INTRODUCTION TO CHEMISTRY

Composition of Matter (What stuff is made up of)

WHAT IS CHEMISTRY???

ANDChanges that occur to that matter

By definition, Chemistry is the study of:

Chemistry is very practical and has many applications to everyday life.

Chemistry became a science because people are naturally curious!

Chemistry is broken into 6 major areas of study:

•Organic Chemistry

•Inorganic Chemistry

•Biochemistry

•Physical Chemistry

•Analytical Chemistry

•Theoretical Chemistry

There is overlap between these major areas of study so you can’t talk about one area of study without relating to another area.

Organic Chemistry

Chemistry of compounds that contain the element "carbon"

Found in living systemsUsed in artificially made products

oSucrose C6H12O6

oNaCl

X

Inorganic Chemistry

Chemistry of compounds that DO NOT contain “carbon”

•BaCl2•NaOH•CH4

•Fe2O3

X

Analytical Chemistry

•Chemistry that defines the chemical composition of a material

Qualitative = tells what it isQuantitative = tells how much there is

Physical Chemistry

Chemistry that deals with physical properties of a material

Properties that can be measuredGenerate data on the material

Examples:o Temperatureo Freezing Pointo Melting Pointo Boiling Pointo Densityo Volume

Biochemistry

Chemistry of organic compounds and

the processes they go through

ProcessesoPhotosynthesisoKrebs cycleoGenetics

Theoretical

Chemistry

Using mathematics and computers to understand principles behind chemical behavior and to predict properties of new compounds.

• Quantum mechanics – explaining the probability of finding electrons within the electron cloud.

Research is done for different reasons. The type of research pursued is dependent on what information is important / needed.

Basic or Pure Research: The main goal of this type of research is to gain new knowledge about a chemicalor process, just for the sake of knowledge.

Chance discoveries can result from basic research. “I wonder what would happen if…”

Applied Research: The main goal of this type of research is to solve a specific problem.

Example: CFC’s (chloro fluoro carbons) in refrigerants destroyed the ozone so chemists formulated new refrigerants.

Technological Development:

This type of research involves the making and use of products that

improve the quality of life. Development can result from BasicResearch.

Examples: Teflon coating