Monthly Archives: October 2016

Le Chatelier`s Principle

  1.  I will be able to explain shifts in the equilibrium using Le Chatelier`s Principle.  I will be able to use collision theory and changes in the rates to explain how the equilibrium shifts.
  2. Do: Worksheet.  See copy here:  le-chateliers-principle-worksheet-grid
  3. Do:  Prelab for the Rainbow Lab.  In groups of 3-4, plan how you will make the colors of the rainbow (except purple).  You can which equilibrium systems to use and choose between the 5 stations.  Decide what your group will add to shift the equilibrium.  See handout here:  rainbow-lab-inquiry

End of Unit I Analysis

  1.  Go over Unit I test and fill in the test analysis.
  2. Fill in the Unit I Overall analysis
  3. Intro to Unit II: Equilibrium.  I will be able to describe the characteristics of equilibrium
  4. Demo:  NO2 tubes
  5. Do: Read sections 1 and 2.  Do questions in the learning log.

Lab 2D – Separating Mixtures Using Paper Chromatography

  1.  Do:  Lab 2D – Separating Mixtures Using Paper Chromatography.  Measure your d1 and d2 values.  Keep the chromatograph papers (either one person keeps them all or share them between each group member).  You will share your results with the class next day.
  2. Review Worksheet – go over answers
  3. Heads up!  We are finished Unit III and there will be a test/assessment coming up soon!
  4. Answers to the Worksheet package on Matter, Physical and Chemical Changes, and Separating Mixtures are posted here:  chemistry-worksheet-matter-1chemistry-worksheet-matter-1-page-2elements-compounds-and-mixturesphysical-and-chemical-changesclassification-of-matter-and-changes

Intro to Le Chatelier’s Principle

  1.  Do Kinetics Test Analysis and Unit Analysis.  Keep your assignments, quizzes, tests, and analyses in your folder.  We will discuss your analyses together in the classes to come.
  2. Go over Equilibrium #1 Worksheet.
  3. I will be able to explain HOW/WHY the equilibrium shifts
  4. Video:

5.  Demo:  NO2 tubes

6.  Finish reading sections 1 and 7 and do practice questions from those sections.  See ch15 “cookies” here:  ch15-cookies_12

Unit I Test

Today, students wrote the Unit I Test.

Please make sure you are up to date with all your assignments, projects, quizzes, etc…so far this term.  If you did not pass any of them, you have the opportunity to rewrite them (as part of your “I”/”Incomplete” standing)

Quiz and Review

  1.  Quiz on Reaction Mechanisms and Energy in Reactions
  2. Last class for review before the unit test.  Unit I test on Thurs/Fri.  Do the Kinetics Practice Test.  See document here:  kinetics-practice-test-1
  3. Unit I Test Outline:  Major topics:  how to measure rate; factors that affect reaction rate; collision theory; energy in reactions; reaction mechanisms.  Format:  about 30 mc questions (bring a pencil, and scientific calculator); written section similar to quiz

Intro to Equilibrium

  1. Sorry, I was sick today! 🙁     Hopefully, everything went well with the TOC.
  2.  Begin reading ch15.  I will start with sections 15.6 and 15.7 on Le Chatelier’s Principle.  Begin reading, taking notes, and doing questions from these 2 sections.  Also, do Equilibrium #1 worksheet.  See handouts here:  ch15-chemical-equilibrium-learning-outcomes-learning-log-2016 and equilibrium-worksheets and class notes:  equilibrium
  3. Hopefully, you have collected all your assignments so far this term and have compiled them into your folder.  If you received the ch14 test analysis, I will go over how to fill it out next class.  If you received the ch14 unit analysis, I will also go over that with you next class.  In the meantime, just keep all your documents together.

Separating Mixtures

  1.  Brainstorm: Separating Mixtures.  Read p.53 parts A,B,C and fill in the graphic organizer with descriptions of hand separation, filtration, and evaporation.
  2. Demo: how to filter a heterogeneous mixture
  3. Lab activity:  how can you separate salt, sand and iron filings?
  4. Reminder for Lab 2A – hand it into the folder!
  5. Do:  Prereading of “distillation” for next class;  Finish the worksheet package you received last class
  6. Reminder:  post your answers (taking a digital photo-physical or chemical change??)
  7. Reminder:  if you want to be re-evaluated for Unit II, make sure you have completed the Unit II Test Analysis, done test corrections, and have done practice questions on the learning outcome you want to retest.  Come Wed/Thurs after school with a pencil and scientific calculator.