms: TRINE1, TRINE2, TRINE4, TRINE5 & TRINE 7. A new ch 9 exam is waiting for you there. Take it once before 11:59 on Tuesday 4/14 when it closes and...
As always, if you have any questions, send an email.
- try your hardest
- use your study materials like you will when you take the real exam once we're back in school (keep them organized!)
- learn from it
- realize it's not as good or thorough as our normal tests
- relax because it's not graded
- wash your hands, go have a snack and do something kind for someone else when you're done :)
As always, if you have any questions, send an email.
Week 28- 3/30 to 4/3 - PLEASE READ CAREFULLY!
CH 7 & 8 Exam grades were entered with a weight of ZERO :)
WEEKLY GOALS - CHECK ASSIGNMENT TRACKER FOR EXACT DUE DATES!
- Keep staying safe & being kind
- NEW AGAIN...I just updated our crowd sourced science wonders collection (link), check it out & add your own!
- OLDIES BUT GOODIES...meditate, read, stretch, push-ups, cook - PLEASE stay away from public places and practice goof hygiene.
- Be smart & be brave, we’ll make it through this together by staying apart - for real.
- Last chance to complete a survey about our online learning (link). Thank you for those that have responded! I'll post a summary of responses after spring break. Short Version - so far so good, I'll keep the videos coming & most of us are catching up on sleep and reconnecting with family.
- CLIMATE FILMS DUE TO TRACKER BY 3/30!
- Take socrative ch 9 quiz by Tues 3/31 (link) in room TRINE3501
- Study Limiting Reactant PowerPoint. The textbook reading for this topic is complex. To be honest, our author doesn't approach the topic in the most direct way, so many students find his method of solving limiting reactant problems confusing. If you want to read section 9.7 anyway, feel free because it's correct chemistry, but done awkwardly. In a normal year, about 3-5% of students like the approach the author uses and the rest choose to do the way I teach it, which is shown in the powerpoint and the flipbook. It basically works likes this: (remember my grilled cheese example? 50 slices of bread, 30 slices of cheese --> 25 sandwiches)
- If you're given amounts of more than one reactant, chances are that one of those reactants is going to run out (bread) before the other (cheese). The way to figure out which one is going to run out is to calculate how much product can be made by using up all each reactant. For example, using up 50 slices of bread makes 25 sandwiches. Using up 30 slices of cheese makes 30 sandwiches. Therefore, bread is the limiting reactant since it runs out after the twenty-fifth sandwich. No way can you make 30 if there's only enough bread for 25! This same simple thinking applies to stoich problems, but you'll be calculating amounts in grams or moles not slices and sandwiches.
- When given starting amounts of two reactants, use your stoich skills to calculate how much product each of them makes. Whichever reactant leads to less product is the limiting and the other reactant will have excess left over. PLEASE LOOK AT THE POWERPOINT!
- Post your completed Chalk Lab to the assignment tracker (you can't do the experiment, but you will analyze my data)
- Read 9.6 & 9.8
- Ch 9 HW #'s 29,30,34ac,35ac,36ac,38, 40-42,44,46,47 (Remember, if you don't know how to do one, write down the question word for word & I'll post videos of some of the tougher ones on Friday)
- Finish stoich flipbook and post link to solutions for pages 6 & 7 in tracker
- Check out our Ch 9 Greatest Hits of Student Questions google doc - we've been getting a lot of good questions via email and want to share the answers with everyone. Look here (link) for the answer to your question and others you might not have even thought to ask! (HINT HINT... I've answered a few questions on here and sincere thanks to others who have posted answers too, but this should be a MUCH MUCH MUCH more active part of our online learning strategy than it has been so far)
- Take the chapter 9 socrative exam by Tues 4/14 at 11:59 pm
- Watch three new videos Limiting Reactant Demo, Stoich mixed review #17 (Part 1 & 2)
MUST POST ITEMS - students need to post a link to their work for these tasks on the assignment tracker (link)
- Ch 9 HW #'s 29,30,34ac,35ac,36ac,38, 40-42,44,46,47
- Finish stoich flipbook and post link to solutions for pages 6 & 7 in tracker
- Post your completed Chalk Lab to the assignment tracker (you can't do the experiment, but you will analyze my data)
Helpful Files -
Flipbook Page 6 & 7 (link)
Link to Limiting Reactant Presentation (link)
Chalk Lab (you can't do the experiment, but you will analyze my data) (link)
Link to Important Stoich Mixed Review Presentation (link)
copy_of_solubility_rules__1_.pdf |
activity_series.pdf |
Link to Stoich Food Analogy Slide Presentation for Period 4 (link)
Link Intro to Stoich Slides Presentation (link)
Link to Stoich Flipbook Answers pgs 1-5 (link)
Chapter 9 "I CANs"...
...represent and/or visualize chemical rxns from a math, micro and macro point of view
...use stoichiometry to convert moles &/or grams of one reactant &/or product into moles &/or grams of different reactants &/or products
...apply stoichiometric conversions to predict which reactant will be the limiting and which will be the excess when given starting amounts of multiple reactants
...determine the percent yield of a reaction
...represent and/or visualize chemical rxns from a math, micro and macro point of view
...use stoichiometry to convert moles &/or grams of one reactant &/or product into moles &/or grams of different reactants &/or products
...apply stoichiometric conversions to predict which reactant will be the limiting and which will be the excess when given starting amounts of multiple reactants
...determine the percent yield of a reaction
Limiting Reactant Demo
Mixed Stoich Review Video #17 Part 2 - Percent Yield
Mixed Stoich Review Video #12a - Gram to Mole
You Tube Review Video #1 - Intro to Stoichiometry
You Tube Review Video #3 - How to Make a Stoich Flipbook
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Mixed Stoich Review Video #17 Part 1 - Limiting Reactants
Mixed Stoich Review Video #9a -Mole to Mole
Mixed Stoich Review Video #10b - Mole to Gram
Mixed Stoich Review Video #13c - Gram to Gram
You Tube Review Video #13c - Stoich Food Analogy Assignment
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