Search found 36 matches

by Will Pham 2I
Sun Nov 22, 2020 11:54 pm
Forum: Administrative Questions and Class Announcements
Topic: Problem of viewing the lecture
Replies: 9
Views: 40

Re: Problem of viewing the lecture

It's possible you may have to use the UCLA VPN or you got logged out of CCLE.
by Will Pham 2I
Sun Nov 22, 2020 11:53 pm
Forum: Administrative Questions and Class Announcements
Topic: Midterm 2 Scores
Replies: 28
Views: 135

Re: Midterm 2 Scores

Hopefully sometime around Wednesday of Week 8 if it takes the same time as the last midterm, but if not, we should just be patient and let Lavelle and the TA's enjoy their holiday too
by Will Pham 2I
Sun Nov 22, 2020 11:51 pm
Forum: Student Social/Study Group
Topic: Studying From Home
Replies: 91
Views: 291

Re: Studying From Home

It's definitely been super hard focusing at home. I try to work with the pomodoro technique, which means you study in intervals of 25 minutes with a 5 minute break; I find this helps keep me productive because I definitely get very distracted if I work for longer than that. I also like to set a few ...
by Will Pham 2I
Sun Nov 22, 2020 11:45 pm
Forum: Student Social/Study Group
Topic: Exercising Our Minds and Bodies
Replies: 92
Views: 269

Re: Exercising Our Minds and Bodies

I try to lift weights and run as often as I can, but skateboarding is definitely my favorite way to exercise.
by Will Pham 2I
Sun Nov 22, 2020 11:43 pm
Forum: Student Social/Study Group
Topic: How to relax after midterms
Replies: 54
Views: 114

Re: How to relax after midterms

Personally, I take a day or two completely off from school (usually the weekend) where I just sit and do nothing but sleep in and watch shows. Eating some good food always helps.
by Will Pham 2I
Sun Nov 15, 2020 12:49 pm
Forum: Student Social/Study Group
Topic: Constants/Equations Sheet
Replies: 5
Views: 23

Re: Constants/Equations Sheet

As of what we know right now, I believe the periodic table is all we get. The periodic trends and other rules are concepts that we are being tested on.
by Will Pham 2I
Sun Nov 15, 2020 12:47 pm
Forum: Student Social/Study Group
Topic: Drawing Lewis Structures
Replies: 4
Views: 29

Re: Drawing Lewis Structures

Joseph Hsing 3H wrote:We will probably be given a couple of choices of Lewis structures and then asked what is the correct one. Since it's on CCLE, there won't be a drawing feature I'm guessing.

Wait is the 2nd midterm also all multiple choice?
by Will Pham 2I
Sun Nov 15, 2020 12:46 pm
Forum: Student Social/Study Group
Topic: grade worries
Replies: 100
Views: 618

Re: grade worries

I try not to constantly worry about my grades as it stresses me out, but obviously I can't just avoid it and find myself worrying about them a lot. It helps me to just take the course one step at a time, thinking that one test grade won't kill my grade, there's still more to come.
by Will Pham 2I
Sun Nov 15, 2020 12:42 pm
Forum: Administrative Questions and Class Announcements
Topic: Lecture Video Recording
Replies: 3
Views: 19

Re: Lecture Video Recording

I also agree, it would be great if they could could have two cameras perhaps that they can easily switch, as I find that the time it takes to refocus often distracts from the lecture content and occasionally misses a detail. I am very appreciative of what they are doing though, it's very refreshing ...
by Will Pham 2I
Sun Nov 15, 2020 12:17 pm
Forum: Administrative Questions and Class Announcements
Topic: 14B Class Structure - Also Recorded Videos?
Replies: 4
Views: 39

Re: 14B Class Structure - Also Recorded Videos?

Hi, I think Dr. Lavelle's answer on this other thread might be helpful for you.

viewtopic.php?t=67067
by Will Pham 2I
Sat Nov 14, 2020 2:16 pm
Forum: Student Social/Study Group
Topic: Participation
Replies: 25
Views: 170

Re: Participation

alebenavides wrote:for the end of week 6 are we supposed to have 25 or 30 posts im not so sure?

