Chemistry 101

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-of-chapter 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.eduFrom: 2hot4u@gmail.com

I dont get problem 3Srsly, 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.eduFrom: 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”

How do we think about “science”? How do we solve a problem?

Lecture Syllabus 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 coordinationB) Bad breathC) SobrietyD) 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) 1B) 2C) 3D) 4E) 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)

AtomicElement

Molecular Elements

Compounds

Clicker Question How many of the following are

compounds? S8, NO2, KCl, CH4, H2SO4

A) 1B) 2C) 3D) 4E) 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 saltIII. dissolving of sugar in waterIV. melting a popsicle on a warm

summer day A) 0B) 1C) 2D) 3E) 4

Clicker Question Which of the following is a

homogeneous mixture?A) potting soilB) sodium chloride (table salt)C) pure waterD) oil and vinegar dressingE) sports drink (like Gatorade)