Office Hours

CH301 S22

Office Hours

All our office hours are going to be via Zoom for this semester. Times are listed below. The official Zoom links are available on Canvas under the Zoom menu. I've included the links below as well for the meetings. These are also recorded and the recordings are listed on the zoom recordings page (same as classtime) in canvas.

Below our zoom meeting links are the Office Hour Notes that we created during the zoom meeting.

You can also ask short questions right after class. We can answer questions at the front of the classroom before the next class arrives or even walk out into the Welch hallway to answer questions.

Dr. McCord

Tuesdays 11am - 12pm
https://utexas.zoom.us/j/91949921381

Office Hour Notes

Tue 5/10 practice final about 3 problems and T vs ∆T.

Tue 5/03 HW13 numbers 28 and 30. Other conceptual stuff as well.

Tue 4/26 a lot of Hess's Law discussion/examples HW13 numbers 11, 20, 28. Then 3rd Law chat plus the G = H - TS definition for free energy and thinking about sign and ∆S of the univ, sys, and surr for common simple things like evaporating water.

Tue 4/19 some exam3 questions plus number 3 on HW13.

Tue 4/12 - no students -

Tue 4/05 fielded many questions about concepts like Network vs Covalent solids, and more... a full hour was used.

Fri 4/01 general exam strategies and preparation. π-bonding and π-antibonding, plus how to assess overall dipole moment and the concept of polarity.

Tues 3/29 only 16 minutes... one question about sp hybrid (ethyne) example I did in class on Monday 3/28. I explain how we are hybridizing to ultimately make a molecule, not just an atom.

Tues 3/22 Exam 2 questions: Mg atom with 546 nm photon, the Verizon 5G question - the GHz one, and comparing microwave to UV radiation (energy, wavelength, frequency)

Tues 3/08 info on Rydberg equation(s), HW07 #13 - N2O resonance structures, potential E diagram and particle-particle attractions, more on line structures, Coulomb's Law - related to Crystal Lattice energies, discussion on wavefunctions (ψ and radial dist plots - nodes), also relate particle-in-a-box to wavefunctions.

Tues 3/01 HW05 9, work function = ionization energy, 21 1/2 full and completely full orbital sets, size of cations and anion vs original element radius (Chembook 3.10), HW04 9 E=hν

Tues 2/22 HW05 concept behind 1 and 2, HW04: I show how to work numbers 7, 17, and 19.

2/15 - no students, nothing to show

Tues 2/08 HW03 which R?, 17, extensive vs intensive properties, 9, 13, 11, all the gas laws in one equation

Tues 2/01 HW02 6, 8, 14, STP vs SATP, counting by volumes, 25