Chem 108 - Sections 89 and 90 (with Craig Rusbult) - Fall 2012
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I'm Craig Rusbult, pronounced Russ-bolt. Originally a chemistry major, I liked chemistry (getting "best student awards" for all high schools of Orange County, CA, and then University of California at Irvine) and I still do. But I'm also interested in education, and now I'm focusing on it.
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A Gluep Sculpture of me, creatively made in lab by students in Fall 2012:
This section was added due to a student's request before Exam 1:
QUIZ 3
Yesterday in lecture, Dr Larson said that Albert Einstein was one of her favorite scientists (mine, too) and that we should help you learn how to use the "e = mcc" equation he discovered. I'll explain this Friday, but it may "pass by you too quickly" unless you...
Work problem 49 (on page 328 of your CiC-textbook), and study the worked-out answer (on page A-23 in the back of CiC). Here is some useful information:
In "e = mcc" you must use the proper units for energy (e), mass (m), and the speed of light (c). The proper units are: e in Joules (J), m in kg, c in m/s. For problems 47-49, some useful conversion factors are:
for mass "m", 1 kg = 1000 g
for energy "e", 1 kJ = 1000 J
As usual, I encourage you to invest time, but don't waste time. If you're making progress, continue. If not, ask other students or me "what to do" and why.
Then work problems 47a and 48. So you'll have feedback about whether you're doing it correctly, I think the answers are:
47a. change in mass = 5.57 x 10*-13 kg = 5.57 x 10-13 kg
(5.57 x 10*-13 means 5.57 times 10 to the -13)
If you didn't get this answer, check the equation-setup below.
48. 2.385 x 10*12 = 2.385 x 1012
EXTRA PARAGRAPHS:
You can invent your own problems -- and see the simplicity of a situation where the equation has two variables (E and m, because the value of c will always be given to you) so if you know either, you can find the other -- by "reversing" what is GIVEN and what you're asked to FIND.
For example, a reversed 47a would be "if during a chemical reaction the change of mass is 5.57 x 10-13 kg, find the energy in kJ." Of course, you know that the answer is
Or you can change the units, like this: "if during a chemical reaction the change of mass is 5.57 x 10-10 g, find the energy in kJ."
Or a question might ask "if during a chemical reaction the change of mass is 5.57 x 10-10 g, find the energy" without specifying the units of energy, which means that you should give your answer in the "proper units" which is J, not kJ.
a reminder: ALWAYS include units in your answer.
also -- You could be asked to find the change of mass during a reaction, as in Problem 49, where the method of solving is shown on page A-23 of CiC. Due to the "precedent" in Quiz 3, this seems less likely, but it would be a totally reasonable type of question to ask.
You can think about 47c, and tomorrow morning I'll talk briefly about it and 47b.
Here are equation-setups:
47a. e = m c c
(50.1 x 1000 J) = m (3 x 10*8)(3 x 10*8)
48. e = m c2
e = (.0265 g)(1 kg / 1000 g)(3 x 10*8 m/s)2
If you have lab tomorrow, you can ask questions then. Or, for everyone, after lab at 5:30 in Chem 1371. Or in class Friday morning.
The course syllabus (plus an explanation in the first lecture) says you need a "scientific calculator" that has an "exponent" button like "EE" (on a calculator made by TI) or "Exp" (if made by Sharp) or something like that. For example, to enter "3 x 10*8" you press "3 EE 8" or "3 Exp 8".
The right side has four main parts:
• Preparing for PreLab Quiz & Lab
• Preparing for your Current Exam
• Practical Strategies for Effective Learning
• Archived Information about your Previous Exams
italicized links keep you inside this page, and
non-italicized links open a new page in this window
Please email me your 108-webinfo so I can add it to the web-page |
Suggestions to PREPARE FOR LAB:
Biodiesel and Gluep (Dec 11 or 13)
Prelab Quiz: Like last week, I don't have much to say about this.
Yes, there are only 4 questions, with point values of 2,2,3,3.
Use information from the lab manual for #3,
and from lectures (W & M, Dec 5 & 10) for #1,2,4.
Green Pages: There also isn't much for this.
For "d" think about the ratio of "polar groups / C-atoms".
You can do all questions after the lecture M (Dec 10) and before lab.
Suggestions about Preparing for Previous Labs
The tips above (available mid-afternoon Monday) help you prepare for lab.
The yellow box below will help you learn, to prepare for quizzes & exams.
