Before class on Feb. 9

Sorry I did not post these videos earlier.  Our learning objectives for Feb. 9 are:

–Define and use the Bronsted concept of acids and bases.

–Recognize common acids and bases and write balanced equations for their ionization in water.

–Explain what it means to be amphiprotic

–Recognize a Bronsted acid or base in a reaction, and identify the conjugate partner of each.

–Use the water ionization constant, Kw.

–Use the pH concept.

 

Before class on Feb. 9

  • please watch the following 3 videos (21 min, 21 min, 11 min);
  • complete the notes;
  • and make a comment.

https://www.youtube.com/watch?v=sGzqjeESuPE

https://www.youtube.com/watch?v=GnNfhPk5z04

https://www.youtube.com/watch?v=h6Y3bw_MoY8

Before class on Feb. 7

Our learning objectives for Feb. 7 are to be able to:

  • explain Le Chatelier’s principle;
  • identify potential disturbances to a system at equilibrium; and
  • predict, using Le Chatelier’s principle, the effect of a disturbance on a chemical equilibrium.

Before class on Feb. 7:

  • please watch the video below (22 min.)
  • complete the notes
  • and make a comment.

https://www.youtube.com/watch?v=laawq0LkZZc

 

 

 

Before Class on Feb. 3

Our learning objectives for our next class are to:

  • be able to predict how a change in a system will affect the equilibrium concentrations, based on K;
  • Use K to predict equilibrium concentrations when only given initial concentrations.

Before class on Feb. 3:

  • Please watch the 2 videos below (7 min, 25 min)
  • Complete the notes
  • Make a comment.

 

 

Before Monday, Jan 30

Before Monday, Jan. 30,

  • Please watch the 5 videos below.
  • Follow along and take notes on the blank notes
  • Make a comment.

7.1 a Equilibrium and equilibrium expressions

7.2 Equilibrium can be reached from either direction

7.1 c– This video is edited into 2 parts. It may end abruptly.  The next part is in the following video.

7.1 c Part 2 — This is the second part of the above video. It may start abrubptly.

 

Before Class on Tues., Jan. 24

Before class on Tuesday, Jan. 24, please finish the HW worksheets I handed out on Friday.  We will finish discussing Kinetics on Tuesday, and work on the HW problems associated with the last learning objectives. We will also work on a problem that integrates Kinetics with some other things we learned.  I believe the units that are displayed in the tables may be confusing to you.  I am attaching a sheet with some notes to make them more clear.Kinetics Worksheet with unit explanations

I am postponing starting Equilibrium until after the Kinetics Quiz, so there are no videos to watch.

I have graded the Test on Gases and Properties of Solids, Solutions, and Liquids.  There is no retest for this Test.  If you want to improve your grade, you may do test corrections during your Pride or after school this week.  If you complete test corrections for all incorrect answers, you can earn back half the points lost.

REVIEW AND STUDY GUIDE ANSWERS FOR JAN 9 QUIZ

studyguide-key-review-unit-6-and-7  Here are the answers to the Study Guide (with the exception of 3 of the ones near the end. I will post those answers later as I have to rewrite them).  While my answers may not be in complete sentences, you will be expected to write in complete sentences on the test.

For the quiz, make sure you look closely at problem 2, 3, 4, 10, 12,13 (the problem with acetylene)as well as the problems toward the end which explain properties by discussing intermolecular forces.  Make sure to review the properties of the different types of solids, as well as the names, definitions, and strengths of the intermolecular forces.