CHEMISTRY COMMUNITY

Winzel Payumo 1B

I honestly prepared for the worst, so seeing that exam was a huge relief! I found the questions fair and the time allotted was a lot better than 14A's final. I try not too be overconfident since I do worse when I am, but the exam was well-constructed!

Winzel Payumo 1B

Last quarter, our final grades were released about a week after we took the final, so I think it'll take the same time!

Winzel Payumo 1B

I'll be taking physics 5a, bmd res 5ha, and chem 14bl this summer, and will look for local volunteering opportunities! I got my second dose of the COVID vaccine last week, so I feel safe when it comes to going back to volunteering :) I would still be precautious just in case though!

Winzel Payumo 1B

Giselle_zamora_1L wrote:Im taking physics 5A over the summer

Same! Which lecture are you enrolled in?

Winzel Payumo 1B

Although Dr. Lavelle never explicitly said it for this exam, I still think they'll be a part of our final, or at least would be very similar! It has been the trend for 14A and 14B, and if you look at his Exam Schedule document on his website, he did say exams will include homework question from the ...

Winzel Payumo 1B

I know it's supposed to be due tomorrow midnight, but since the website will be down for the final tomorrow, I'm not sure what time the website will open again, so I'm finishing everything today :) You can definitely still finish tomorrow, and I wouldn't worry if the website somehow stays close tomo...

Winzel Payumo 1B

I've been waking up an hour earlier than I'm supposed to because of this! Sleep is really important when it comes to performing well on tests, and since I knew it would take me a while to adjust to time changes, I started changing the time I wake up really early just for the final HAHA

Winzel Payumo 1B

My past TAs always say not to put anything until after they check our papers/we start the test. You can do anything with your sheet after that, so I recommend just writing everything down at the beginning when you start your test, which is still better than forgetting it halfway through the test :) ...

Winzel Payumo 1B

I can't even destress after our final tomorrow since it's my first final this quarter out of four. I have finals on Sunday, Monday, Wednesday and Thursday, and group tests that would probably take place on Thursday (so two tests) and Friday ahaha pain :)) I will destress after my finals by avoiding ...

Winzel Payumo 1B

You’d have to wait for the entire reaction to finish, which means that you’d have to wait for the slowest one to finish, hence why it would be the determining factor.

Winzel Payumo 1B

I deal with burnouts especially since the pandemic started, and using a planner helped me a lot to overcome them! I’ve tried physical journals, but they never worked for me, so if that’s the case for you too, I recommend digital ones! I use Notion and it’s life changing. Try to plan things out while...

Winzel Payumo 1B

I am planning to take Chem 14C, LS7B, LS23L, Psych 100A, and might try to enroll in Ling 1, although the fact that its 100 spot waitlist is closed may stop me from doing that HAHA. I'm not too disappointed with that since the four classes I'm planning to take require a lot of my time and attention,...

Winzel Payumo 1B

Definitely chemical equilibrium! I hated it when I took AP Chemistry since I was doing it based on memorization, but I understand the topic well now and I realized that some common sense helps a lot HAHA

Winzel Payumo 1B

For 14A final, the distribution was based on how much time we spent on a topic, so I’m assuming it’d be the same for this final.

Winzel Payumo 1B

Step ups are recommended for people who want to go through the basics of the topic, while the workshops can be quite more complex, and I honestly found UA worksheet questions more complex than textbook problems. Both are great, but the pace and complexity are different between the two :)

Winzel Payumo 1B

My comfort series are pretty much any series by Rick Riordan, and my ultimate favorite book is Simon vs the Homo Sapiens Agenda!

Winzel Payumo 1B

Try refreshing or logging into a different device or a private tab, and if that doesn't work, let your TA know about it!

Winzel Payumo 1B

Absolutely doing EVERY textbook problem assigned, preferably beyond too, helped me so much for the final, and I'm trying out searching up more complex problems to make sure I truly understand the topic :)

Winzel Payumo 1B

I honestly thought I did better than the score I got, but still not too bad! I'm not too scared either since I pretty much had the same combined midterm scores for Chem 14A and 14B and ended with the grade I was aiming for :) Hoping for the same outcome!