We're supposed to have 30 points for Week 6
by Will Pham 2I
Sat Nov 14, 2020 2:03 pm
Forum: Administrative Questions and Class Announcements
Topic: Question for Students about High School Chem
Replies: 25
Views: 107

Re: Question for Students about High School Chem

I took chem my junior year and do recognize most of the material, besides the more in-depth stuff relating to electrons in photoelectric effect. It's still super helpful that Dr. Lavelle reviews everything from the start/fundamentally.
by Will Pham 2I
Sat Nov 14, 2020 11:50 am
Forum: Administrative Questions and Class Announcements
Topic: Midterm #2 Content
Replies: 4
Views: 33

Re: Midterm #2 Content

Yes, that's about the start of where the content for this midterm is.
by Will Pham 2I
Fri Nov 13, 2020 9:27 pm
Forum: Administrative Questions and Class Announcements
Topic: Subtitles
Replies: 4
Views: 28

Re: Subtitles

I also noticed that my other classes had the option for subtitles. Maybe this class uses a different formatted video or something, but it would be super helpful if we could get Dr. Lavelle to add them.
by Will Pham 2I
Fri Nov 13, 2020 9:25 pm
Forum: Student Social/Study Group
Topic: Conceptual Questions Resource?
Replies: 8
Views: 66

Re: Conceptual Questions Resource?

I'm also seconding Organic Chemistry Tutor. They've helped me understand so many topics over the years, and their practice questions are very useful.
by Will Pham 2I
Fri Nov 13, 2020 9:20 pm
Forum: Lewis Structures
Topic: Chemical Names
Replies: 9
Views: 32

Re: Chemical Names

I would just stick to what Lavelle has taught/gone over in his lectures, so it's probably safe to say he won't be testing on nomenclature.
by Will Pham 2I
Wed Nov 04, 2020 12:42 am
Forum: Trends in The Periodic Table
Topic: Effective nuclear charge
Replies: 4
Views: 18

Re: Effective nuclear charge

https://www.youtube.com/watch?v=hwM4mCj8Oh8

This was a pretty concise video I found that helped a lot with my understanding of effective nuclear charge. Hope this helps!
by Will Pham 2I
Wed Nov 04, 2020 12:24 am
Forum: Electron Configurations for Multi-Electron Atoms
Topic: Formation of Ions
Replies: 5
Views: 46

Re: Formation of Ions

I believe it has to do with the amounts of protons and electrons being added to the atom as you get to the d-block. Before electrons are added in the d-block, the 4s orbital is a lower energy than the 3d orbital, and that is why electrons are added to it first. But as electrons start to be added to ...
by Will Pham 2I
Sun Nov 01, 2020 9:45 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: Electron Configuration For Calcium
Replies: 7
Views: 56

Re: Electron Configuration For Calcium

I believe that after atomic #20, 4s would be written after 3d, but for K and Ca, 4s is filled first.
by Will Pham 2I
Sun Nov 01, 2020 9:30 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: How to Calculate Ground State
Replies: 3
Views: 20

Re: How to Calculate Ground State

Just to add on, you're basically counting the number of electrons present in the excited state, and the number of electrons should match the atomic number of the ground state element.
by Will Pham 2I
Sun Nov 01, 2020 9:29 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: Noble Gas Configuration
Replies: 13
Views: 72

Re: Noble Gas Configuration

I believe you have to write it from the previous noble gas.
by Will Pham 2I
Thu Oct 22, 2020 11:47 pm
Forum: Heisenberg Indeterminacy (Uncertainty) Equation
Topic: h/4pi
Replies: 7
Views: 60

h/4pi

If we know the value of h/Planck's constant as 6.626 x 10^-34 J*s and the value of pi rounded as 3.14, why is h/4pi always written if it is a constant?
by Will Pham 2I
Thu Oct 22, 2020 11:09 pm
Forum: Properties of Electrons
Topic: Electrons emitting photons
Replies: 3
Views: 33

Electrons emitting photons

Do electrons emit multiple photons when coming down from a higher energy level to the ground state, or only one photon per electron? And if it's multiple, is there a limit to the number of photons emitted?
by Will Pham 2I
Thu Oct 22, 2020 9:39 pm
Forum: DeBroglie Equation
Topic: Smallest Measurable Wavelength
Replies: 7
Views: 53

Re: Smallest Measurable Wavelength

Hi, so I know Lavelle said a wavelength less than 10^-15 cannot be observed, but is there an explanation/reasoning for this? Why exactly 10^-15?
by Will Pham 2I
Sun Oct 18, 2020 12:53 pm
Forum: Photoelectric Effect
Topic: EM radiation neither absorbed nor emitted by atom
Replies: 7
Views: 37

