Chemistry 101





Beth Lindquist
7 Chem Annex
blindqu2@illinois.edu
Office Hours: 9-10 Tuesdays and
Thursdays (after lecture)
And by appointment
FAQs


Recording the class is fine.
When the website is working, I will post
the powerpoint slides there AFTER
class, probably the next day.
The Course Website


Is broken! (for now)
Chem 101A is the same course taught
by a different instructor (Gretchen). You
can use that website for now. (Ignore
specific dates though.)
Section BDJ




Your location information is not online,
as of yesterday. Here it is:
Lab: 201 Chem Annex
Discussion: 19 Noyes Lab
If you didn’t make it to lab as a result,
touch base with your TA so they know
that you are in the course.
Textbook Homework


Page 10 of your lab manual has a list of
problems. These correspond to end-ofchapter problems in the textbook.
Chapter 2 and 3 are due tomorrow in
discussion. You will turn them in and
your TA will grade for completion.
Showing work is a good idea.
General Email Advice…
To: gadams4@illinois.edu
From: 2hot4u@gmail.com
I dont get problem 3
Srsly, plz help thx
~J
Email Advice







Acknowledge instructor’s name.
Put your name.
Use @illinois email account if possible.
(otherwise put netid after name)
Do not use “text message” code.
Put your section.
Do not erase the message I sent
previously (the email record).
Allow for 24 hour response time.
To: gadams4@illinois.edu
From: jdoe25@illinois.edu
Hi Gretchen,
I am having trouble understanding problem #3
of the Additional Questions on pg. 23 of the
Lab Book. How am I supposed to make my
drawings for each measurement? Can you
please give me some guidance? Thanks!
-Jane (jdoe25, ADM, Chem 101)
Lectures

Provide a “big picture”



Lecture Syllabus


How do we think about “science”?
How do we solve a problem?
Page 8 of Lab Book
Interactive


I expect and encourage questions.
Participation expected through clickers.
Let’s Give it a Try…

Astronauts undergo some of the most rigorous training
ever conceived. They must be able to perform
dangerous work while hurtling through space, all
without throwing up. China is after only the best of the
best for its space program, so candidates are tested for
what?
A) Hand-eye coordination
B) Bad breath
C) Sobriety
D) Parallel parking skills
Source: Wait Wait…Don’t Tell Me! Daily News Quiz, 8/6/09
Answer


The correct answer is B. If you want to become a
Chinese astronaut, don’t forget to floss; the Chinese
training program won’t accept space hopefuls who
have bad breath.
Ever ready to meet the needs of the marketplace,
Altoids quickly responded with a new product line:
Asteroids: The Curiously Strong, Suborbital Mint.
Source: Wait Wait…Don’t Tell Me! Daily News Quiz, 8/6/09
Clicker Points

Participation Points – answer at least 75% of
the questions per lecture



1 point per lecture
Capped at 20 points (24 lectures w/ clickers)
Bonus Points – earn 0.2 points for every
question you answer correctly

Not to exceed 1 point per lecture
Electronic Homework








www.chem.illinois.edu (course website)
Follow “Lon-Capa Access Instructions”
HW #1, Type 1: due Tues, 9/3, 7:00 pm
HW #1, Type 2: due Wed, 9/4, 7:00pm
Receive no credit after due date.
Individualized assignments.
Video Hints and Tutorials
Can Post Discussion
Electronic Homework

Type 1 Homework



99 tries
Usually due Mondays (deadlines posted
next to each actual assignment)
Type 2 Homework


5 tries
Usually due Wednesdays (deadlines posted
next to each actual assignment)
Chemistry 101
How did lab go with your TA?
 Must have usage fee card by
next week’s lab.

Lab Sections


Lab write-ups must consist
of coherent explanations
and complete sentences.
This is another chance for
discussion of chemical
principles.
Exams
Evening exams (7-8:15 pm).
Dates given in the Lab Book.
 Multiple choice and free
response.
 Emphasis on understanding.
 Previous exams given in the Lab
Book.

Chemistry Learning Center (CLC)

212 Chem Annex
Walk in tutors
 Office hours
 Reference materials

Back to chemistry!
Clicker Question

How many of the following are
compounds?
S8, NO2, KCl, CH4, H2SO4
A)
B)
C)
D)
E)
1
2
3
4
5
Particulate Nature of Matter


Atom: smallest part of an element
that is still that element
(fundamental unit of which
elements are composed).
Molecule: Two or more atoms
joined and acting as a unit.
(element or compound)
Atomic
Element
Molecular Elements
Compounds
Clicker Question

How many of the following are
compounds?
S8, NO2, KCl, CH4, H2SO4
A)
B)
C)
D)
E)
1
2
3
4
5
Macroscopic versus Microscopic
Physical Change

A change in one or more physical
properties, but no change in the
fundamental components.

Changes of State
Macroscopic versus Microscopic
H2O
H2O
H2O
Chemical Change

A change in the fundamental
components of the substance.
Create something new/different
 Chemical changes are called
reactions.

Chemical Reaction
Clicker Question

How many of the following are examples of a chemical
change?
I.
burning of wood
II.
pulverizing (crushing) rock salt
III.
dissolving of sugar in water
IV.
melting a popsicle on a warm summer day
A)
B)
C)
D)
E)
0
1
2
3
4
Clicker Question

Which of the following is a homogeneous
mixture?
A) potting soil
B) sodium chloride (table salt)
C) pure water
D) oil and vinegar dressing
E) sports drink (like Gatorade)