Winzel Payumo 1B

I think it's fine to do that since this website is really for us to understand chemistry concepts better, so posting a 14A question shouldn't be a problem. I think you should just indicate that you are aware of the fact that you're asking a 14A question just to be safe :)

Winzel Payumo 1B

I am planning to take Chem 14C, LS7B, LS23L, Psych 100A, and might try to enroll in Ling 1, although the fact that its 100 spot waitlist is closed may stop me from doing that HAHA. I'm not too disappointed with that since the four classes I'm planning to take require a lot of my time and attention, ...

Winzel Payumo 1B

Yes, since larger molecules have a greater number of combinations for their atoms to arrange themselves, which results to greater entropy! :)

Winzel Payumo 1B

I've been craving pho, ramen, and sushi so much nowadays because of the cold weather!

Winzel Payumo 1B

I am so glad we did! I feel a lot more relaxed now that it's out of the way :)

Winzel Payumo 1B

I plan to take Chem 14BL and 14C together while everything's fresh! This is just a preference, but my previous experience of waiting a quarter to take the next class (LS30 series) did some damage to me since I had to relearn everything while learning completely new things at once.

Winzel Payumo 1B

I think each method would work, but I agree with everyone above! Converting kPa to atm makes things simpler.

Winzel Payumo 1B

My all-time favorites are The 100, The Flash, and One Day at a Time, and I honestly do not get tired of rewatching these shows (no joke, I've watched each of them 5+ times, they're THAT good). Right now, my current favorite is WandaVision!

Winzel Payumo 1B

I suggest doing the even problems to really test if you understand the concept well! I found the even-numbered questions a lot more harder than the odd ones, and the lack of solution manual for them really forces me to think about the problem. This is how I measure whether I actually understand what...

Winzel Payumo 1B

The final exam was a lot harder than the midterms for me last quarter. I found the questions more complex and since there are more questions, the time constraint made it harder. However, doing a lot of practice problems and timing yourself should help you prepare!

Winzel Payumo 1B

I'm currently in 14BL and the work load is definitely manageable. We have lab assignments that we complete during section in lab groups, and individual lab reports due weekly. The lab reports are sometimes a little time consuming and tedious but definitely not too hard. In my opinion, 14BL is a lot...

Winzel Payumo 1B

Hey there! I understand what you're going through since I deal with it constantly, but listing down everything you need to do, rather than letting your mind be consumed by it definitely helps. For me, when I write it down, it gives me this initiative to do them and also realize that the workload I h...

Winzel Payumo 1B

This unit really takes a lot of practice problems to master. It's not something that rereading notes would fix, so I suggest doing as much textbook problems as you can!

Winzel Payumo 1B

Thank you so much for sharing this! It's really upsetting that we associate our worth with our grades and it's normalized to sacrifice our mental health for numbers. This perspective you posted really needs to be shared.

Winzel Payumo 1B

Hello there! I usually work about 40 hours a week and also taking 4 classe. Honestly, it was very overwhelming at first because it feels like I have a lot of things to do at once, but I learned that having a VERY concrete schedule truly helps you be on top of studying, working AND take care of yours...

Winzel Payumo 1B

Just let your TA know about it! It shouldn't be too much of a big deal since there are only 14B students taking Dr. Lavelle this quarter :)

Winzel Payumo 1B

I'm planning to take 14C and 14BL together next quarter! I understand your concern regarding the split of 14C and 14D due to summer break because I took LS30A over the summer and now that I'm taking LS30B after taking a gap quarter, it does take a while for you to recall some information. However, I...

Winzel Payumo 1B

A week or two! This test had a lot of computations, about the same amount for our first midterm for last quarter, but since everyone took it last Friday and not throughout the week, we may have to assume they'll need few more days to finalize it! :)

Winzel Payumo 1B

Nope, but based on the trend from the previous quarter, it should come out by the end of the week 5, beginning of week 6 at most, even with possible errors, since the first midterm grade came out Thursday after testing week with an error on some tests! :)

Winzel Payumo 1B

I am truly sorry you're going through this and I personally relate, but my advice would be to try out a new hobby that you haven't dealt with! I think that trying new things out has been really helpful for grounding because it gives you something to look forward to after a hectic schedule. I think a...

Winzel Payumo 1B

If the cation or anion is a strong base, then the salt will be basic since if you think of it as them "canceling each other out", the base would be stronger and therefore, would "win." The opposite applies for strong acids. If both cation and anion were strong acid and base, then...

