what is chemistry?. chemistry studies the –composition –structure –properties...

What is Chemistry?

Chemistry studies the

–Composition–Structure–Properties–Transformations

of matter

(What it’s made of)

(How it’s arranged) (Characteristics)

(Behavior)

What is Matter?

• Anything that has mass & occupies space.

Which of the following are matter?

Rain Sunlight CloudsHeat Rocks AirSteam Radios Radiowaves

What’s the difference between mass and weight?

• Mass is a measure of the amount of matter.

• Weight is more complicated. Weight depends on the amount of matter and on the gravitational pull exerted on the matter.

What do chemists do?

• They figure out how things work

And

• They design materials with specific properties for specific applications.

Basic Research

Applied Research

What materials in your life result from chemistry?

• Medicines• Plastics• Metals• Ceramics• Synthetic Fibers• Concrete• Abundant & Safe food supply

What about energy?

• Fossil Fuels• Solar• Nuclear• Batteries

What about the environment?

• Ozone Depletion• Global Warming• Acid Rain• Ground water contamination• Surface water contamination• Heat pollution

What kinds of chemistry are there?

What’s this?

http://www.utdallas.edu/~parr/chm1341/laltable.gif

What are Elements?

Elements are:

• Fundamental building blocks of nature.

• Different elements have different types of atoms.

What are the parts of an atom?

Protons

Neutrons

Electrons

How are atoms of different elements different?

•They have different numbers of protons.

How many elements are there?

• About 115 elements.• Some are man-made.• 88 or 92 naturally occurring.*• (Some have v. short half-lives –

none around. 43, 61, 85, 87: no stable isotopes.) Some say only 43 & 61 not.

*Depends on how you count.

What is the most abundant element in the universe?

• Hydrogen!

What is the most abundant element in the earth’s crust?

What is the most abundant element in the human body?

What does it look like when you work as a chemist?

http://www.chem.umu.se/dep/anachem/forskning/images/solutions.jpg

http://www.cod.edu/people/faculty/fullerd/Images/CHglass.GIF

http://faculty.philau.edu/AshleyJ/resear4.jpg

http://www.esp.edu/chemistry/reu/chemistry.with.a.purpose.jpg

http://www.benfieldhrc.org/SiteRoot/activities/books/global_warming.jpgglobal warning

http://www.imc.tuwien.ac.at/catalysis/jobs/nox_kreis.gif

http://web.aces.uiuc.edu/aim/images/smog.jpg

Travel?

http://news.uns.purdue.edu/UNS/images/shepson.arctic.jpeg http://www.env.leeds.ac.uk/resear

ch/ias/chemistry/images/plane.jpg

http://laserweb.jpl.nasa.gov/images/planet_off.jpg

http://www.ndeanalytical.com/FTIR.jpg

http://www.udri.udayton.edu/NR/rdonlyres/3E0F9390-ECBE-49FE-A9BB-1BF1353388D7/0/varian.jpg

http://www.biochemistry.org/education/corecurr96/corecurric2.gif

http://images.google.com/imgres?imgurl=http://biochemistry.unh.edu/alumimages/DFCIPIC.jpg&imgrefurl=http://biochemistry.unh.edu/undergraduate/whatis.html&h=300&w=315&sz=50&tbnid=h_5iPmmsc-wJ:&tbnh=107&tbnw=112&start=84&prev=/images%3Fq%3Dbiochemistry%26start%3D80%26hl%3Den%26lr%3D%26ie%3DUTF-8%26sa%3DN

http://www.sciencegeek.net/Chemistry/Powerpoint/Chapter22/Chapter22_files/slide0001_image002.jpg

http://www.science.mcmaster.ca/mnr/graphics_present/Inside-Reactor/newcore.jpg

http://www.unlv.edu/Colleges/Sciences/Chemistry/images/dennis.jpg

http://web.utk.edu/~dad/blaser.gif

http://www.emsl.pnl.gov/capabs/ri/lpas_fig1.jpg

http://jilawww.colorado.edu/~djn/index_files/slitdischarge_pix.jpg

http://laser.physics.sunysb.edu/~amarch/annemarie.jpg

http://www.nat.vu.nl/~laser/D35_2.jpg

http://www.engr.unl.edu/erc/images/compou~1.jpg

1 atm = 760 torr

1 X 10-10 torr

28 Mn on Ag

http://www.ieap.uni-kiel.de/surface/ag-berndt/images/leer-sml.gif

http://www.bbc.co.uk/radio4/today/reports/archive/science_nature/images/ibm.jpg

http://www.rhk-tech.com/hall/images/feo.jpg

http://www.fisica.uniroma2.it/infm/nanolab/HREELS1.jpg

http://www.cm.utexas.edu/white/images/skunk_hreels.jpgHREELS 2

http://nano.ivcon.org/images1/_tech/nano_sandia_mite.jpg

Requirements for Medical School

• 1 year of biology• 1 year of calculus• 1 year of physics• 2 years of chemistry

Requirements for Engineering

•Many engineering fields require at least 1 year of college chemistry

Requirements for Art History/Art Restoration

• At least 1 year of college chemistry