CH104CHEMISTRY

FOR ALLIED HEALTH

CHEMEKETA COMMUNITY COLLEGE INSTRUCTOR: Dr. Jan Cammack

http://faculty.chemeketa.edu/jcammack/

• Who are you? Are you in the right place? – GOB– Chemeketa elearn site– Course Web Page

• Course Syllabus & requirements– Who am I?– Web CT Quizzes

1st Day Stuff

1. Read through • Lab 1A: Safety and • Lab Experiment 1B: The

Scientific Method2. Homework problems due each

day– Online quiz due Tuesday

CH104 Recitation & Lab: Week 1

What is ChemistryThe Scientific Method

How To Study

Chemistry is the study of substances in terms of • Composition What is it made of?• Structure How is it put together?• Properties What characteristics does it have?• Reactions How does it behave with other

substances?

5

Definition of Chemistry

General Inorganic Analytical Physical

Organic

Biochemistry

Major divisions of Chemistry

Elements besides CarbonMethods of analysisTheory and concepts

Carbon based compounds

Chemistry of living things

Chemistry in Our LivesScientific Method:

Thinking like a Scientist

Process used by scientists to explain observations.

The Scientific Method

It involves making observations writing a hypothesis doing experiments proposing a theory

Develop a theory

Experiment

Do more experiments

Question

Hypothesis

Try newtests Did it work?

Yes

Scientific methodObserve

No

Summary of the Scientific Method

Everyday Scientific Thinking

Observation: The sound from a CD in a CD player skips.

Hypothesis 1: The CD player is faulty.

Experiment 1: When the CD is replaced with another one, the sound from the 2nd CD is OK.

Hypothesis 2: The original CD has a defect.

Experiment 2: When I play the CD in another player, the sound still skips.

Theory: My experimental results indicate that the original CD has a defect.

The step of scientific method indicated in the processes below is

◦1) observation 2) hypothesis◦3) experiment 4) theory

A.A blender does not work when plugged in.B.The blender motor is broken.C.The plug has malfunctioned.D. The blender does not work when plugged into a different outlet.E.The blender needs repair.

Learning Check

The step of scientific method indicated in the processes below is

◦1) observation 2) hypothesis◦3) experiment 4) theory

A.A blender does not work when plugged in. 1B.The blender motor is broken. 2C.The plug has malfunctioned. 2D. The blender does not work when plugged into a different outlet. 3E.The blender needs repair. 4

Solution

Chemistry in Our LivesA Study Plan for Learning Chemistry

The study features in the text include: 1. Learning Goals

• indicate what to learn 2.Concept Checks

• develop new concepts 3. Sample Problems

• provide step-by-step problem solving models4. Guides to Problem Solving

• give directions for working out a problem

Text Features for Learning

Studying for ChemistryActivities that can help you learn chemistry successfullyinclude the following: attend class regularly go to your instructor’s office hours form a study group with other students to discuss

problems and their solutions study and work problems every day do not wait until the night before the test to prepare for

an exam

Active participation will help learn the material more quickly and with more understanding.

1. Obtain an overview from the Looking Ahead topics.2. Form a question from the section title.3. Read the section, and answer your question.4. Work the Sample Problems and Study Checks.5. Check Answers at the end of the chapter.6. Proceed to the next section in the text and repeat

above.

Active Learning

Which of the following activities would be part of a successful study plan?A. staying out late the night before an examB. reading the text before classC. working problems with a study groupD. skipping the lecture 1 or 2 times a weekE. discussing a problem with the instructor

Learning Check

SolutionWhich of the following activities would be part of a successful study plan?A. (No) staying out late the night before an examB. (Yes) reading the text before classC. (Yes) working problems with a study groupD. (No) skipping lecture 1 or 2 times a weekE. (Yes) discussing a problem with the instructor