CHEMISTRY COMMUNITY

Emily Jacobo 1C

Yes!! Boosting so Lavelle can see. Thank you Professor Lavelle for an amazing and educational two quarters. Your enthusiasm and energy made Chemistry enjoyable!

Emily Jacobo 1C

I actually needed some new music recommendations so thank you all. I just read through the entire thread.

Emily Jacobo 1C

Essentially 200 points or 50% is needed to pass the class with a C-. So if you do all the sapling and chemistry community points, you only need 100 points of midterm and final to pass, which is very helpful and generous.

Emily Jacobo 1C

I had the same question, wanted to make sure i was not calculating them incorrectly tomorrow. Thank you to those that commented for the steps and helpful tips!

Emily Jacobo 1C

Thank you so much for the reminder! This will definitely save me from showing up to the final tomorrow an hour late! Also why did we have to lose an hour of study time :(

Emily Jacobo 1C

I can completely relate, this quarter for some reason has been really tough on me mentally. What I do is take everyday a little a time and not force myself to work when I absolutely do not feel like working. I also have started to listen to mindful podcasts and daily meditation to help me build up m...

Emily Jacobo 1C

I was wondering the same thing too! Just my luck if I set my alarm for 8am it will go off at 9am and leave me with 15 minutes :(

Emily Jacobo 1C

I am definitely planning to form there by fall 2021, especially once i’m fully vaccinated.

Emily Jacobo 1C

some of my favorite comfort foods include butter noodles, and any kind of fresh fruit.

Emily Jacobo 1C

The best way I get over the stress of a exam grade is to just simply distract yourself with other stuff. whether it be another class or a hobby. I find that if you sit and worry about an exam after it’s done, it’s only causing you more harm and stress, it’s done with. Remember, one bad test grade do...

Emily Jacobo 1C

This quarter has gone by so quickly! As for the midterm, I think that it went okay and I thank Lavelle for being generous with the free points and letting us know the type of questions that will be on the exams. Good luck to all on the final!

Emily Jacobo 1C

Yeah, you can and are most likely encouraged to post as many times as you want but the points you can receive for a grade are capped at 50.

Emily Jacobo 1C

I needed some new books to read too, so thank you all for the recommendations! I would also recommend reading Beloved by Toni Morrison, such a good read and so real.

Emily Jacobo 1C

I would definitely review and redo the textbook problems from previous outlines, and I would also recommend rereading the textbook for sections that you might not have completely understood.

Emily Jacobo 1C

My favorite comfort foods include pasta and most recently microwave kettle corn.

Emily Jacobo 1C

I will be moving right on over to 14C and taking another life science 7 series course. I think it’s best to not stop in between chemistry courses because it might be harder to recall previous information, so I’ll just continue to fight on through it.

Emily Jacobo 1C

Wow! I just read through this entire thread because I never thought of chemistry in that way really. Not only was this super helpful for chemistry, but I might just have to try a few of these tips myself! Thank you to everyone who shared some tips!

Emily Jacobo 1C

I agree, I think the textbook problems are probably going to be your best friend as they really give a good idea of the type of questions that are going to be on the exams and they get you used to the wording used. I also recommend attending UA review sessions that go over certain topics you don’t f...

Emily Jacobo 1C

I agree with what everyone has said so far. I personally make sure there is nothing else on my desk/wherever I’m working, that doesn’t need to be there and I take a good 5-10 minutes before the test to meditate and calm my mind, making sure that my brain and body are not super overwhelmed in that mo...

Emily Jacobo 1C

Congrats to everyone! We made it through and I hope everyone took some time during the weekend for yourself, you deserve it!

Emily Jacobo 1C

Thank you for the tips! I also wait until the week before to do the textbook problems as it keeps it fresh in my memory and it’s also a great way to gage where my understanding of the concepts is at. I would recommend checking the solutions manual when you’re not sure of the answer as sometimes seei...

Emily Jacobo 1C

I definitely would not worry too much about this, Lavelle usually updates grades after each midterm/Final so he will most likely update the chemistry community points after this weeks midterm.

Emily Jacobo 1C

It says online which means that you most likely have to be there during the given time. But, there is a chance the professor might record the lecture for students who might have missed that lecture, that has been the case for some of my classes that have stated “online”

Emily Jacobo 1C

I feel the exact same way sometimes! thank you for sharing this reminder, it’s really helpful and helps me to remember that it’s not the end of the world if I don’t do too well on a test :)

Emily Jacobo 1C

Yeah pretty much if you do the sapling and chemistry community posts you could easily reach the 200 points needed to get a C- or 50% in this class which is passing. It worked the same way last quarter in 14A.

Emily Jacobo 1C

I was confused on when to use this too, thanks for all of your explanations it makes a lot more sense now and I now know when to use each equation. It all depends on which is given and what they are asking for.

