Announcements
Posted 5/11/07
Navigating this Site
Clicking on the links at left will change the information displayed in this part of the window.  Home always returns you to this page.

Suggestions, comments, etc...
Suggestions for improvements and notifications of broken links are always welcome.  Contact me (Dr. G) at: gutow@uwosh.edu

Old Announcements
(in reverse chronological order)
Posted 5/10/07
  • Last set of PowerPoint slides is now (12:30 PM) accessible.  Sorry something went wrong and I did not realize it wasn't working.  Thank you to those who notified me.
Posted 5/8/07
  • The cover sheet for the last exam has a little more information on it than the sample exam.  If you want to look at the cover sheet for the last exam before Friday you can download it as a .pdf file by clicking here.

Posted 5/4/07
  • Recent updates: Lecture overheads/PowerPoints through 5/4/07.
Posted 5/3/07
  • Recent updates: quiz 8 and worksheet 13 copies and answer keys; review sheet annotations through the end of the semester; answer key for the last set of suggested problems; sample exam 5.
Posted 4/24/07
  • Suggested reading and problems for the  next section have been sent to the discussion list and posted on the homework section of this web site.
Posted 4/23/07
  • The answer key to exam 4 is available as a .pdf by clicking here, has been e-mailed to you and is in the glass case across from lab.

 Posted 4/18/07
  • Recent updates: latest lecture PowerPoints, answers to latest quiz and worksheet.
Posted 4/16/07
  • All review material except for Quiz and Worksheet stuff related to Wednesday's discussion are now posted on the class web site.

 Posted 4/11/07
  • Recent updates to the web site: PowerPoints from Wednesday Lecture, Discussion Quiz and Worksheet Answers.

Posted 4/10/07
  • Recent updates to the web site: PowerPoints from last Friday and Monday lectures, suggested problems for next section, answers to problems from greenhouse gases/VSEPR section.

Posted 4/5/07
  • Recent updates to the web site: blank copies of worksheet 9 and answers to worksheet 9, pdf of last lecture overheads.

 Posted 4/3/07
  • Scores for exam 3 are available on opens in new windowD2L. Please check that you agree with the scores I have posted.  If you find any problems please let me know by turning in your copy of the exam with the exam cover sheet attached. Also please write what you think is wrong on the cover sheet.
  • See the e-mail sent to the discussion list for more information on exam 3.
  • The suggested reading and problems for the next section were posted yesterday and sent to the e-mail discussion list.

 Posted 4/2/07
  • The answer key for exam 3 is available in pdf format by clicking here.  Please let me know as soon as possible if you think you have found an error.
  • Suggested reading and problems for the next section will be e-mailed out and posted later today.

Posted 3/28/07
  • Note that section 9.7 got left out of the reading assignment.  Please read before class on Friday.
  • Answers for quiz 5 and worksheet 8
  • Review notes for all the sections on exam 3 are available in the review sheets section.
  • Sample exam 3  is now available.
  • Answers for the Lewis Structures and Bonding homework (suggested readings and problem #6) have also been posted.

Posted 3/15/07
  • Recent updates to this web site: suggested reading and problems #6, answers to quiz 4, worksheet 7 and problems #5.

Posted 3/6/07
  • Scores for Exam 2 are now posted on opens in new windowD2L.
  • Please check that you agree with the scores I have posted.  If you find any problems please let me know by turning in your copy of the exam with the exam cover sheet attached. Also please write what you think is wrong on the cover sheet.

