In this video, Paul Anderson does a great job of providing a demonstration that suggests how chemical systems reach equilibrium.
Mr. Anderson also models how to equilibrium setups and solve for the value of the equilibrium constant, 'K'. Students were given a worksheet based on this video in Friday's class, along with a set of problems in which they will practice setting up equilibrium expressions.
This is a short topic, and the notes on Chemical Kinetics were also finished. Both items should be treated as homework, and completed as soon as possible.
Friday, February 28, 2020
Wednesday, February 26, 2020
HONORS: THERMOCHEMISTRY NOTES
Students:
Here are the Power Point Notes for Unit 6: Thermochemistry.
In this you will find discussions of phase changes (again!), heat transfer, the 1st and 2nd Laws of Thermodynamics, and problems to calculate energy (q) , specific heats and enthalpies of reaction:
Click here to download those notes.
Here are the Power Point Notes for Unit 6: Thermochemistry.
In this you will find discussions of phase changes (again!), heat transfer, the 1st and 2nd Laws of Thermodynamics, and problems to calculate energy (q) , specific heats and enthalpies of reaction:
Click here to download those notes.
Tuesday, February 25, 2020
VIDEO: ENTHALPY OF REACTIONS
The following video by Paul Anderson was introduced in class on Wednesday, Feb. 26th. It helpfully reviews some of the information already given in lecture regarding heat and the enthalpy of reactions. It also features a very handy, step-by-step demonstration of how to apply Hess's Law (a SUBTLE and advanced topic) to calculate enthalpies.
Students have an assignment based on that video, which is available HERE as a PDF file.
Students have an assignment based on that video, which is available HERE as a PDF file.
PERIODS 2-5: UNIT 6 RESOURCES
Period 2-5 Students: Rather than provide a Syllabus this semester, I have decided to periodically put up a post that simply lists major assignments and their due dates for given Units, similar to what is posted on the whiteboard in the front of class.
I feel comfortable doing this because my policy has always been to accept work for full credit during the unit regardless of what the due date is, giving students flexibility within the unit to complete work as they are able.
After the Unit Test for that Unit, students are given a grace period of one week to hand in any late work without penalty, and (barring serious medical or family emergencies requiring a parent contact) I don't accept that work after than point.
4th week of instruction:
Classwork: Introduction to Gas Laws (20 points) Bright blue in color. Review of Boyle's, Charles' and Gay-Lussac's Law.
Video Worksheet: Gases (20 points). White in color. Available on class blog, HERE or HERE.
Homework: Pressure v. Temperature (20 points) Dark blue in color. Review of Gay-Lussac's Law.
DPQ 7: Simple Gas Laws. (10 points)
5th week of instruction:
Classwork: Combination Gas Law (20 points) Lime green in color. P1V1/T1= P2V2/T2,
DPQ 8: Combination Gas Law (10 points)
Homework: Ideal Gas Law (20 points) Hot pink in color. PV=nRT
6th week of instruction: (short week)
DPQ 9: Ideal Gas Law (5 points)
Classwork: MORE Ideal Gas Law (20 points). White. Students may need to convert given values into units of (atm*L / mol*K) before solving.
Study Guide: Ideal Gases and Real Gases (20 points) To be completed before the Unit Test, used to complete student's notes inside their Composition Book, and handed in on the day of their Test.
To help students make SURE their Notes are complete, I am placing them on-line. Students can download the Power Point containing those notes HERE or by clicking on the graphic, below:
Should students misplace this Study Guide, I am making a PDF version of it available on-line, HERE. Students, make sure your notes are completed in your Comp Book on Thursday's test!
7th week of instruction: (short week)
Vinegar and Baking Soda Stoichiometry Lab (20 points): White handout, given on 2/17. Simplified version of lab to follow. Students estimate percent yield by mass by comparing difference between mass of vinegar, baking soda and desired products.
Ideal Gas Law Lab (20 points) White handout, more complex than previous. Combining stoichiometric limiting reactant setups, balancing equations, molar masses and application of ideal gas law using that period's actual atmospheric conditions. Randomly assigned different concentrations of acetic acid and different volumes of plastic bags, students must correctly predict the amount of carbon dioxide gas required to fill those volumes such that they create a "pillow" to catch a falling egg. Ideally, this lab has been rehearsed for at least one full class period and each student can successfully do the necessary calculations for themselves.
DPQ 10: "Egg Drop" style calculation using the Haber process instead of the reaction between acetic acid and sodium bicarbonate.
I feel comfortable doing this because my policy has always been to accept work for full credit during the unit regardless of what the due date is, giving students flexibility within the unit to complete work as they are able.
After the Unit Test for that Unit, students are given a grace period of one week to hand in any late work without penalty, and (barring serious medical or family emergencies requiring a parent contact) I don't accept that work after than point.
4th week of instruction:
Classwork: Introduction to Gas Laws (20 points) Bright blue in color. Review of Boyle's, Charles' and Gay-Lussac's Law.
Video Worksheet: Gases (20 points). White in color. Available on class blog, HERE or HERE.
Homework: Pressure v. Temperature (20 points) Dark blue in color. Review of Gay-Lussac's Law.
DPQ 7: Simple Gas Laws. (10 points)
5th week of instruction:
Classwork: Combination Gas Law (20 points) Lime green in color. P1V1/T1= P2V2/T2,
DPQ 8: Combination Gas Law (10 points)
Homework: Ideal Gas Law (20 points) Hot pink in color. PV=nRT
6th week of instruction: (short week)
DPQ 9: Ideal Gas Law (5 points)
Classwork: MORE Ideal Gas Law (20 points). White. Students may need to convert given values into units of (atm*L / mol*K) before solving.
Study Guide: Ideal Gases and Real Gases (20 points) To be completed before the Unit Test, used to complete student's notes inside their Composition Book, and handed in on the day of their Test.
To help students make SURE their Notes are complete, I am placing them on-line. Students can download the Power Point containing those notes HERE or by clicking on the graphic, below:
7th week of instruction: (short week)
Vinegar and Baking Soda Stoichiometry Lab (20 points): White handout, given on 2/17. Simplified version of lab to follow. Students estimate percent yield by mass by comparing difference between mass of vinegar, baking soda and desired products.
Ideal Gas Law Lab (20 points) White handout, more complex than previous. Combining stoichiometric limiting reactant setups, balancing equations, molar masses and application of ideal gas law using that period's actual atmospheric conditions. Randomly assigned different concentrations of acetic acid and different volumes of plastic bags, students must correctly predict the amount of carbon dioxide gas required to fill those volumes such that they create a "pillow" to catch a falling egg. Ideally, this lab has been rehearsed for at least one full class period and each student can successfully do the necessary calculations for themselves.
DPQ 10: "Egg Drop" style calculation using the Haber process instead of the reaction between acetic acid and sodium bicarbonate.
Tuesday, February 11, 2020
VIDEO: TEMPERATURE
Students: Here is the 'Temperature' video by Paul Anderson, as shown in class. Make sure you use colored pencils to complete the graph on pg. 3 of the handout based on the video.
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