Chemistry 101 Beth Lindquist 7 Chem Annex 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 Advice…

To: From: I dont get problem 3 Srsly, plz help thx ~J

Advice Acknowledge instructor’s name. Put your name. 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 record). Allow for 24 hour response time.

To: From: 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 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 (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? S 8, NO 2, KCl, CH 4, H 2 SO 4 A) 1 B) 2 C) 3 D) 4 E) 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? S 8, NO 2, KCl, CH 4, H 2 SO 4 A) 1 B) 2 C) 3 D) 4 E) 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 H 2 O H 2 O H 2 O

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) 0 B) 1 C) 2 D) 3 E) 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)