    SUMMARY OF EXAM RESULTS:

    a) The average (60%) was significantly lower than on the first exam.  A drop in the average on the second exam is common.  How big this drop is varies from class to class.

    b) A change of 1 or 2 questions in the number you got correct (up or down) is not significant.  So if you are within 16 points of your score on the last exam you did pretty much the same as last time.  If the number correct changed by 3 or more your performance is probably different from exam 1.

    c) If your score went up keep doing what you are doing.  It appears to be working for this class.

    d) If your score went down by more than 2 questions (16 points) or you are not happy with the score you got, consider changing the way you study.  For suggestions you can look at the information on the class web site and/or arrange an appointment to discuss your study methods with me.

    e) Although all questions were answered correctly by some of the class there was one question that a significant fraction of the class got wrong.  This was the question asking for which ionization energy of the P atom will you see an exceptionally large increase over the previous ionization energy.  P has 5 electrons in its outer shell.  After taking those all off the next electron will be a lot harder to remove.  This means the 6th ionization energy is the one that is suddenly much larger.  The 4th ionization energy will show somewhat of a jump up because you switch from removing 3p to removing 3s electrons, but this is not a huge jump.

    A REMINDER OF HOW EXAM SCORES CORRELATE WITH GRADES:

    a) Because each exam is only about 10% of your points for the course, ONE GOOD OR BAD EXAM SCORE WILL HAVE LITTLE EFFECT ON YOUR GRADE.

    b) From past classes I can provide you with ROUGH guidelines for how AVERAGE exam score correlates with final grade. BE AWARE THESE ARE ONLY ROUGH GUIDELINES as a few students with exam averages in one range ended with a grade in the next higher or lower range, because of how they performed in other parts of the class.

    Grade range                   Average Percentage Score on exams GREATER THAN
    D                                            40%
    CD-C                                         50%
    BC-B                                         62%
    AB-A                                        78%

    c) As you can see, these are lower than the % cut-offs on the syllabus.  What this reflects is that historically most students do better on a percentage basis in other parts of the course than they do on exams.

Posted 3/5/07
  • The answer key for Exam 2 is available as a .pdf file by clicking here.
  • Suggested reading and problems for the next section are also available in the (password required)Homework Assignments section.
Posted 3/2/07
  • Last lecture powerpoint which includes review material and additional %composition problems is posted in the lecture powerpoint section.
  • Please remember pencils, calculators and IDs for Monday's exam.
Posted 2/27/07
  • Recent updates: Answer key to the compounds and stoichiometry homework, sample exam 2 and review sheets (through exam 2).

Posted 2/24/07
  • Recent updates: Answer Key to atomic structure homework, answers to quiz 2 and worksheet 4, polyatomic ions to memorize, corrected version (Study Aids --> Things to Memorize), and PowerPoints from lecture are up-to-date.

Posted 2/14/07
  • Suggested reading and problems for the next section on atomic structure has been posted in the password protected homework section.  It has also been sent to the class discussion list.
  • The answer key to the first exam may be downloaded by clicking here.
Posted 2/8/07
  • Answers and blank copies of this week's worksheet and quiz have been posted (see Lecture & Discussion section).
  • Sample exam 1 has been posted (see Study Aids section).
  • Do not forget to do the prelab for next week's lab.  A copy of the assignment has been sent to the e-mail discussion list and is available in the Lab section).
Posted 2/4/07
  • Lab starts this week.  Do not forget to go do your prelab reading and go to lab.
  • Lab grading rubrics and checklists have been posted on the class web site and sent to the e-mail discussion list.
  • If you have not signed up for the e-mail discussion list please follow the link at left to do so.
Posted 2/2/07
  • Suggested reading and problems on the formation of elements and radioactivity have been sent to the e-mail discussion list and added to the class web site.
  • If you have not signed up for the e-mail discussion list please follow the link at left to do so.
  • Homework assignments and answers may be found by following the links from under the Lecture and Discussion heading at left.
Posted 1/18/07
  • Welcome to the Chemistry 105 website for Spring 2007.  This site is mostly complete, but still under construction.  Some links do not yet work. Please check back for updates.
  • Labs do not meet the first week of class.
  • The first reading and problem assignment may be downloaded as an Acrobat .pdf document Opens in new windowhere.  In the future assignments will be available through the password protected link in the lecture section of this web site. 
  • In the future copies of assignments will also be sent to the e-mail discussion list.  Sign up for the discussion list on the Opens in new windowdiscussion list page.

Last Updated: 5/11/07