Chemistry Languages

Definition and examples

What is happening to the polar ice?

Cryosphere (NSIDC, PSC, NASA, NOAA, GCRP, EPA Data and Figures)

How much is the climate changing?

Energy Budget, Radiative Forcing, and Temperature (IPCC, NASA, NOAA, GCRP Data and Figures)
Climate indicators (IPCC, NASA, NOAA, GCRP, EPA Data and Figures)
Climate Futures Infographic (IPCC 2021 pdf)

How much does air weigh?

Laboratory Glassware
Pumping up the bottle (prelab 0:53 Movie)
Using a tire gauge (prelab 0:35 Movie)

No Class - Labor Day

How are gas volume and pressure related?
How are gas volume and temperature related?

Using a syringe and scale (prelab 0:30 Movie)
Changing temperature (prelab 2:14 Movie)
Significant digits (Figures)

Kinetic-Molecular Theory of Gases
Pressure and number of particles (Animation)
Properties of gases (Figures)
Gas properties (link to PhET simulation).
Gas velocity (Figures)

How are the atoms connected within atmospheric gas molecules?
What are the shapes of atmospheric gas molecules?

Lewis Dot and VSEPR (Figures)
Greenhouse Gas Molecules Interactive Models (jsmol)

Valence Shell Electron Pair Repulsion (VSEPR) Interactive Models (jsmol)
VSEPR Molecular Shapes (link to PhET simulation).
     Choose model option then drag atoms or lone pairs to the center atom and see the lowest energy shape.
Lewis Dot and Formal Charge (Tutorials)

Which gases absorb infrared waves?

Infrared Spectra of Gases in Balloons (prelab Figures and Movies)

Greenhouse Gases and Electronegativity (Figures)
How does an infrared spectrum of CO₂ change with concentration? atm or mm Hg (Movie)
Do CO₂, N₂O, CH₄, CF₃CH₂F and H₂O absorb the same frequency of infrared radiation? (Movie)
Infrared Spectra of Gases in Balloons (Data)

Molecular Bond Vibrations (Animations)
Resonance Frequency and Energy Coupling (1:50 Classic video)
Carbon dioxide absorbs infrared radiation (1:36 Video)
VSEPR, Electronegativity, Polar Molecules and the Greenhouse Effect (Tutorials)

What do atmospheric concentrations tell us about sources and sinks of greenhouse gases?

Gas Concentrations, Global Warming Potential, and Atmospheric Lifetime (table, jsmol, Movies)
Oxygen Concentrations (Scripps)
Sources and Sinks (Figures)

Methane Supercharges Climate Change, Living on Earth, September 2022 (Audio)
Methane, The Other Important Greenhouse Gas, C&E News, October 25, 2021 (pdf)
Cows and methane (Video)
Permafrost and methane (Video)
No laughing matter: nitrous oxide - another climate enemy (Video)
Are we stuck with cement? (link to The Outline, June 2018)
Can planting trees solve the climate crisis? BBC CrowdScience, January 2024 (20:00 Audio)

What happens when you breathe into water?

What happens when you breathe into water? (Movies)

How do we balance the source and sink equations?

Balancing Chemical Equations (Figures)
Balancing Equations (link to PhET simulation)

Which recipe gives the most precipitate?

Lead nitrate plus potassium iodide (prelab 0:52 Movie)
Using a chemical reagent bottle (prelab 0:12 Movie)
Limiting Reactant (Figures)
Limiting Reactant Spreadsheet.xlsm (Instructor Excel template)

How much do sources and sinks contribute to rising greenhouse gas concentrations?
What are your personal contributions to CO₂ emissions?

Moles (Figures)
Periodic Table, click image to toggle zoom
Chemical Calculations (reference)
Unit Conversions (examples for writing calculations in one line)
Historical CO₂ emissions by fuel type (animations)

Demo: How much carbon dioxide is a mole?

A mole of carbon dioxide (7:44 Video)

How much carbon dioxide do you exhale in a year?

Available equipment (prelab)

How do chemists represent the structure of molecules?