Winzel Payumo 1B

It's always the coefficient, hence why you need to make sure the equation provided is balanced! The molarity/pressure will only appear for the I and E rows :)

Winzel Payumo 1B

Not a movie, but One Day at a Time is my comfort show! It's a pretty funny show that also talks about some social and political issues from a point of view of a Cuban family, and overall, the vibe of the show is so comforting! I recommend watching it when you need a good laugh or even a good cry bec...

Winzel Payumo 1B

The textbook problems are my top priority when it comes to study. I find that the midterm questions are more similar to the textbook problems than Sapling problems. Make sure to do EVERY single one from his list and you can also attempt to do some of the even ones, but I found that they're more diff...

Winzel Payumo 1B

To add on, you can also check by dividing x by your concentration, and if you obtain an answer that it's less than 5%, then it's safe to say that x is negligible.

Winzel Payumo 1B

Typically, it's just based on what you're given. If you have the initial concentrations for the reactant, that means that the reaction has to move forward to achieve equilibrium, so the reactant's change would be negative and the product's change would be positive. Then vice versa. However, if you h...

Winzel Payumo 1B

I don't have a mnemonic for this, but for questions that ask me to compare Q and K, I just think of Q as the "product" and K as the "reactant." If Q (product) is smaller than K (reactant), that means I need more product to achieve equilibrium (to be equal to K), so now I know tha...

Winzel Payumo 1B

Yes, I think it'll be during your specific lecture time, but it might be just like the final we're in we go to our TA's Zoom meeting since it'd be difficult to proctor hundreds of students at once!

Winzel Payumo 1B

I completely changed my study habits this quarter! Last quarter, I focused way too much on textbook reading and skimmed through the lectures, but now, I found it beneficial to watch the lecture first and if I don't understand a concept based on the learning objectives, that's when I read the textboo...

Winzel Payumo 1B

Can someone who had Lavelle for 14B explain what Respondus is and how we use it for the midterms? Respondus basically disables you from consulting different websites for answers. At first, we were told we were to have our cameras on as well, but we ultimately moved to having Respondus without a cam...

Winzel Payumo 1B

Just like what was said, you really have to look at the context of the question and match what was already given. This particularly reminds me of looking at other units to determine which R constant to use!

Winzel Payumo 1B

I don't think they'll carry, so just do 5 posts each week just to be sure!

Winzel Payumo 1B

Problems usually mention if there were any temperature changes or even if there weren't since they're a vital part of the scenario since temperature changes K. However, if it wasn't specified, I think it is safe to assume that K does not change, but I doubt you'll encounter a question like that.

Winzel Payumo 1B

Based on what we've learned so far, I think what you've stated is sufficient! I am pretty sure we'll learn more about enthalpy in the future, but for now, what was said on the lecture is enough for chemical equilibrium.

Winzel Payumo 1B

Catherine Bubser 2C wrote:If we were to say a reaction is moving the the right, would this mean the products are favored?

Yes since if the reaction is moving to that side, more products are being made, meaning that they're favored!

Winzel Payumo 1B

I’ll be going over the outline to make sure I still understand them, and if I don’t, I’ll reread my notes for it and do some textbook problems!

Winzel Payumo 1B

I just saw this right now, but my last final was for this class, so my break started after our test. It definitely feels like I can breathe easier due to the lack of stress, but I’m just waiting for my grade so I can completely relax!

Winzel Payumo 1B

I’m glad that we’re muted because I was just screaming when the timer turned red during the last minute and I was just starting a question and haven’t checked the questions I flagged, which was half of the test LOL but yeah if I had 30 more minutes, I would‘ve been fine, but I’m glad we’re getting 1...

Winzel Payumo 1B

I’m definitely doing more practice problems EVEN IF I understand the topic well because I saw that I got overconfident when it comes to the fundamentals and didn’t study it much, only for one of the questions on the final to be the one I struggled the most with haha! I also plan to attend more UA se...

Winzel Payumo 1B

They haven’t updated it since the due date is this Thursday!

Winzel Payumo 1B

If this happens next time and you aren't able to contact anyone, you can try searching up "sapling" on your address bar, and the one that leads to our homework should appear. You can also try searching for it using your history!

Winzel Payumo 1B

Kelly Singh wrote:
Lizbeth Garcia 1F wrote:I believe it is similar, just, maybe more questions since they are giving us more time to complete it.

Do you know how much time we're being given?

We are given 95 minutes!