Emily Jacobo 1C

I had this issue too. I believe that Professor Lavelle just counted this weeks points early, but around next midterm or by the end of the quarter they will definitely update the points again and add whatever points you have done since they last updated them. Points for that week are always due by Su...

Emily Jacobo 1C

I had this same question, thanks to all that responded! I will try and attend a TA office hour to discuss the content that I got wrong.

Emily Jacobo 1C

You can look under your posts tab or what I usually do is look to the right of one of my replies or posts and it gives stats on the person that wrote the post/reply (you) there you can find the number of posts that person has done

Emily Jacobo 1C

Well... I was rooting for the Chiefs but seeing as I saw this post late and post-super bowl game... they did not win. But it was nice to relax away from chemistry for a few hours!

Emily Jacobo 1C

I agree, I definitely felt this midterm was a bit tougher than 14A’s midterms. I felt really rushed to complete the calculations and didn’t have as much time to double check my work as I would have liked.

Emily Jacobo 1C

He usually sends an email a few days after the midterm to give us a idea of how the midterm went and a possible release date for the midterm grades. Most likely we will get our grades by the end of the week.

Emily Jacobo 1C

I totally agree with you and often find myself feeling the same way. Some things that I do is take it a day at a time and spread out my work in digestible portions that won’t leave me feeling drained. I also keep a journal and sometimes walk around the room during a zoom lecture, it keeps my body aw...

Emily Jacobo 1C

Thank you all for the reminders and the words of kindness, it’s good to help each other and have some sort of support group. Definitely take a minute to relax and breathe, we got this!

Emily Jacobo 1C

After the midterm I spent the rest of the afternoon watching a movie and eating my favorite meal. It’s good to take a moment ( or in this case an afternoon) to relax and let your mind rest, or else risk burnout or distress.

Emily Jacobo 1C

Does anyone know why it's not open book? Weren't the 14A midterms open book? I'm not sure exactly why it's not open book, but it was the same way for 14A midterms (they weren't open book) and they were monitored via respondus and zoom. I know that we are allowed a periodic table, equations sheet, a...

Emily Jacobo 1C

Wow! Thank you so much! That's super helpful, I like to review someone else's notes to make sure that mine are correct and that I'm not misunderstanding any concepts so this really helps.

Emily Jacobo 1C

Yeah I agree with my peers, in my experience (I am rather slow to work on questions) I had enough time to work through them and then look over my work for any errors with about 5-10 minutes.

Emily Jacobo 1C

Professor has not specified yet exactly how many, but I'm sure it would be around 10-15 questions, similar to 14A. I think he will send out another email with more information early this week.

Emily Jacobo 1C

I have really weird taste as I listen to a wide range of genres, like R&B, indie pop, alt rock, pop, etc. Some of my current favorite artists are Jakob Ogawa, Arctic Monkeys, Tame Impala, and Chase Atlantic. It really depends on my mood and what I am doing that I listen to certain artists.

Emily Jacobo 1C

Lavelle sent an email a few days ago stating there will be no class, no peer learning sessions, and no office hours on Monday 1/18. So enjoy the day off!

Emily Jacobo 1C

I'd give more chemistry jokes, but all the good ones argon.

Emily Jacobo 1C

Yes! this would definitely be helpful and help me stay on track, as I procrastinate on my work. Count me in!

Emily Jacobo 1C

Definitely check with your TA, as each TA checks at different times (weekly or at the end) and let them know you came late, they most likely will allow you to make up your points seeming as you didn't come in until later :)

Emily Jacobo 1C

Yeah so unlike 14A, the exams will be during your lecture time on Friday’s. I’m sure as the time gets closer to the first midterm the Professor or your TA will go over the specifics of how it will be proctored.

Emily Jacobo 1C

Hi, so sapling is the only homework that’s due for a grade, but I’d like to think that the textbook problems are almost “required” too because they are very helpful and important to prepare for the exams.

Emily Jacobo 1C

I like to have either music or movies going on in the background while I work or even falling asleep, so usually the tv show I go to is Friends and some movies are any of the Harry Potter movies or any old disney movie

Emily Jacobo 1C

Yeah from my experience, if you reply to someone’s post (no matter how many reply) it will count pretty much. Sometimes not a lot of people have questions, or someone already answered so it’s okay to just reply as long as it’s thoughtful and not just a few word response.

Emily Jacobo 1C

I found that completing the audio visuals are very helpfully to solidify the concepts, although there isn’t audio visual modules for all topics. I also found reading the textbook and doing the practice problems are very helpful because Professor Lavelle models the exam questions from the textbook qu...

Emily Jacobo 1C

Like my peers have stated, it really depends on your schedule and how well you do/do not understand the concepts for that week. I usually attend a session when I don't understand the topics and then also the week before a midterm, as they sometimes host review sessions and give review worksheets.