What is Gasoline?
Virtual field trip to a gas station near Los Angeles (1:08 Movie starring Brock Spencer)
Trip to a gas station (1:18 Zoolander video clip)
Gasoline (Figures)
Lessons from the warning signs at gas stations (Chicago Tribune) or pdf copy
Combustion of ethanol vapor (0:54 Movie)

Chemical Formulas
Chemical Formulas (reference)
Hydrocarbon Formulas (Figures)
What molecule is C₅H₁₂? (jsmol)
What molecule is C₅H₁₂O? (jsmol)
How do Chemists Represent the Structures of Organic Molecules? (jsmol)

How much heat is released upon fuel combustion?
Fuel Calorimetry

Heat (Figures)
Tinder Chips (Movie), May 2014
Heat Capacity and Water (link to USGS)
Specific Heat (link to Concord Consortium simulation)

Why do we make so much CO₂?

Bond Energies (Animation)
Bond Energies (Figures)

What functional groups are in foods?

Functional Groups (Figures)
Food (Figures)

Which household chemicals react the same way?

Testing (prelab 0:45 Movie)
pH (Figures)

Can "like-attracts-like" be used to rank polarity?

Hydrophobic Materials (Figures)

Water is Polar (1:14 Movie)
Polar/Nonpolar Disk Game (3:22 Movie)
Superhydrophobic Materials (Movies)

How are functional groups, molecular sizes, and boiling points related?

Intermolecular Forces (Figures)

States of Matter Review (Figures)
Intermolecular Attractions and States of Matter (link to Concord Consortium simulation)
States of Matter (link to PhET simulation)
Polar Molecule Review (Figures)
Boiling Point Data (Movie)
Intermolecular Forces (Tutorials)

What is Hydraulic Fracturing?

Hydraulic Fracturing (Figures)
Ethane and the Plastics Boom, NPR Morning Edition, November 2019 (Audio)
Fracking boom tied to methane spike in Earth's atmosphere, National Geographic, August 2019 (pdf)

Midterm

Synthesis and Analysis: Is my Aspirin Pure?

First day
Aspirin (Figures)
Suction Filtration (prelab 2:26 Movie)
Color test for salicylate (prelab 1:00 Movie)

Second day
Titrations (Figures)
Titration using a buret (prelab 4:13 Movie)
Filling a buret (prelab 0:33 Movie)
Reading a buret (prelab 2:03 Movie)
Measuring cup squeeze dispenser (prelab 0:22 Movie)
Loading infrared samples (prelab 3:55 Movie)
How do vibrations change with mass and force constant? (Demonstrations)
Infrared Spectra of Reference Compounds (pdf)

Third day
Weighing by difference (prelab 1:53 Movie)
Loading NMR samples (prelab 0:35 Movie)
How do frequencies change with magnetic field and shielding? (Demonstrations)
NMR Spectra of Reference Compounds (pdf)

Fourth Day
Aspirin (Figures)
American Chemical Society (search link) or (Click here for off-campus Beloit login)
Aspirin storage (link to MedlinePlus)
Color test for salicylate (prelab 1:00 Movie)

Why have metals been used through the ages? (Logan Museum)

Properties of Metals (Movies)

Alternative Fuels

Turning Algae into Energy (Movie), Los Alamos NationalLab , May 2013
Wind to Hydrogen (Movie)
Artificial Leaf (Movie)
Energy Density (Table)
Fuel Cells (Figures)

How should we make light?

1. "A brilliant new approach," The Economist, March 19, 2009
2. "Green Promise Seen in Switch to LED Lighting," The New York Times, May 30, 2009
3. "Europe's Ban on Old-Style Bulbs Begins," The New York Times, September 1, 2009
4. "Tiny semiconductor crystals, called quantum dots, enable new forms of energy-efficient lighting," The Economist, March 4, 2010
5. "LED Lighting: Blue + Yellow = White" and "The Light bulb that really is a better idea," IEEE Spectrum, January 2011
6. "Seeing the Light: LED technology moves into the mainstream and delivers improved efficiencies," Signage Solutions, Nov/Dec 2011
7. "What it takes to change all the street lights in New York City," Greenbiz, April 17, 2013 and October 29, 2013
8. "This Little LED of Mine," The New York Times, November 2, 2013
9. "Efficient, useful blue-light LED draws Nobel Prize in physics," CNET, October 7, 2014
10. "Benefits and Disadvantages of LED Lighting," LED Technology, 2012, and Luminanz Ltd, 2011, and Pulse, 2015
11. "Science advances in matching LED lighting to horticultural needs ," LEDs Magazine, 20 Sept 2016
12. "LED Streetlights Are Giving Neighborhoods the Blues," IEEE Spectrum, 22 Sept 2016
13. "The search for better white light," C&E News, November 19, 2018
14. "America's Light Bulb Revolution," The New York Times, March 8, 2019
15. "Household lighting consumption driven by bulb choice and bulb count," U.S. Energy Information Administration, February 25, 2019
16. "White House to Relax Energy Efficiency Rules for Light Bulbs," The New York Times, September 4, 2019
17. "The History of Lighting," Traditional Building, May 13, 2020
18. "Old-Fashioned, Inefficient Light Bulbs Live On at the Nation's Dollar Stores," New York Times, January 23, 2022
19. "Biden flips the switch on Trump's incandescent light bulb plan," CNN, April 26, 2022
20. "LED Headlights," Hella Tech World, 2017
21. "LED Basics," US Department of Energy
22. "Savings Calculator," Bulbs.com