Winzel Payumo 1B

Surprisingly, even with the stress I'm enduring since all of my finals are during week 10, I'm still doing okay and I'm still calm! This is very refreshing since in high school, I remember going to school without sleeping for the past 24 hours due to my workload, and now, even if my courses are hard...

Winzel Payumo 1B

I think memorizing some can be helpful, especially if you want to understand the topic better!

Winzel Payumo 1B

Since it is amphoteric, it can act as both!

Winzel Payumo 1B

Is it possible for us to go over which specific questions we got wrong with our TA's? That's usually what helps me study and go over my mistakes but I'm not sure if it's too late by now I think it is possible, but try emailing your TA to be sure! I agree that it's really helpful since this is what ...

Winzel Payumo 1B

I'll be doing the rest of the textbook problems assigned to us to practice for the new topics, then I'll reread my notes and redo some of the problems I struggled with before! I will also try to attend as many workshops as possible and will definitely attend the review sessions that Dr. Lavelle is g...

Winzel Payumo 1B

We usually travel during Thanksgiving, but due to the pandemic, we decided to just stick with a traditional Thanksgiving dinner!

Winzel Payumo 1B

It will be cumulative, but I was wondering if there's a breakdown of what will be on the test? I know it'll be a mix of everything, but do we have like a percentage of each topic on the test?

Winzel Payumo 1B

Lindsey Su 3E wrote:Will lectures without midterms still be recorded? On days we don't have midterms we don't have to watch the lectures right away correct?

The lectures are most likely to be recorded since it says "Online-Recorded" on MyUCLA!

Winzel Payumo 1B

There's no official date, but I think it's safe to say we'll get by Thursday since that's when we got our 1st midterm grade back!

Winzel Payumo 1B

I just saw this right now, but thank you for sharing this! It's really helpful.

Winzel Payumo 1B

I've tried to plan things to do after taking a test, but I usually just end up taking a nap LOL. After a good nap, I catch up on things I usually do but couldn't due to tests such as TV shows.

Winzel Payumo 1B

Thank you! I have my test in 3 hours, so I am definitely nervous! I'm going to take a nap after taking my test since I haven't had the chance to get a good sleep for 2 weeks now due to midterms.

Winzel Payumo 1B

Midterm 2 will be multiple choice, just like the last midterm, but this time, it'll have more questions, so each question is worth less points compared to the previous midterm! I'm not sure if it'll be harder since that question is kind of subjective!

Winzel Payumo 1B

This is pretty off-topic, but I think I may have missed some information during the discussions... I don't know where to find the given periodic table and equations sheet to print. Can someone point me towards it? Thanks :) You can find it on the tops of the class website under "Constants and ...

Winzel Payumo 1B

They are on Dr. Lavelle's website, but I'll provide you direct links to make it easier: Constants and Equations: https://lavelle.chem.ucla.edu/wp-content/supporting-files/Chem14A/constants_equations.pdf Periodic Table: https://lavelle.chem.ucla.edu/wp-content/supporting-files/Chem14A/Periodic_Table_...

Winzel Payumo 1B

One thing I've learned from this class and my previous classes that helps is focusing on practice problems instead of rereading the textbook or notes! Once you understand the concepts, I think it's more important to find as much practice problems as possible and if you get those wrong, make sure to ...

Winzel Payumo 1B

I recommend The 100 if you're into dystopian shows, One Day at a Time if you're into comedy-drama, and Avatar: The Last Airbender and The Legend of Korra, which I would say are two of the best shows out there and you really can't compare them to any show!

Winzel Payumo 1B

From what I've heard, you need to have good time management to do this since both classes have heavy reading! Since I think I've got the hang of balancing my classes, I will be doing this next quarter since I think it's good practice. For the next few years, we would have to take heavy classes toget...

Winzel Payumo 1B

What I've doing is I set this certain space as my study area. I don't do anything there but study, so when I go there, I can be productive! Recently, I also joined Discord productivity servers to hold me accountable, so I recommend searching it up and trying it out!

Winzel Payumo 1B

According to my TA, the midterm will cover 1D-2D for sure, and 3F.4 and 3F.5 are still tentative!

Winzel Payumo 1B

Hey all! I was just wondering if anyone else is starting to think about grades. I know we've only had one midterm so far, but I've been thinking about what my final grade would be and what I should aim for for my next few tests. Is anyone else in the same boat as me? Hi! I'm also in the same boat a...

