Items Due During Week 7:
Section L1: Due in Recitation on Monday, November 2 at 1:10 PM in AC 2501:
Section L2: Due in Recitation on Tuesday, November 3 at 8:30 AM in AC 2607:
Section L3: Due in Recitation on Wednesday, November 4 at 1:10 PM in AC 2501:
- The "Lewis Structures" lab
- Problem
Set #5 (self corrected using the recitation video)
- We will take Seminar Self Quiz #5 and Quiz #5
- Bring a printed copy of the Valence Bond and Molecular Orbital Theory to recitation
- Section L3 only: If you have not done so already, make sure to turn in the "Exam II Replacement Form" during recitation.
- Heads up: Next week Wednesday is Veterans Day, and Mt. Hood Community College is closed. We will not have lab next week Wednesday, but you do need to take Midterm Exam II by Friday, November 13 at your make up time. Contact me if you are unsure when you will take Midterm Exam II.
Section L4: Due in Recitation on Friday, November 6 at 1:10 PM in AC 2501:
All Sections:
- Start studying the material in Chapter 5. YouTube Lecture Videos
- For Midterm Exam I, the high score was a wonderful 98 out of 100 possible points! :) (several students had a 98, fabulous!) The low score was a score 'less than 98'. The average Exam I score was 69.9. You should have received your midterm back in recitation this week.
- Speaking of midterms.... next week (Week 8) will be Midterm Exam II week (over chapters 4 and 5), so start getting ready now!
- I highly recommend you get a copy of the Geometry and Polarity Guide and learn how to apply it with your Lewis structures.
- You can check your grades for CH 221 using this link.
- This upcoming Friday (November 6) is the last day to drop (or change the grade status of) individual classes at Mt. Hood Community College. You can find more information using this link.
- Veterans Day is commemorated at MHCC on Wednesday, November 11, and Mt. Hood Community College will be closed. Section L1 will not have a lecture at 9 AM on Wednesday, November 11, and section L3 will not have lab on this day either. Contact me if you have any questions about Veterans Day.
This week we investigate the reasoning used to justify the Lewis structure and VSEPR, i.e. the theories of how molecules form bonds. We will explore the two relevant theories, namely Valence Bond (VB) Theory and Molecular Orbital (MO) Theory, and they both offer benefits to modern chemists (as well as some drawbacks.) Please contact me if you have any questions, ok?
Here's what is happening in week 7 of CH 221:
- Special Note: Wednesday, November 11 is Veterans Day, and Mt. Hood Community College will be closed. Section L3 must communicate with the instructor regarding a midterm make up time... more information coming soon.
- Explore the material in Chapter 5. There are several tools to help you learn the material.... they include:
- Due: Problem Set #5 which covers problems from Chapter 5.
- This Week: Seminar Self Quiz #5 and the (actual) Quiz #5
- All quizzes (Seminar Self Quizzes and actual Quizzes, as well as midterm exams and finals) are closed book / no notes allowed. You cannot use a cell phone or computer; you can have a dedicated calculator and a periodic table (which I will provide) only.
- First, take Seminar Self Quiz #5. You will have 20-30 minutes to complete the quiz, and afterwards we will self correct the Quiz as a class before turning it in. If you are late, or do not attend recitation for any reason, your score will be a zero on the Seminar Self Quiz.
- After taking the Seminar Self Quiz, you will take the actual Quiz #5. Quiz #4 will take about 30 minutes and consist of several 'show your work' questions. Turn in the quiz when done (I will pass back any corrected work I have for you at this time.)
- Sample Quiz #5 (answers at the end) might be useful to help you prepare and study.
- Due: The Lewis Structures Lab
- Bring the completed lab with you to recitation
- Start: The Valence Bond and Molecular Orbital Theory Lab.
Here's a preview of what's going to be happening during Week #8:
- Special Note: Wednesday, November 11 is Veterans Day, and Mt. Hood Community College will be closed. Section L1 will not have a 9 AM lecture on Wednesday November 11. Section L3 must communicate with the instructor regarding a midterm make up time... contact me if you are unsure when you midterm make up time will be.
- Midterm Exam II
-
This midterm exam covers problem sets #4 and #5 (essentially Chapters 4 and 5.)
- The midterm will have 12 multiple choice questions and four short answer questions. You will not need a scantron to complete the exam, but you will need to mark your answers clearly on the exam itself. You will have 90 minutes to complete the midterm exam.
- The midterm exam will be closed book; no notes are allowed. You will be able to use your calculator and a periodic table (which I will provide.)
- The first and last pages of the exam deserve some comment. The first page of the midterm will include an integrity statement that you will be required to sign. Signing the integrity statement implies that you have not received (and will not be giving) any information on the midterm exam to others that might imply cheating; a failure to sign the integrity statement grants an automatic score of zero, so make sure the first thing you do is to sign the statement. The last page of the midterm exam will be a scoring page which will be filled out by the instructor when the exam has been graded; you do not need to complete anything on this page. An example of the integrity statement and grading sheet (for Exam I) can be found here: link
- Midterm Exam II details by section of CH 221:
- Section L1 will take the midterm on Monday, November 9 at 1:10 PM in AC 2501.
- Section L2 will take the midterm on Tuesday, November 10 at 8:30 AM in AC 2607.
- Section L3 will take the midterm at a pre-arranged make up time. Section L3 students shold contact me if unsure when to take the second midterm exam.
- Section L4 will take the midterm on Friday, November 13 at 1:10 PM in AC 2501.
- To Study and Prepare for Midterm Exam II:
- Watch the Complete Lecture of an Exam Review for the second Midterm Exam here: Midterm Exam II Review
- Lecture videos for the Exam Review for the second Midterm Exam will be available on YouTube and as a Podcast.
- A sample exam is available on the Chemistry
221 website under Quizzes
and Exams.
Also happening during Week 8 in CH 221:
- Due: The Exam Prep II worksheet.
- This week we will not have a problem set, seminar self quiz or regular quiz, but you will need to complete the Exam Prep II worksheet.
- The Exam Prep II worksheet consists of several problems followed by the answer; your goal will be to 'show your work' (in detailed steps) how to go from the question to the final answer. If you have questions on how to do this, you can reach out for assistance to the LSC/AVID center or the instructor.
- The Exam Prep II worksheet will be due at the time of your midterm exam I.
- Due: The Valence Bond and Molecular Orbital Theory Lab.
- Bring the completed lab with you to recitation
- Start: The Empirical Formula Lab.
- Bring a printed copy of the Empirical Formula lab with you to class. Bring your safety goggles - they are required this week!
- Section L3 will complete a make up version of the Empirical Formula lab this week. Look for more information in your email box soon.
- Here is a video which shows what the lab will be like, offer hints, etc.
- Heads up: Next week is the week of Class Presentations on your reserved element. You will give your (less than five minute) presentation and turn in the final Class Presentation paper. Bring a copy of the Post Class Presentation Assignment with you to your Class Presentation date (you can fill it out during the other presentations.) More information can be found using this link.
