Skyline College A.J. Bates Professor of Chemistry

     Chemistry 220 - General Chemistry 2 - Spring 2016

Chem 210 - General Chemistry 1Chem 235-238 - Organic Chemistry 2 Chem 220 - Lab Manual & Extra Practice ProblemsScience Lecture Series
Gay Straight Alliance

Announcements & Important Course Information

Friday, June 3

  • Thank you for a rewarding semester. Have a great summer, and good luck with all of your academic and personal endeavors.


Tuesday, May 31

  • Grades will likely be posted on Friday, June 3 by the end of the day.


Friday, May 20

  • I will be holding my normal office hours today from 12:15-1:15 pm and
    my office hours for Monday, May 23 are 4:45-5:45 pm.
  • I will also be available by email periodically to answer questions throughout the weekend and on Monday & Tuesday.


Thursday, May 19

  • Final Exam Review Topics Guide
  • The Final Exam Review Sessions will be at:
    • 10:30 am in the AA lab section and
    • 2:10 pm in the AB lab section
    • All students are welcome to attend either or both review sessions.
    • The sessions will have the same focus and both will have an open time for questions.


Wednesday, May 18

  • Electrochemistry worksheet answer keys are posted.


Monday, May 9

  • Office Hours: My office hours for the end-of-the semester may change on a few days due to end-of-semester meetings. Please see the Calendar for updates. Note that today's office hours will be from 12:15-1:15 pm.


Saturday, May 7

  • Reminder: Exam #4 is on Wednesday, May 11 in lecture. It will focus on the following:
    • Di-/tri-protic acid-base titrations and buffer systems (Chapter 19)
    • Solubility, Ksp, and Kf (Chapter 19)
    • Thermodynamics (Chapter 20)
  • Reminder: There is a Sapling Learning Problem Set due Tuesday by 9pm.
  • Additional worksheet answer keys are posted.


Monday, May 2


Monday, April 25


Friday, April 22

  • A new Sapling Problem Set was posted yesterday morning. It is due next Saturday, April 30 at 9pm.


Wednesday, April 13

  • I have NOT been instructed to report for jury duty on Thursday, April 14, so please plan for normal lab times and office hours tomorrow.


Tuesday, April 12

  • I have NOT been instructed to report for jury duty on Wednesday, April 13, so please plan for regular class times and office hours tomorrow.


Monday, April 11

  • I have NOT been instructed to report for jury duty on Tuesday, April 12, so please plan for normal lab times and office hours tomorrow.
  • For the Sapling Problem Set #8 - Questions 14 & 15 will not be covered until Exam #4.You are not required to do them. One point will be added to your Sapling score for the PS to account for the two problems. If you choose to do them and get them correct, you will still have the 1 point added to your Sapling score.


Sunday, April 10

  • I have NOT been instructed to report for jury duty on Monday, April 11, so please plan for lecture as scheduled.


Friday, April 8

  • I have NOT been instructed to report for jury duty on Monday, April 11, so please plan for lecture as scheduled.
  • I am on-call for jury service next week. If I am required to report to the courthouse and do not have a substitute for a given day, I will post an announcement on the course website and send out an email announcement to your accounts by ~8pm the evening before.
  • Reminder: Exam #3 is next Friday, April 15 during lecture.
    • I have arranged for a proctor for the exam in the event that I required to report for jury service on the day of the exam, so it will go on as scheduled.


Tuesday, April 5

  • I will be back on campus for lab and office hours at the scheduled times today.


Sunday, April 3

  • I am not feeling well tonight and have decided to cancel classes and office hours for tomorrow, Monday, April 4. I hope to be well enough to return on Tuesday, and will post an update here late in the day tomorrow.