Winzel Payumo 1B

Jordan_OBrien_2k wrote:
Eunice_Castro_1G wrote:The scores will be released on Thursday. Hope this helps!

Thank you!! I was wondering what day..do we know what time the midterm scores are coming out today by any chance?

His email said midday, so I'm assuming it'll be out in an hour!

Winzel Payumo 1B

At first, I thought enrolling in Chem 14B during my second pass would be smart since Dr. Lavelle accepts people from the waitlist and looking at my class planner, it seems like there are some spaces open for Chem 14A too, so I'm hoping that would hold the same for Chem 14B. However, we cannot be cer...

Winzel Payumo 1B

To get the velocity of the electron, use de Broglie's equation (λ = h/mv). Once you get the velocity, you can now use the KE = 1/2mv^2 to find the energy of the electron!

Winzel Payumo 1B

It says that the maintenance will run from 4:30 AM - 8:30 AM PST, so you should have plenty of time to finish tomorrow!

Winzel Payumo 1B

Happy Halloween!
I was in the mood to just sit down and rewatch TV shows instead of going out this year, and I honestly needed that time to relax so it was a fun day! I also finished my homework for this class once I was contented enough with the amount of rest I got.

Winzel Payumo 1B

I found the modules super helpful and I used them as a guide to know which topics I need to work on, so it's really sad there won't be modules anymore, but I understand that they can be quite time consuming to manage and Dr. Lavelle offers a lot more resources that are just as helpful, so I'm glad w...

Winzel Payumo 1B

I got a n=5 instead of 6, but what I did is first, I solved for the wavelength when it went from n=5 (n=6 in your case) to n=4 (n=5 for you). When I plugged those into Rydberg's equation, i was able to get my frequency, and by using c = λν, I was able to get the wavelength for that scenario and conv...

Winzel Payumo 1B

When I'm not busy, which is pretty rare nowadays haha, I like watching TV shows/movies I haven't watched and play video games! However, I haven't done these in a while since I tend to fall asleep right after doing my work.

Winzel Payumo 1B

I usually just put a keyword that I know would pop up and where the assignment was from (Sapling, textbook, module etc). For example, if I needed help with a certain Sapling question, I search up "sapling _____" with the _____ being a unique keyword from the question.

Hope that helps!

Winzel Payumo 1B

I'm pretty sure that Dr. Lavelle mentioned that he does not expect us to memorize conversions and constants, so it'll be provided for us if needed!

Winzel Payumo 1B

It is a good idea to review the modules since they're great practice, but I don't think rereading the textbook is ideal, but that is just my preference! I think it's better to just read your notes if you took some and do the practice problems Dr. Lavelle listed. If it seems like there are problems y...

Winzel Payumo 1B

Jamie Wang 3G wrote:^^ Did he say graphing was fine in his office hours? I'm currently in a different country and its hard to find a scientific one here.

For my TA, he said that graphing calculators are fine as long as they're not the ones that can store information!

Winzel Payumo 1B

I think it's only useful to know the lowest energy for Paschen (n=3) and Brackett (n=4) for now since it wasn't really focused on!

Winzel Payumo 1B

I am not sure where you got 2 from, but the answer is indeed 7 based on the answer key at the end of the textbook!

Winzel Payumo 1B

Hi Nicolette! I did the CSI program this summer, so I was able to adjust to the pace of college before the regular school year. With that, I was able to come up with study habits that I didn't have in high school. What I do now is I always make sure to list down all of the things I need to do for th...

Winzel Payumo 1B

Technically, you only need to show your workspace. My TA said showing your face is not necessary. However, to answer your question, if you're using a second device (assuming you don't have a webcam), you're opening Zoom using that second device, which is pointed to your workspace, and the device you...

Winzel Payumo 1B

I learned that waiting until the end to apply sig figs to your final answer only. If you get a number with a long decimal, you don't really have to copy all of them down, just as long as you have a good amount for your answer in the end to be more accurate!

Winzel Payumo 1B

1A.7b When an electron beam strikes a block of copper, x-rays with a frequency of 2.0 3 1018 Hz are emitted. What is the wavelength (in picometers) of these x-rays? When I did this problem, I got 150 pm, which was almost the same one from the solution manual, but instead of pm, it was 150 nm. The qu...

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