Many student submitted pictures and memes from their first semester of chemistry here at UT. Here are many of those submissions.
We WILL be using a different answer sheet on the Final. Read about the differences on the Green Answer Sheet page.
Here is a pdf of the Periodic Table Handout for Final
One more thing... there is NO curve on the final. Your score is your score.
THERMODYNAMICS
😀 is FUN!
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More Practice Problems for Thermodynamics
I had mentioned that there was a pdf of practice problems from an old textbook of ours. The pdf is below. The KEY will be active after the thanksgiving break.
Thermodynamics: Select Practice Problems | KEY
Did you notice? if you use OpenStax as a source, thermodynamics is split into two different chapters there. The first law (heat, work, energy) is in Chapter 5, while the second law (entropy, free energy, spontaneity) is in Chapter 16.
Upcoming Assignments on Canvas for Unit 4
LE23 Thermodynamic State Functions (due Tue, 11/1 by 9:30am)
LE24 First Law of Thermodynamics (due Tue, 11/1 by 9:30am)
LE25 Heat and Enthalpy (due Thu, 11/3 by 9:30am)
LE26 Calorimetry (due Tue, 11/8 by 9:30am)
LE27 Thermochemistry (due Tue, 11/9 by 9:30am)
LE28 Second Law of Thermodynamics (due Thu, 11/15 by 9:30am)
LE29 Calculating Entropy Change (due Tue, 11/15 by 9:30am)
HW10 - First Law & Calorimetry (due Tue, 11/15 by 9:30am)
LE30 Gibbs' Free Energy (due Thu, 11/17 by 9:30am)
HW11 - Second Law & Free Energy (due Tue, 11/22 by 9:30am)
| Type of Solid | Forces of Attraction | General Properties | Examples |
| ionic | ion-ion interaction | hard, brittle, high melting point, poor conductor of heat and electricity | NaCl, LiF, MgO, CaCO3 |
| covalent | Covalent bonds | hard, brittle, high melting point, poor conductor of heat and electricity | C diamond, C graphite, SiO2 (quartz) |
| molecular | dispersion, dipole-dipole, H-bonding | soft, low melting point, poor conductor of heat and electricity | Kr, CO2, H2O, C12H22O11 |
| metallic | metallic bonds | variable hardness and melting point, good conductor of heat and electricity | All metallic elements, such as Na, Mg, Fe, Cu |
Upcoming Assignments on Canvas for Unit 3
LE16 Lewis Structures (due Tues, 10/11 by 9:30am)
HW06b - Bonding (due Tues, 10/11 by 11:59pm)
LE17 VSEPR Theory (due Tues, 10/11 by 11:59pm)
LE18 Valence Bond Theory (due Thu, 10/13 by 9:30am)
HW07 - VSEPR & VB (due Fri, 10/14 by 9:30am)
LE19 Molecular Orbital Theory (due Tue, 10/18 by 9:30am)
LE20 Intermolecular Forces (due Thu, 10/20 by 9:30am)
LE21 Liquid Properties (due Thu, 10/20 by 9:30am)
LE22 Solid Properties (due Thu, 10/20 by 9:30am)
HW08 - Bonding Theories & IMF (due Sat, 10/22 by 9:30am)
HW09 - Liquids & Solids (due Tue, 10/25 by 5pm)
I just made this for you to use...
Hey, I was browsing the net for more VSEPR stuff (prettier anyway) and came across this:
University of Illinois - VSEPR Theory Help page
Pretty nice summary of VSEPR with 3D examples that you can rotate and look at. They refer to "electron regions" as "effective pairs". Instead of writing AX2E, they call it a 3-1 configuration (3 regions with 1 electron pair = bent and about 120° angle). Oh, and they also refer to bent, or angular as V-shaped. So the take home lesson is that there are other names and ways of presenting the SAME core knowledge. It is GOOD to see other takes on the same concepts.
- Dr. McCord
Learning Exercises (LE17-LE22) will take you through the rest of the bonding unit and also through the unit on IMFs (InterMolecular Forces).
Homework (HW07-HW09) is the graded portion of this unit. 81 questions spread over three homeworks. Remember to go through the LEs first, then conquer the homework.
Please remember to adhere to the University Student Honor Code. Integrity is so important, please keep this in mind during your all your studies and exams at the University (and life for that matter). - Dr. McCord
As a student of The University of Texas at Austin, I shall abide by the core values* of the University and uphold academic integrity.
* The core values of The University of Texas at Austin are learning, discovery, freedom, leadership, individual opportunity, and responsibility. Each member of the university is expected to uphold these values through integrity, honesty, trust, fairness, and respect toward peers and community.
Exam 2 material changed...
When I teach Boyle's Law I always think of this... Yes, it is an "old" reference, but it IS a true classic.
