Category Archives: Announcements

General announcements. All students should read these.

CHM 110 Section 1 and 2 – Test 3 grade note

Important:  If you’re in section 1 or 2 and your Test 3 begins with the question “Which of these units represents heat capacity?”, please bring your test to me either in today’s lab or in Wednesday’s class.  The test key for that form had an error in it and I may owe you a few points on your test 3 grade.

CHM 110 (All sections): Lab schedule change

[This post will remain at the top of the page until 10/25.  Scroll down to see other new content.]

I have changed the CHM 110 lab schedule as follows:

Week of 10/22 – 10/25:  No CHM 110 lab.  Turn in your report for experiment 5B in the envelope on Mr. Taylor’s office door (5416-G) by 2:30 PM on the day your lab would have met this week.

Week of 10/29-11/1:  Experiment 6

Week of 11/5-11/8:  Experiment 7

I’ve changed the lab schedule [here] to reflect the new schedule.

CHM 101 is not affected by this change.

CHM 110: Shared data for Experiment 3B (Section 3, Thursday)

Here’s the shared data from CHM 110 Experiment 3B. These are the ratios of mass product / mass barium chloride dihydrate that you need to complete the table on page 74 and answer the questions on pages 75 and 76 (10th edition: pages 72, then 73 and 74.) This is data for the Thursday lab section (section 3)!

Ratio of (mass product / mass BaCl2.2H2O):

  • 0.85080
  • 0.84979
  • 0.84963
  • 0.85048
  • 0.84631

The write-up for Experiment 3B (pages 71-76 in 9th edition, pages 69-74 in 10th edition) ) is due at our next lab meeting. If you have any questions about either the calculations or the rest of the write-up, either come by my office or ask here in comments.

Here’s a handout that describes the calculation procedure for this experiment:  (It’s the same one that was on your desk when you came in to the lab.)

[CHM 110 Experiment 3B calculation notes]

I recommend that you use your TI-83 calculator or a spreadsheet to find the standard deviation the lab manual asks you to calculate.

Warning:  There’s a possibly confusing typo on page 74 of the 10th edition lab manual.  In the chart in the middle of the page, barium chloride monohydrate is incorrectly given the formula BaCl2.H2O4. The correct formula is BaCl2.H2O

CHM 110: Shared data for Experiment 3B (Section 2, Wednesday)

Here’s the shared data from CHM 110 Experiment 3B. These are the ratios of mass product / mass barium chloride dihydrate that you need to complete the table on page 74 and answer the questions on pages 75 and 76 (10th edition: pages 72, then 73 and 74.) This is data for the Wednesday lab section (section 2)!

Ratio of (mass product / mass BaCl2.2H2O):

  • 0.85294
  • 0.84752
  • 0.85097
  • 0.85012
  • 0.85022
  • 0.85285
  • 0.85156
  • 0.85130

(Note:  The Wednesday section has fewer tables working than the others, so I’ve combined the data from both the Monday and Wednesday sections above)

The write-up for Experiment 3B (pages 71-76 in 9th edition, pages 69-74 in 10th edition) ) is due at our next lab meeting. If you have any questions about either the calculations or the rest of the write-up, either come by my office or ask here in comments.

Here’s a handout that describes the calculation procedure for this experiment:  (It’s the same one that was on your desk when you came in to the lab.)

[CHM 110 Experiment 3B calculation notes]

I recommend that you use your TI-83 calculator or a spreadsheet to find the standard deviation the lab manual asks you to calculate.

Warning:  There’s a possibly confusing typo on page 74 of the 10th edition lab manual.  In the chart in the middle of the page, barium chloride monohydrate is incorrectly given the formula BaCl2.H2O4. The correct formula is BaCl2.H2O

CHM 110: Test grades on D2L

CHM 110, all sections.  I have updated the gradebook in D2L with your most recent test, as well as our recent labs and homework grades.  Your current course average is also available.

Remember that at the end of the term, both one homework grade and one lab report grade will be dropped.  Also, your lowest test grade will be replaced by the final exam grade if it helps your average – unless you miss a test.  If you miss a test, the missed test will be replaced by the final exam grade.

CHM 110: Shared data for Experiment 3B (Section 1, Monday)

Here’s the shared data from CHM 110 Experiment 3B. These are the ratios of mass product / mass barium chloride dihydrate that you need to complete the table on page 74 and answer the questions on pages 75 and 76 (10th edition: pages 72, then 73 and 74.) This is data for the Monday lab section (section 1)!

Ratio of (mass product / mass BaCl2.2H2O):

  • 0.85012
  • 0.85022
  • 0.85285
  • 0.85156
  • 0.85130

The write-up for Experiment 3B (pages 71-76 in 9th edition, pages 69-74 in 10th edition) ) is due at our next lab meeting. If you have any questions about either the calculations or the rest of the write-up, either come by my office or ask here in comments.

Here’s a handout that describes the calculation procedure for this experiment:  (It’s the same one that was on your desk when you came in to the lab.)

[CHM 110 Experiment 3B calculation notes]

I recommend that you use your TI-83 calculator or a spreadsheet to find the standard deviation the lab manual asks you to calculate.\

Warning:  There’s a possibly confusing typo on page 74 of the 10th edition lab manual.  In the chart in the middle of the page, barium chloride monohydrate is incorrectly given the formula BaCl2.H2O4. The correct formula is BaCl2.H2O

Reminders for over the weekend

For all classes:

Labs start the week of 8/20-8/24 for CHM 101 and all sections of CHM 110.  You will not need to write anything in your lab manual for the first experiment, but bring it if you have it.  if you’ve not yet purchased a lab manual, you have until the next week to do so.

Your syllabus signature page is due at your next class meeting.  At latest, I must have your syllabus page by the end of the week ( 8/20-8/24) for you to receive homework/quiz credit for it.  Find the syllabus for your class using the links on the right.

For CHM 110 only:

You will not need to purchase a lab notebook until we do experiment 1C. If you’re not sure what kind of notebook to buy, check the lab notebook handout (in the Lab Handouts section of the site for CHM 110) or ask me when we meet in lab for the first time.

CHM 110 (ALL sections): Final grades have been posted

I have posted final grades for all sections of  CHM 110.  You may get your grades from these places:

  1. [Desire2Learn].  You can see individual test grades and your numeric average on Desire2Learn (D2L), as well as your latter grade.  Grades are available on D2L now. If you would like a copy of your grades from the course as well as your numeric average, print them from D2L now.  You will only have access to this semester’s grades on D2L for a week or so – whether or not you are attending classes later this summer in the fall.
  2. [WebAdvisor].  Webadvisor is your link to official FDTC data.  The grade on Webadvisor is your official grade, and will be the one recorded on your transcript.  WebAdvisor will only show your final letter grade, not your individual assignment grades or numeric average.  Grades will be available on WebAdvisor on Monday afternoon.

If you have any questions about your grade or if you wish to view your final (you don’t get to keep a copy of the final, sorry!), you may come by the office next week.  Please don’t call to ask about your grades, because I’m not allowed to discuss grades over the telephone!  You may e-mail me in Desire2Learn to ask about your grades, since Desire2Learn’s e-mail is a private messaging system which requires a password to log in.  If you have any question about your lab grades or materials, please ask you lab instructor.

A note on “extra credit”:  Your regular tests this semester had more than 100 points on them.  These points were “extra credit”, as was the fact that your final exam could replace your lowest test score.  In other words, your reported grade in D2L already includes all the “extra credit” you will receive in this course.  Any requests for additional “extra credit” will be ignored.