Sunday, March 27

  • Lab Test #1
    • Reminder: Lab Test #1 will be held on Thursday, April 7
    • Lab Test #1 will cover Experiments #1-7, and General Lab Information / Procedures / Safety.
      • The experiment focus will be on interpreting data or results similar to experiments performed in the course.
      • See the LABORATORY page for Lab Test #1 Practice materials, including the newly posted Spring 2015 Lab Test #1.
    • Part of the lab session on April 5 will be for the lab test review - this will be an in-class opportunity to ask questions on the prvious-semester lab tests, experiments, etc.
  • On Tuesday, April 5, we will perform Experiment #8: Buffer Solutions. We have covered all of the material required to complete the Parts 1-2 study assignment and the post-lab questions. If you would like to work ahead over the break, I recommend completing these.
    • System 3 Prelab Requirements - prepare in the lab notebook.
      • PURPOSE & Buffer System REACTION
      • DATA TABLE
    • Lab Handout
  • The course calendar has been updated through the two weeks following Spring Break.
  • Be sure to note the Sapling Problem Sets and Extra Practice problems that were previously posted.
  • Exam #3 will be on Friday, April 15 and will cover Acid-Base Chemistry including Buffers & pH titrations. The textbook chapters covered directly will be Chapters 18 and Sections 19.1-19.2.
  • There are many new answer keys posted on the LECTURE page.


Friday, March 11

  • Tomorrow is the EYH Conference!
    • If you are signed up as a Go'fer, please plan to attend an informational meeting today starting at 2pm in room 7-106
    • Tomorrow: Please meet in the lobby of Building 6 (near the bookstore) / 6-102 at 7am!
    • If you cannot help out tomorrow, but have some time today - please come to room 7-106 at 1:30 pm today
    • You will earn a small number of bonus point in the class for your participation.

  • As posted on my calendar, I will not be holding office hours today, but will be adding some extra class-specific office hours / review sessions for next week - please see the calendar!

  • Experiment #4 Notes:
    • If you did not enter your Day 2 & Day 16 Q values (or other days if you are off-schedule) into the class data spreadsheet, please complete the calculations for those values and be prepared to enter them at the start of lab on Tuesday, March 15.
    • If you did not get the data of another student on that day, please share data at that time.
    • No more than 15 minutes will be allotted to these activities (that should be more than enough), so all Q calculations and data organization must be completed before class!
    • The completed report will be due on Tuesday, March 22 at the start of lab.

  • Lab Exam #1 is postponed to Thursday, April 7 (the week following Spring Break).
    • Please plan accordingly!
    • Please note that we will still be doing a required lab activity on the original date for the lab exam.


Wednesday, March 9

  • I am feeling better this afternoon and do expect to return to campus tomorrow for the regular schedule.
  • I have posted updates to the class calendar, extra practice worksheet answer keys on the lecture page, and updates to upcoming experiments on the lab manual page.
  • Some notes about lab tomorrow:
    • Nothing is specifically due tomorrow in lab.
    • However, I do recommend that you start work on the Equilibrium 5 & 6 worksheets if you have not already, as we will be taking some time to discuss those problems during lab.
    • I recommend that you bring your plot/calculations for Expt. 5 to lab tomorrow, as you will have an opportunity to ask questions on that experiment.
    • We will perform the Day 16 Titration for Experiment #4 in lab tomorrow.


Tuesday, March 8

  • I am still not feeling well and will not be holding classes or office hours tomorrow,
    Wednesday, March 9.
  • I do plan to post some updates on the website tomorrow.
  • From an email to the class:
    • I woke up feeling ill and have decided to cancel classes for today, Tuesday March 8.
      • The lab schedule for today and Thursday will simply be bumped back by one lab session, including due dates.
      • And as a reminder, next Wednesday, March 16 is Exam #2.


Sunday, February 28

  • I am not feeling well today and have decided to cancel classes for tomorrow, Monday, February 29. CHEM 220 lecture will not meet.
  • A new Sapling Learning problem set is now posted.


Friday, February 26

  • Equilibrium worksheets 1-3 answer keys are now posted.


Tuesday, February 23


Friday, February 19

  • A new Sapling problem set is posted.


Thursday, February 11


Friday, February 5

  • Please note that Sunday, February 7 is the LAST DAY to DROP
    a semester-length course with NO RECORD appearing on your transcript.
    • This is a correction from the printed Schedule of Classes and from my syllabus.


Thursday, February 4

  • PS #3 is posted on Sapling Learning.


Monday, February 1

  • For lab tomrrow, following the quiz we will discuss the Kinetics 1 FOLLOW-UP worksheet. The link to Kinetics 1, its answer key, and the Follow-up are below:
  • Please see CALENDAR for items due and all of the activities for tomorrow's lab session.


Wednesday, January 27

  • Reminder: A copy of the course text and solutions guide are on reserve in the library.


January 19, 2016

  • Welcome to CHEM 220 - General Chemistry 2 for Science Majors. I am looking forward to a productive, challenging, and rewarding semester.  
  • Our first CHEM 220 class meeting will be LECTURE on January 20 at 10:10 am in 4-148.
    Note that this is a room change from the original schedule.

