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The Final Exam

The CH141 exam will be on Monday, 12/17 at 1:30 -4:30 PM.   We will use the same Keyes first floor classrooms for the exam.   You may work for the entire 3 hours, but the exam is expected to take most students 120 min.  The exam will cover all class and laboratory materials and we will use the same format as the hour exams.   Allowed exam items are pens/pencils and a course-approved calculator. You will be provided with a periodic table and equation sheet.   You may bring snacks and a water bottle.

There will be an optional review session on Sunday, 12/16 in Keyes 105 at 4 PM.

There will also be office hours from 1-2pm Monday, 12/10 through Friday, 12/14.  On Monday and Tuesday Prof. Madison will be in the Chem Help Center (Keyes 104). On Wednesday through Friday, come to her office (Keyes 314).

Practice exams are posted on our web page.  The Final Exam Equation Sheet is available as well.


Making White Light – materials research for a better world

Incandescent bulbs are one of the most energy-inefficient products in daily use,” Joanna McKittrick says. Touch a regular old 100-W light bulb after it’s been lit for a few minutes, and you’ll see what she means.

Less than 5% of the electrical energy that goes into the tungsten filament inside is converted to visible light, explains McKittrick, a luminescent materials specialist at the University of California, San Diego. The rest is wasted as heat that, should you follow our instructions, will burn your fingers.

Incandescents “basically haven’t changed since Thomas Edison invented them” about 140 years ago, she says.

Discovered via computational screening for new phosphors, this compound (above) is the first member of the previously unknown Sr-Li-Al-O crystal family. Black outline = unit cell. Gold = Sr. Red = Li. Green = Al. Blue = O.

Bulbs that contain light-emitting diodes (LEDs), on the other hand, can produce the same amount of white light but barely feel warm to the touch. That’s because LEDs are more energy efficient. A 15-to-20-W LED can produce the same brightness as a 100-W incandescent, roughly 1,500 lumens. LEDs are also less fragile and can last tens of thousands of hours longer. Nevertheless, these modern alternatives currently account for less than 10% of lighting worldwide, according to data from the U.S. Department of Energy.

more …

Solids and Liquids – Making the Oceanographer Happy

Reading chapters 11 and 13

Intermolecular Forces:
London, dipole-dipole, hydrogen bonding, ion-dipole
Comparison of forces
Properties of  Solids, Liquids, and Gases
Phase changes
Heating curves

Resources:   hydrogen boding in biological structures,  Chapter 11 Images 2018, Chapter 11 Notes, Chapter 13 Slides 2018, Chapter 13 notes




Play with this! Geometry Builder


Week XI – Advanced Bonding – King

Reading:  Chapter 9

Homework:  Please see Mastering Chemistry

 Lecture Outline:

Molecular Shapes and VSEPR
Bond Strength and Energies
Valence Bond Theory
Molecular Orbitals  – Wave Example ISimple Wave II

Resources:  Chapter 9 Slides, Chapter 9 Notes 2018Chemical Education Molecule Viewer

Why we care about the shapes of Molecules –

Week X – Bonding – King

Reading:  Chapter 8

Homework:  Please see Mastering Chemistry

 Lecture Outline:

Ionic Bonding
Lattice Energies
Covalent Bonding
Lewis Structures
Bond Polarity and Electronegativity

Resources:  Chapter 8 notes 2018,  Chapter 8 slides

Viewing Molecules:   Simple – ethanol, Complex – carbonic anhydrase


Week IX Periodic Trends – King

Reading:  Chapter 7

Homework:  Please see Mastering Chemistry

 Lecture Outline:

Periodic Table
Effective Nuclear Charge
Atom and Ion Size
Ionization Energy
Electron Affinity

Resources:   Web Elements , Chapter 7 Notes 2018, Chapter 7 Slides

Week VIII – Atoms (King)

Reading:  Chapter 6


Homework:  Please see Mastering Chemistry

 Lecture Outline:

Energy is Quantized
Line Spectra and the Bohr Model
Wave nature of matter
Atomic Orbitals
Orbital Shapes
Electronic Configurations

 Resources:   Chapter 6 ImagesBohrSchrodinger,
King Chapter 6 Notes- ABohr Calcs, Uncertianty,  King Chapter 6 Notes- B


Second Exam and Review Session

Review session for the second exam is on Tuesday at 8 PM in Keyes 105.

Reminder: Exam 2 is Thursday, Oct. 25!  Exam Locations: Keyes 105, 102, 103, and 114.

A practice exam can be found on the “Sample Exams” section of the course website.  

Exam information: Exam 2 will be held on Thursday, Oct. 25 from 5:00-7:00 pm. You may work for the entire 2 hours, but the exam is expected to take most students 60 min. The exam will cover the class material from chapters 1-5, 10, 20.1, and 20.2 and laboratory material from experiments 1-6.  Read experiment 6 even if you have Friday lab.   It is a excellent review of thermochemistry.   Allowed exam items are pens/pencils and a course-approved calculator. You will be provided with a periodic table. There will be an optional review session on Tuesday, 10/23 in Keyes 105 at 8 PM.

Equation Sheet for Exam #2: Exam 2 Equations and Constants

Week VI – Gases

Reading:  Chapter 10

Lecture Outline:
Using Gas Laws
Partial Pressures
Kinetic Molecular Theory
Effusion and Diffusion
Real Gases
Resources:  CO2 in the atmospherechapter 10 imagesGas Demo 1 (V vs P) 2016, Gas Simulation, King Chapter 10 Notes 2018,

Gas Properties

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