Emily Jacobo 1C

I was wondering the same thing! Thank you for all these helpful tips on this forum. I definitely will try reading ahead to make sure I can get the most out of this coming quarter.

Emily Jacobo 1C

The deadline is Thursday at 10am for posts so once that deadline passes i’m sure they will input the final points

Emily Jacobo 1C

I think a big one is to stay on top of/ahead in my work and focus on a healthy lifestyle. It’s really easy to get lazy especially being at home, so I need to be as active as possible both mind and body.

Emily Jacobo 1C

definitely sleep, but also try and catch up on tv shows and spend time with my family, whom i neglected during this quarter :)

Emily Jacobo 1C

In an email, Professor Lavelle said that he hopes by saturday grades will be posted, he is waiting for chemistry community posts and of course the final.

Emily Jacobo 1C

Here is the link to the Final Review sessions: https://lavelle.chem.ucla.edu/wp-content/supporting-files/Chem14A/Final_Review_Sessions_14A.pdf You can also locate it on the right of Professor Lavelle's Chem 14A website. Thanks! For some reason I couldn't find the pdf on his website, must not have b...

Emily Jacobo 1C

I had trouble on this too! It took me a few tries to get sapling #1 right on this weeks homework. Turns out i forgot the 3 at the end. This thread really helped me understand more!

Emily Jacobo 1C

Does anyone have any tips or methods of how they remember how to find the oxidation number? I sometimes have trouble (most recently in the Sapling homework #9) finding the oxidation number.

Emily Jacobo 1C

This was happening to me too! I just took a break and then came back after a bit, restarted my computer, and it worked! I think there was an issue because CCLE was recently down.

Emily Jacobo 1C

Does anyone have/know where I can find the link to Professor Lavelle's finals review discussion sections for this week? I can't seem to find the links and I think he mentioned new links than the usual ones.

Emily Jacobo 1C

I'm a bit confused on ligands and how we tell the difference in atoms/molecules. Can someone explain how we remember if a compound is mondentate, bidentate,etc?

Emily Jacobo 1C

I had a hard time too on understanding the two, thanks to all that explained it here. I'm more of a visual person and the visuals really helped me to understand clearer.

Emily Jacobo 1C

Yeah I had a question about this too, I think its in our discussion sessions but I'm not sure if its during our discussion time or all at the same time on our scheduled finals time given?

Emily Jacobo 1C

I think you can discuss your midterm with your TA, just email them. Also, I believe in an email professor Lavelle said that he would bring up some commonly missed midterm questions in a finals review.

Emily Jacobo 1C

Our usual tradition was going to one of my grandma's houses for dinner and then the other grandmother's house for dessert, working it to where I can see both sides of the family. I then usually go black friday shopping that evening into early morning. However, this year I just stayed home :(

Emily Jacobo 1C

All I can say is don't get discouraged, I didn't do so well with the first midterm but I worked hard and did better on the second. Also remember you only need 250/500 points to pass the class!

Emily Jacobo 1C

I had the exact same issue! It took me a lot of tries for some reason even though I had the right answer! I finally had to exit the tab and come back.

Emily Jacobo 1C

I had a question about this too! thanks to all responded, it makes sense now

Emily Jacobo 1C

Yeah, I think there is a high possibility that he might, but I'm sure he will announce so this week, probably in an email.

Emily Jacobo 1C

Thank you! Also, would it be okay to take the Chem 14BL Lab section from 11am-1:30pm on Friday even though it goes into Chem 14B's friday lecture at 1pm, since the lecture is recorded? I think it would be alright, but I did also see that in response to another post on chemistry community, Professor...

Emily Jacobo 1C

yes, it is cumulative but I believe maybe with a slight focus on new material from the next few weeks?

Emily Jacobo 1C

I was confused on this too, and looking for good tips to memorize. So essentially knowing the number of valence electrons will help you determine the oxidation number for the element?

Emily Jacobo 1C

Hi! So in a lecture, Professor Lavelle said something about having a electronegativity difference chart for an exam. I was wondering if there was going to be a need for one this midterm? If so is there a printout link somewhere?

Emily Jacobo 1C

Hello! I just wanted to make a post where we can all go to to look for encouragement for this week's midterm. I'll start... You ALL have got this, and we will all do our best this week! Make sure you get sleep and don't strain yourself!

Emily Jacobo 1C

I don't believe there are anymore audio-visual modules for the rest of the quarter. It's a shame because I found them really helpful :(

Emily Jacobo 1C

I think in an email Professor Lavelle told us that he will review commonly missed questions from the midterms in a finals review discussion session.

Emily Jacobo 1C

Yeah, like everyone else has said I think that Professor Lavelle will send another email detailing the sections that will be on the midterm in the next week. I was curious too!