  • Our first LABORATORY sessions will be on Thursday, January 21 at 9:20 am (AA section) and 2:10 pm (AB section) in 7-341.

    • It is very important that you attend your first lab session and continue to attend the lab in order to maintain your registration and/or waitlist priority. In the first lab, we will discuss the lab portion of the syllabus, enrollment, and cover important safety information that is required to participate in the laboratory.

  • Sign up for the Sapling Learning Online Homework System:
    • Follow the above link.
    • If you have an account, log in. If you do not have an account, create an account.
    • Please enter your first and last names in the profile as they appear on your official Skyline record. If you go by a different name or a nickname, please put it in parentheses after your first name.
    • From the expanding menus, select Skyline College, General Chemistry, Semester 2.
    • Then select Skyline College - CHEM 220 - Spring 16 - Bates.
    • When you register for the course on the system, you may select to use it for the first two weeks of the semester for free. You must then pay to continue to have access.
    • The first Sapling Learning problem set and an introductory BONUS problem set are already posted.
  • The course text, Chemistry, 7th ed. by Martin Silberberg,is available as a custom edition in the Skyline College Bookstore. If you are purchasing new, this is a much less expensive option than buying the full text book. However, you are also welcome to use the 5th or 6th edition of the textbook for the course. You may be able to find those online at a much lower price. It is very important that you have a copy of the textbook (in any of these 3 editions). The readings and assigned problems from the text are essential to the course.
  • Please begin the reading and book problems (see LECTURE page) for Chapter 16 on Reaction Kinetics.
  • The following worksheets are from the General Chemistry 1 course and cover topics that will be critical in all of our work this semester - Stoichiometry and Solutions. I recommend that you work these problems as review. A quiz early in the semester will cover these topics and some of our initial work in Kinetics.

Academic Integrity

  • Academic integrity is an important issue in all academic settings, and will be taken very seriously by the instructor of this course, and the college generally.

  • I recognize that most students conduct themselves with honesty and integrity. I also recognize that the actions of a few dishonest students and the impact of those actions on the academic process necessitate a frank and ongoing discussion of this issue.

  • Please review the Student Handbook information on Academic Integrity.



  • The prerequisite for CHEM 220 is:
    • Successful completion (C or better) of CHEM 210 (General Chemistry 1) or equivalent.
  • Please speak with me if you have any questions regarding your preparation for the course, or to if you wish to discuss whether another course is better suited to your academic preparation or goals. Please also ask if you have questions about prerequisites or the petition process.


Important Waitlist & Enrollment Information

  • If you are trying to add the class, continue to follow standard WEBSMART registration procedures and check your email account for WebSMART notifications up to the first day of CHEM 220 class - January 20.
  • Waitlist priority will be observed for each lab section separately. If you are interested in more than one section, or wish to enroll in a different section, you must add yourself to the waitlist for that section.
  • Starting with the first day of classes:

    • If you are waitlisted for a course section:
      • You are required to attend one of the two scheduled labs on January 21 in order to maintain your waitlist priority.
      • You need only attend one of the two sections on that day.

    • If you are unable to enroll in your preferred section and you are unable to add to the waitlist for it prior to January 20:
      • Add your name to the waitlist sheets for the course section(s) you wish to add to on January 20 during the LECTURE or January 21 in the LABORATORY.
        • Your priority will be after all those who waitlisted prior to the first day of classes.
        • Your priority will be the same as other students added to the waitlist on January 20-21.
        • If necessary, a lottery will determine relative priorites of students added to the waitlist on those dates.
      • Follow the same procedures (above & below) as other students waitlisted for the course.

  • After January 21, if you are still waitlisted for your desired section:

    • You must continue to attend a lab section as instructed in order to maintain your waitlist priority. Add codes may be provided in lab. If you are not in class (or late) your add code may be offered to another student.

    • You must also attend lecture classes until you are able to add (or until it is announced that no additional adds will occur), as add codes may be provided in lecture. If you are not in class (or late) your add code may be offered to another student.

    • You must check the course website (this page) and your email every day for important enrollment information. Information relevant to all waitlisted students will be posted on the course website. Individual information may be emailed.

    • Please follow these instructions to maintain your waitlist priority. There are many students waiting to get into the course!