Preparing for Quiz 9The main "prep day" for Quiz 9 will be W. We'll also do some prep F, For Quiz 9, re-study the recent handouts (given to you for Exam 4), Handout for Exam 4 ( scanned black & white & colorized version )
plus relevant parts of these, made a week earlier for Quiz 8: Handouts — Quiz 8a and Quiz 8b (with principles) Worksheet — Quiz 8c (with practice problems + tips) Questions and Key ( B-and-W & color )
I've colorized a lecture handout (maybe for W, Dec 12) showing
also: I just discovered a worksheet, from Fall 2011, with a
problem Line Diagrams (Skeletal Diagrams) clearly explains-and-shows these
Preparing for the Final ExamWhat kind of questions will be on the final exam? Early in the semester, I told you that: In September and October, you can begin learning in ways Below are the handouts I made for you, to summarize ideas Preparing for Exam 1• NUCLEAR REACTIONS — As explained in class, I recommend as in my COLORIZED version from Fall 2011:
Also, in mini-handouts that you may or may not find useful: Flash-Card List for memorizing Names-and-Symbols e = mc2 — four problems (and more) with answers: • The exam from Spring 2012 has an e=mc2 problem on page 4.
Preparing for Exam 2• CARBON-SULFUR-NITROGEN (plus OXYGEN) This is the handout I gave you W, Oct 3. I recommend using the COLORIZED version, because the colors • green shows respiration & photosynthesis (with CO2 & O2), (and you can fill a blank grid with information about C-S-N-O-etc)
W, Oct 10, I gave you
• ELECTROMAGNETIC RADIATION ERRORS — "NO2 –(600 nm, visible light)→ NO + O" not N2O. As I've explained, the main cause of melanoma is UV-A. I think all other info is correct, but (as always) if you see any errors,
• CFCs-OZONE-etc (for Stratospheric Ozone,...) – Colorized Version shows and blue (re: Cl & ozone depletion) to supplement blue parts of the EM Grid.
Preparing for Exam 3(for Stratospheric Ozone,...) – Colorized Version
2 • Quiz 6 (CFCs-etc, acid-base, pH, polarity & solubility,...) – on Nov 2: errors: for "NH3 + H2O..." [OH-] increases (basicity ↑, pH ↑, acidity ↓ );
3 • Quiz 7a (math with conversion factors) – handout on Nov 7:
4 • Quiz 7b - drawing & naming isomers (principles, examples),... – Nov 9: error correction: halfway down the right side, a line that begins 5 • Exam 3 (a review sheet, now in almost-final form, for Nov 13 & 14) Exam 3 and my email to you M night, Nov 12.
Preparing for Exam 4You'll find these handouts earlier because they're part of preparing for Quiz 9.
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Practical Strategies
for Effective Learning:
Chemistry is cumulative, so consistent well-timed studying
will help you build and maintain a strong foundation. But
don't waste time; if you have trouble, get help from others.
It's not the will to win,
it's the will to WORK to win.
( A former co-teacher of chemistry was a star sprinter, and
one of her t-shirts was a reminder that "the will to work to win"
is essential for achieving high-quality performance in athletics,
this also is essential in chemistry and your other classes. )
SUCCESS, as defined by John Wooden, is "peace of mind, which is a
direct result of self-satisfaction in knowing you made the effort to
do your best to become the best that you are capable of becoming."
A Master Skill for Life – Learning from Experience
Example 1 — do it better
One of my friends became an expert welder by following
wise advice from his welding teacher: Every time you do a job,
do it better than the time before (by learning from the past and
concentrating in the present) and always be aware of what you
are doing now (and how this is affecting the quality of welding)
so you can do it better the next time; you are intentionally
learning from the present, to help you prepare for your future.
Example 2: Why did I miss it? How can I fix it?
You can learn by using an Oregon Strategy (that was used
to help students one semester when I was visiting U of O)
so — like the welder — you will continually improve:
For each exam-question you missed, ask "Why did I miss it?"
( not enough studying time? not studying in the most productive ways?
not performing well during the exam, so you “knew” but didn't get credit?
or...? ) and "How can I improve? (so the next time I'll get it correct)"
These strategies – Learning How to Weld and Oregon Strategy – are
examples of Learning Strategies (to improve the quality of your learning,
thinking, and performing) that will help you succeed in Chem 108, and in
the rest of life. The general skill of developing Learning Strategies could
be one of the most valuable skills you develop in Chem 108. How?
Below is a general strategy to develop-and-improve a Learning Strategy.
Example 3: A Strategy for Learning in Lectures
From the beginning, I've emphasized that the most important single
skill in Chem 108 is learning from lectures. To improve this skill:
you make a strategy-plan for the first lecture; you use this strategy
and observe your actions (in applying the strategy) and the results (in
your quality-and-quantity of learning); you re-plan for the second
lecture (by using your experience to evaluate the strategy and your
actions, so you can decide whether to keep them as-is or revise them),
then use-and-observe in the second lecture; you continue this cycle
(plan, use-and-observe, plan, use-...) so you can continually improve.