Emily Jacobo 1C

Yes, i feel the same way, i’m worried about the next midterms and my grades. I think I saw in the syllabus that we need at least 50% or higher to get a C-? I’m not exactly sure how that works.

Emily Jacobo 1C

Katie Lam 2G wrote:Unfortunately, I don't think there's a grade breakdown posted anywhere. His syllabus does say a 50% or higher is required to pass with a C- or higher.

so essentially if we get over 50% that’s a C-, therefore we pass? Sorry I’m just trying to calculate how this quarter will go for me. Thank you!

Emily Jacobo 1C

Hello! So I was wondering if anyone knows the breakdown of number of points to grades? For instance how many points out of 500 for an A?

Emily Jacobo 1C

I just read through everyone's replies, and yeah that is about what I heard. Also got some answers to questions about partial credit.

Emily Jacobo 1C

I believe that it is just a computation error, the correct answer is about 4.2 x 10^-26 J, so your answer is not that far off, remember to keep at least four decimal places while you are working until the very end when you can simplify it.

Emily Jacobo 1C

Hi! Can someone further explain the Pauli Exclusion Principle and the "concepts" behind this?

Emily Jacobo 1C

I was wondering the same thing! Now after reading through this post, I have a better idea of what to do. Thanks to all and good luck!

Emily Jacobo 1C

No i don't think Professor Lavelle has told anyone yet, I think he was still figuring that out. I've been told about 15-20 is the average. Sorry if that wasn't extremely helpful, I'm curious myself.

Emily Jacobo 1C

Hi! So i was wondering if anyone was doing extra textbook practice problems outside of the assigned ones to further practice for the midterm? If so, are they as hard/harder than the ones Professor Lavelle assigned?

Emily Jacobo 1C

Hi! So I was wondering if any UA's or TA's would be hosting midterm review sessions between now and the midterm? If so when?

Emily Jacobo 1C

Hi! So this is probably a dumb question, but I understand the difference of momentum and velocity mathematically (how to calculate for each) but what is the difference between momentum and velocity conceptually?

Emily Jacobo 1C

Oh my bad. I didn't actually answer your question directly, but yeah I don't think there was any gas in the bottom. I think it was displayed so we could compare it to how gases emit specific and different wavelengths of light. I understood what you meant. Thank you though! Yeah it seems there was n...

Emily Jacobo 1C

Connie Liang 3L wrote:I was a bit confused about this too, but I believe there's no gas inside. Professor Lavelle mentioned just a traditional visible bulb.

Oh okay that makes sense! I just thought as there were gases in the other sections, but it makes sense now. Thank you!

Emily Jacobo 1C

Hi! So during the lecture's demo on friday, Professor Lavelle told us about the different gases in each section, but I didn't catch the name of the gas used in the bottom section (with the white and rainbow light). Does anyone know the gas? Just want to make a note of these gases and what they look ...

Emily Jacobo 1C

Each energy level n represents a different amount of energy. When the light and its energy level matches the difference in energy between two specific energy levels, the electron can be excited from the energy level that it is currently on to the other energy level. For example, if n=2 has an energ...

Emily Jacobo 1C

Hi, so quick question about what "electronic signature" is? I heard it in the lecture and I want to make sure I understand all the terms and what they mean/represent in chemistry.

Emily Jacobo 1C

Hi, so I just watched the 10/14 lecture and I'm still confused on how "excited electrons" move up or down the atomic spectra and the energy required to move from n=1 to n=3 or vice versa n=3 down to n=1.

Emily Jacobo 1C

Minahil_Tufail_1L wrote:Hi! In E.9 when they ask for formula units, they basically just want you to convert from the amount of mols to the number of atoms, ions, or molecules in that amount by using Avogadro's number, 6.022 * 10^23.

Thank you!! it makes sense now

Emily Jacobo 1C

Hi! The previous answer pretty much covered all of it, but if you are looking to convert something to formula units such as atom/molecules, it is important to note that the 6.022 * 10^23 number is per mole. So, if you are trying to say convert 5 moles of water into atoms, you would multiply by Avog...

Emily Jacobo 1C

I’m not sure if this has already been asked but i was reviewing the fundamentals again and on exercise E9 it asked about formula units? I’m not sure what those are...

Emily Jacobo 1C

Hi! So if you go to the top right corner of the person's post that you want to reply to, there is " and if you click on that button it lets you reply to that post directly by quoting it.

Emily Jacobo 1C

Hi! No the four modules aren't necessarily due by a certain time, but as we are ending the review of fundamentals tomorrow it is highly recommended to do them ASAP so you understand the topics before we move on.

Emily Jacobo 1C

Is there a groupme code for lec 2 discussion group 2H yet?

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