Introduction to Chemistry Chapter 1 Introduction to Chemistry

Ch. 1.1 What is Chemistry Chemistry: the study of the composition of matter and the changes it undergoes. What is matter? Matter: anything that has mass and takes up space.

5 areas of Chemistry Organic Chemistry Inorganic Chemistry Biochemistry Analytical Chemistry Physical Chemistry

Organic Chemistry Study of Carbon containing chemicals Living organisms Fossil fuels Most synthetic (plastic) material Binder, drugs, vitamins, gasoline, etc

Inorganic Chemistry Chemicals that do not contain carbon

Biochemistry Study of processes in living organisms. Digestion, etc. Photosynthesis

Analytical Chemistry Focuses on composition of matter.

Physical Chemistry Deals with chemical reactions Mechanism Rate Energy transfer

Pure V. Applied Chemistry Pure: pursuit of knowledge Determining how aspirin works Applied: directed to a practical goal Changing a drug to have less side effects

Why Study Chemistry Explaining the natural World Preparing for a Career Being an informed citizen

Ch. 1.2 Chemistry in your life Materials Clothing, cars Energy Petroleum, batteries Medicine/Biotech Prescription drugs, DNA Agriculture Hybrids, disease resistant, fertilizers, pesticides, etc.

Chemistry in your life cont’d Environment Clean up pollution Prevent pollution Universe Analyze data from space

Ch. 1.3 Scientific Method Observing (determining a problem) Hypothesis Experiment Theory A well-tested explanation. Atomic structure Scientific Law Statement that summarizes the results of many observation. Law of gravity, conservation of mass.

Ch. 1.4 Problem solving Analyze Calculate Evaluate What is wanted? What is given? Calculate Plan Unit cancellation Evaluate Does it make sense?