LECTURE 1

June 13th

Today’s Agenda

Discuss Syllabus

Introduction to Chemistry

Units of Measurement

Conversions

Syllabus

Instructor: Chad Cockrum

Lecture: Section 200 – M and W, 10:00 a.m. – 12:00 p.m. Section 201 – M and W, 1:00 p.m. – 3:00 p.m. Lab Experiments: Section 200 – F, 10:00 a.m. – 3:00 p.m.

Section 201 – F, 1:00 p.m. – 3:00 p.m. E-Mail: chad.cockrum@colorado.edu

Study Hall: Monday, 7:45 p.m. – 9:45 p.m.

Instructor Assistants: Jonathan Taylor and Kelly Waters

Syllabus

Grading Policy:

Participation: 10%- I expect you to engage in classroom discussions and

activities, as well as helping your group members answer in class questions and assignments. Sleeping in class, talking with your classmates when not permitted, or any form of destructive behavior will result in a lower grade.

Exams: 30%- There will be two exams: A midterm and a final (each

worth 15%). The final will be cumulative with more emphasis on the second half of the summer’s material.

Syllabus

Labs: 15%- There will be 3 labs throughout the summer. I will grade

you on your ability to carry out the lab procedure (Safety, Behavior, Preparation, etc.)

Homework: 25%- All homework assignments will be given specific due

dates. For each day that the assignment is late, you will lose 10% of the assignment’s grade.

Quizzes: 15%- Before the class lecture begins, there will be a small quiz

consisting of a couple questions that cover the material from the previous class. These will be quick assessments of your effort.

Syllabus

100% - 90% A89% - 80% B79% - 70% C69% - 60% D59% - 0 % F

  

Required Materials: 

- Non-programmable scientific calculator- Spiral Ring Notebook or Folder- Internet Access Daily (To download powerpoints)

 

Syllabus

Other:

- No food or drink in labs- No cell phones in labs

*** Come to class prepared!- Print out powerpoint slides before class.- Make sure you have reviewed the previous

material.- Be ready to learn Chemistry!

Introduction to Chemistry

What is Chemistry???

The science that deals with the composition and properties of substances and various elementary forms of matter.

Basically, the study of matter and its properties.

Introduction to Chemistry

What do Chemists do?

Study subatomic particles for research or even philosophical reasons.

Study the reactions and synthesis of different compounds.

Study how the chemicals in the atmosphere are affecting our daily lives.

Find ways to better our daily lives in general!

Units of Measurement

There are many units, but you will only have to know the following.

Mass = Grams (g) Volume = Liters (L) Amount = Moles (mol) Length = Meters (m) Temperature = Kelvin (K)

Conversions

Conversions are arguably the most difficult concept in beginner’s Chemistry.

We are going to learn basic conversions, but keep in mind that you will come across more complex conversions later. So master them now!

Conversions can be used to change the scale of a base unit or to change between types of units.

Conversions

Steps:

1. Position units in a way so that everything is cancelled except the unit you want to end with.

2. Visualize which units are smaller and larger.

3. Figure out ratios and plug the numbers in.

4. Plug in starting amount and calculate.

Conversions

Let’s convert 10 grams to milligrams.

Step 1: Units

grams x milligrams grams grams x milligrams grams

Conversions

Step 2: Visualize

Using the Life Saver Sheet, we can determine that there are .001 (1x10-3) grams in 1 milligram. This is equal to 1000 (1x103)milligrams in 1 gram.

Since 1 milligram equals a fraction of a gram… which one is bigger?

Grams!!!

Conversions

Step 3: Ratios

grams x 1 milligram .001 grams (1x10-3) OR

grams x 1000 milligrams (1x103) 1 gram

Conversions

Step 4: Calculate

10 g x 1 mg = 10,000 mg .001 g (1x10-3)

10 g x 1000 mg (1x103) = 10,000 mg 1 g

Conversions

Now, try to convert 300 Megagrams to kilograms.

300 Mg x 1x106 g x 1 kg = 1 Mg 1x103 g

300,000 g

Next Class

Turn in Homework 1

Print out Powerpoint 2

We will be going over Density, Energy, Temperature, and Physical and Chemical Properites/Changes.

Website: http://cuubchemistry.wikispaces.com