Equations we need for midterm

[Sofia Q]

Hi guys, as I do homework problems in preparation for the midterm I can't help to notice that some of them require equations that we did not practice with, or in some cases, not mention at all... Will we be expected to use them still? Or should we mainly focus on the application of equations that Dr. Lavelle explicitly went over during lecture?

For reference, I was starting the practice problems of the 1D section of Quantum World, specifically 1D.3.

[Sunia Akaveka 4I]

I believe 1D.3 is not a part of our recommended homework problems. Thus, we will not be expected to reproduce problems outside of the recommended homework problems and what Dr. Lavelle covers in lecture. I hope this helps.

[305421980]

Additionally, all of the equations will be provided on the constants and equations paper provided on test day. There is a copy on the website.

[Julia Mazzucato 4D]

Equations we need for the midterm:

Unit 1 (HS Review)
Dilutions: (M_i)V_i) = (M_fV_f)
Percent yield: Actual/theoretical X 100
M = moles/liters

Unit 2 - Quantum
Photoelectric effect:
E=hv
E_photon - work function = KE_electron (energy of the photon minus threshold energy = kinetic energy of the ejected electron)
Atomic Spectra:
E=-hR/n²
v=-R[(1/n₁²)-(1/n₂²)]
De Broglie Equation: wavelength = h/p
Heisenberg Uncertainty (delta p)(delta x) >= h/4pi

that's pretty much all the formulas. the rest is conceptual, just knowing how to draw LDS, do quantum numbers, electron configurations, periodic table trends, formal charge, stoichiometry, etc.)

[Elizabeth Harty 1A]

is momentum mass times velocity?

[sarahsalama2E]

Yes it is

[Jorge Ramirez_4H]

How do we covert kj into J?

[105289321]

Divide the value in kj.mol by Planck's constant and then multiply by 1000 to convert from kj to j