Changing Light and Energy Sources (Figures)

Light (Figures)
Light from Solids (Movies)
Chemical Light (Movies)
Glowsticks, C&E News, October 25, 2021 (pdf)

Blackbody Radiation (Movies)
Blackbody (link to PhET simulation)
The Incandescent Bulb (Movies)
Why does a light bulb burn out? (pdf), INVSEE, Arizona State University (0:16 Movie)
An incandescent light bulb has been burning for 100 years: Mythbusters Visit Livermore (0:54 Video) 2006
Discovery/Science Channel How It's Made: The Incandescent Bulb (5:00 Video)
The origin of quantum mechanics: blackbody radiation and the light bulb (4:19 Video)

Color from Electronic Transitions (Movies)

LED Quantum Dots (7:05 Video)
Benefits of LED Lighting (2:17 Video)
LED Application Notes (pdf)
Transportation Lights (Movies)

How can you identify different incandescent, atomic, or semiconductor sources of light?

Three Types of Lighting (Movies)
Absorption and Emission Spectra of the Elements (Movies)
Lab Data (Movies)

Which elements in the periodic table are metals?

Electrical Conductivity of the Elements (Movies)

What is the net ionic equation?

Ions (Figures)
Lab Data (Movies)

How can we represent solids?

Bonding types (Table)
Covalent, Ionic, Metallic Solids (Figures)
Unit Cells (Figures)

How are structure and properties of solids related?

Solid State Model Kit (Movies)
Interactive Unit Cells (jsmol)
Unit Cell Problems (jsmol)
Structure & Properties (Movies)

What controls the properties of elements?

Periodic properties (Figures)

How can you get a specific color of light from a solid?

LEDs and periodic properties (Figures and Movies)

The Man Who Lit Up the World (9:59 Video) 2010
LED Quantum Dots (7:05 Video) 3/3/2010
Miami Tower Revitalized (3:36 Video) 12/11/2012
London Tower Bridge Diamond Jubilee (1:52 Video) 6/4/2012
New York Empire State Building's colorful new look (3:22 Video) 1/1/2013
San Francisco Bay Bridge Lights (3:52 Video) 3/5/2013
Confederation of Danish Industry, Copenhagen (3:22 Video) 10/3/2013
Banco de Credito del Peru (BCP) building in Lima (4:14 Video) 7/15/2014
LED Filament Bulbs (1:33 Video) 1/26/2015
Empire State Building Light Show with music by the Grateful Dead (4:40 Video) 7/4/2015
Ketra Natural Light (2:26 Video) 2017

Periodic Properties and LEDs

Multimeters (Figures)

Project Design: Is my soil contaminated? Lead in soil

The background readings are in chronological order.
Checking only the first few will give an out-of-date picture but the older ones do provide context.
Background Readings and representative figures

Search Wisconsin Historical Society records and Wisconsin Assessor Records
(We are in Rock County. Type address into the search box).

National Lead Company and Ethyl Corporation Advertisements, 1910-1950

Lead Use in 1985

Collect Soil Samples

Preparation of Lead Samples and Standards
Atomic Absorption Spectroscopy of Lead Samples & Standards
NO CLASS THANKSGIVING
Atomic Absorption Spectroscopy of Lead Samples & Standards
Writing a report: Lead in soil

Example data (Figures)