I've made a page with useful principles for improving your
Skills for Learning (in lectures & other ways) for Chem 108:
use Course Information for planning, to use time effectively;
lectures (prepare before, concentrate during, review after);
concentration (internal vs external, "competition" principle);
FLASH CARDS are a good way to remember important ideas;
Quiz 1 vs Quiz 2 (why is #2 easier? what does the dog do?).
ASSIGNMENTS & WEEKLY PRELABS have heavy "late penalties"
so put them on your Weekly/Daily Schedule of Things to Do.
Some things are constant every week, and others change.
I recommend doing PreLab Quizzes after M lecture, and
don't procrastingate – if a Short Assignments is due Friday,
finish it T night (*) so you can print it and give it to me W, then
any last-minute surprises won't matter, and you won't forget.
* Also include it R night, in case you say "it can wait" T night.
MISCELLANEOUS IDEAS
that can be fun and/or useful, including
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Habits of Highly Successful People,
Pyramid of Success (from John Wooden),
Conflict Resolution.
UW GUTS
(Greater Univeristy Tutoring Service
offers free
tutoring (drop-in & in other ways)
plus a Study
Skills Program and more.
Life Tutoring: for help with the personal challenges of life,
services (counseling,...) are at University Health
Service.
UW's Safety Message (from Dean of Students)
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• Using the Old Exams: As explained in my email about "Preparing for Exam 1" on Sep 29:
I don't think this will be important for the Final Exam, but (in case it might be useful) for each exam here are changes in the topics that were covered:
For Exam 1: I can't find any "tips" for these, so...
For Exam 2: a clarification about colors — on Spring 2012, Part 2, #4, TOPICS COVERED on Old Exams and your Exam on Oct 26: • Fall 2012: NOW (Oct 18) you can do page 2 (all), pg 3 (all), • Spring 2012: NOW (Oct 18) you can do Part 1 (all), Part 2 (all),
For Exam 3: Due to different timings for lectures-and-exams, here are some changes: from Exam 2 in 2012, include: Part 4, #1, 3-4-5. on Exam 3 of 2011, skip: Part 4, #1-2-3,4; Part 5, #1-6; on Exam 3 of 2012: in Part 4, #5, all was review (could be on Exam 3) TIPS: I suggest that you work the two "Mole Lab" problems on Exam 2:
For Exam 4: Hopefully you've already studied these, which I recommended for Quiz 8: • Exam 3, 2011 – Part 5 (Gasoline), Part 6 (Carbon Cycle & Plastics) • Exam 4, 2011 – Part 1 (#3, Functional Groups), Part 2 (The Big Six) • Exam 4, 2012 – Part 1 (from Crude Oil to Gasoline), Part 3 (Polymers, Also, • Exam 3, 2011 - Part 4 (Energy Content of Fuels). • Exam 4, 2011 - do Part 1 (#2 for CHO, but skip #1 for Fats); Basically, do everything except sections for Fats, and Soap/Biodiesel. • Exam 4, 2012 - In addition to Parts 1, 3, 4 (listed above for Quiz 8), |
Here is part of the email about "sharing personal information with other students" that I sent September 5:
Greetings,
1. ..... { I cut this, and also some now-irrelevant sections below. }
2. Here is a closely related optional activity (with no points-credit) that will help us build "community" in our sections. How? By sharing personal information so you can learn more about each other.
THE BASICS -- In an optional email with a subject of "108-webinfo" sent to only me (not Dr Larson), include the first paragraph of #4 -- "write about what interests you and/or what you enjoy doing" -- as-is from Short Assignment #1, or modified in any way you want by adding, subtracting, and changing.
CONTENT -- What should you say? Include anything you want to share with others. Here are some possibilities: your name, where you're from (recently and earlier in life), what you did over summer vacation, major/career (and if nursing, as in the 490-FIG, special health-care interests?), year in school, plus what you enjoy (hobbies, activities,...), travels (what you have done and what you want to do in the future), music you do (or don't) like to hear or play, sports you enjoy watching and/or playing, pet peeves and special joys, jobs you've had that you enjoyed (or didn't), etc, and maybe ideas from the rest of Short Assignment #1. You can include any of these, or all, or none (but other things instead), just say whatever you want to say about yourself.
FORMAT -- Please begin with your name (what you want others to call you) and a dash. For example, Susan Malone (who wants to be called Susie) would begin the main body of her message with "Susie Malone - ", like this:
Susie Malone - I'm from Janesville (Parker HS) and I enjoy playing ultimate frisbee and blues guitar, listening to... This summer, I..."
And send your email to only me, not Dr Larson.
PURPOSE -- I will put the text from each "108-webinfo" email into a web-page, and will give all of you a link to it. Why? So other students can discover more about you, and you can learn about them.
Craig
this page is https://mywebspace.wisc.edu/crusbult/web/108/index.htm