Re: EM radiation neither absorbed nor emitted by atom

Hey Sami, thanks for your reply and the article, it's a good one to come back to. I actually rewatched Lavelle's lecture and he said that wavelengths that weren't absorbed actually pass through the atom. Still trying to see how this information works with the basics physics info that materials abso...
by Will Pham 2I
Sun Oct 18, 2020 12:43 pm
Forum: Administrative Questions and Class Announcements
Topic: STEP UP SESSIONS
Replies: 3
Views: 19

Re: STEP UP SESSIONS

They're supposed to last 2 hours, but sometimes they can end a bit earlier, and the UA stays for the remaining time to ask questions. But you can join and leave at any time; you don't have any obligation to stay.
by Will Pham 2I
Sun Oct 18, 2020 12:38 pm
Forum: Administrative Questions and Class Announcements
Topic: Midterm Exam Format
Replies: 14
Views: 89

Re: Midterm Exam Format

Does anyone know if we would need to submit photos of our work during the exam or not?
by Will Pham 2I
Sun Oct 18, 2020 12:36 pm
Forum: Quantum Numbers and The H-Atom
Topic: Energy Levels
Replies: 8
Views: 75

Energy Levels

I was a bit confused from the lecture, because Dr. Lavelle said if the energy that is being transmitted to the electron does not exactly match the energy of the higher energy level(s), then the light would not be absorbed. However, a google search said "All the photons with energy equal or high...
by Will Pham 2I
Sun Oct 18, 2020 12:29 pm
Forum: Quantum Numbers and The H-Atom
Topic: Emitting a Photon
Replies: 9
Views: 51

Emitting a Photon

Hi, I was just wondering if an atom only emits a photon once the excited electron reaches all the way to the ground state, or if photon(s) are emitted while it is still coming down energy levels on the way to the ground state?
by Will Pham 2I
Thu Oct 08, 2020 3:25 pm
Forum: Empirical & Molecular Formulas
Topic: Writing Formula Order
Replies: 6
Views: 43

Writing Formula Order

Hi, I was wondering how we determine the order for the elements when writing out a formula. For example, if there is C, H, N, and O in a compound, which letters would come first and why.
by Will Pham 2I
Thu Oct 08, 2020 11:20 am
Forum: Administrative Questions and Class Announcements
Topic: Accessing the E-textbook [ENDORSED]
Replies: 58
Views: 6364

Re: Accessing the E-textbook [ENDORSED]

For anyone who ordered their textbook from the UCLA store and already received it, was it a physical copy? and if so, did it include an access code for sapling and/or the e-book? No, the textbook is not a physical copy. I just received my order and they just give an envelope with the code to Saplin...
by Will Pham 2I
Thu Oct 08, 2020 11:17 am
Forum: Molarity, Solutions, Dilutions
Topic: What does mmol stand for?
Replies: 30
Views: 244

Re: What does mmol stand for?

A mmol stands for a millimole, which is one-thousandth of a normal mole.
by Will Pham 2I
Wed Oct 07, 2020 9:53 pm
Forum: Significant Figures
Topic: intermediate calculations with sig figs
Replies: 8
Views: 48

Re: intermediate calculations with sig figs

I've been taught to conserve the full numbers and not round until the very end for the most accurate answer, then round sig figs as the very last step for the last number.
by Will Pham 2I
Wed Oct 07, 2020 11:52 am
Forum: Student Social/Study Group
Topic: E-book and Sampling Link
Replies: 13
Views: 144

Re: E-book and Sampling Link

Mine was a little bit back-ordered but finally came. I have the free trial right now but I'm not sure where to put the code to get the online book. Hi! I was also on the free trial and just received a code. When you first enter sapling, there should be a banner at the top that says something like '...
by Will Pham 2I
Wed Oct 07, 2020 11:29 am
Forum: Limiting Reactant Calculations
Topic: Sapling Homework Question 10
Replies: 16
Views: 224

Re: Sapling Homework Question 10

Vanessa Perez wrote:Does anyone know if we get deducted points per every attempt we take on a question on sapling? Or do we get 100% even if we did some questions more than once as long as we get it correct?

You can attempt the questions as many times as you want, and still get 100% as long as you get it correct.
by Will Pham 2I
Wed Oct 07, 2020 11:27 am
Forum: Administrative Questions and Class Announcements
Topic: Step Up Sessions
Replies: 71
Views: 4413

Re: Step Up Sessions

Are “step up sessions”, “UA peer learning”, and a “UA session” all the same resource with just different names for the resource? I just want to clarify because I see a lot of similar terms for these sessions. Yes I think these all reference the same thing because the document labelled "Peer Le...

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