CHEMISTRY COMMUNITY

Nicolette Simoni 3L

I recommend Into the Spiderverse and Jojo Rabbit. Both movies are such genre refreshers and honestly some of the best films released in the past few years!

Nicolette Simoni 3L

I don't think Lavelle would include questions from midterm 1 and 2, he uses some questions from the textbook problems so if you want to practice I would definitely do them!

Nicolette Simoni 3L

Chemical Equilibrium! I liked doing ice tables :))

Nicolette Simoni 3L

The final will be cumulative, basing it off of last quarter, it will have the number of questions from each unit will depend on the amount of time spent on them.

Nicolette Simoni 3L

I have found the review sessions taught by the UAs to be very helpful! They manage to go over everything in each unit step by step and I really understand them!! I highly recommend you go :)

Nicolette Simoni 3L

I'm most looking forward to getting coffee and studying at the Kerchoff Coffee House! I'm a freshmen and love studying in coffee shops, so I can't wait for it to open!

Nicolette Simoni 3L

For 14A, the number of questions from each unit was based on the time spent/how long the outline was! I'm sure if it was any different, Lavelle would say something. :)

Nicolette Simoni 3L

Hi! I definitely recommend attending the review sessions! I found them to be very helpful last quarter! Learning from what I didn't do last quarter, I did all of the textbook problems throughout the quarter and plan to compile them into a huge study/review sheet! I also plan to go over my notes and ...

Nicolette Simoni 3L

The slowest step is the rate determining step because the overall reaction cannot be completed without the slowest step (which is also the longest taking)!

Nicolette Simoni 3L

My favorites are Pinches Tacos, Tocaya, and Ami Sushi! If you drive down you can go to the Century City Mall and get Eataly or Din Tai Fung!

Nicolette Simoni 3L

Lecture #19 really explained the Nernst equation and when to properly use log or ln with Q, it was really helpful so if you're unsure I would rewatch it :).

Nicolette Simoni 3L

You're going to be using the Nernst equation for this problem (E=E^*-RT/nFlnQ), but you have to do a few things first. R is 8.3145 J/mol*K and F is 96485 J/V*mol, with temp @ 298.15 K, those are your constants so you need to find the rest. To find Q, divide the [Products]/[Reactants]. You also need ...

Nicolette Simoni 3L

I've been listening to a lot of Malibu by Anderson .Paak lately, you have to listen to the songs in order for the ~experience~!! It just puts me in a good mood while doing homework. :)

Nicolette Simoni 3L

My favorite books are Slaughterhouse 5 and Middlesex (a must read!!). But I am currently reading Red, White, and Royal Blue because a friend recommended it and it is a really fun read and all the characters are great :).

Nicolette Simoni 3L

I'm honestly just happy that I have improved my score over the past chem midterms (including 14A). After midterm 1 I honestly fell a week behind because I was so exhausted from midterms, never doing that again!

Nicolette Simoni 3L

Sapling due dates are posted under the week on CCLE! For Week 7 and 8 Sapling it's due next Sunday at 11:59 pm. :)

Nicolette Simoni 3L

I love my mom's chicken kebab! It's so good, especially with grilled onions. :-)

Nicolette Simoni 3L

Right after the midterm, I made myself a grilled chicken salad and the chicken was soo good. A treat well deserved, later on, I got boba with my friends and blasted music on the car ride back. Tonight I plan to bundle up in my bed and watch the new episode of WandaVision. :)

Nicolette Simoni 3L

I'm planning to take Chem 14C next quarter! I only need to take the first three of the series so I'm glad I can finish the series in a year! I'm also taking N13, which is anatomy for nursing students, which I am very excited about! I'm also taking Comm 1 to satisfy a GE requirement.

Nicolette Simoni 3L

Based on what we did in 14A, yes. For the final, I do not know how TA proctors will be sorted but last quarter our TA proctored all of their discussions along with a LA.

Nicolette Simoni 3L

If you're into anime, watch Jujutsu Kaisen! It's its first season and every episode has been SO good! I'm not a big anime watcher but I look forward to when a new episode comes out. :)

Nicolette Simoni 3L

I assume so, when I reviewed my midterm for Chem 14A, I went to my TA office hours and they read me the questions I got wrong and the correct answer, I wasn't able to access the exam on CCLE myself.

Nicolette Simoni 3L

Hi Hanna, Just want to let you know that many people are in the same situation as you and you are not alone :), chemistry is a hard subject and it challenges us to do better everytime. I would try going to the UA sessions, they're students just like us and they were once in the same situation as you...

Nicolette Simoni 3L

Last quarter I felt that I prepared a lot more for the final than the midterms but it was definitely much harder, I barely finished. However, Lavelle provides many resources for us to use in preparation for the exam (like TA/LA sessions on each outline topic throughout the week).

Nicolette Simoni 3L

I believe the lectures from week 4- week 7 (Lecture #12-16). Lavelle recently sent an email of the Unit outlines for Thermochemistry and Thermodynamics (he also said the thermodynamics we learned for Midterm 1 differ from what we will be tested on for Midterm 2).

Nicolette Simoni 3L

Hi! The Chem 14 series has really taught me what works for me and what doesn't in terms of studying, but I think I've figured it out. What I like to do is try and read/take notes on the material that will be covered in lecture the next day (so reading the chapter first then watching the lecture). Re...

Nicolette Simoni 3L

This is what I did to solve my problem (remember to change 403 KJ to 379 KJ). Since the reaction is already balanced, you just need to do basic stoichiometry to convert the number of S8 moles to the # of CS2 g. I hope this helps looking at my own work, I always tend to learn best by looking at examp...

Nicolette Simoni 3L

If you're into plants/gardening, I recommend DIG! They've done a lot of fun activities via zoom, when in-person most of the club spends time gardening at Sunset Rec! :)

Nicolette Simoni 3L

Yes! I like reading the textbook (especially before lecture) because it prepares my mind for the material. My method is reading the textbook and taking notes, watching lecture to solidify my knowledge, and then answering the textbook and sapling questions to test out how well I can execute my learni...

Nicolette Simoni 3L

I"m upset with myself that I messed up on one of the ten-point questions, it was literally a textbook problem I worked on two days prior. But there's nothing I can do now but study harder for the next midterm.

Nicolette Simoni 3L

The duration will likely be 50 mins with an extra five minutes before the exam to set up (but I would join the zoom earlier so that the TA can check you off and you can start sooner).

Nicolette Simoni 3L

I just have a general question regarding what was in Lecture #9. For the descriptions of specific heat capacity and molar heat capacity, they are virg amount of heat needed to increase the amount by 1-degree celsius, what I cam confused on is that for molar heat capacity, it is J.K^-1.mol^-1 (its wi...

Nicolette Simoni 3L

I believe so, I think a few lectures back Lavelle labeled elements like iodine in their standard states so just having a general idea of what elements are naturally gaseous should be good. I would go back and watch the lecture clip!

Nicolette Simoni 3L

Though not many are in my situation, I feel having a roommate (whos taking the same classes as I am) helps me stay motivated because we hold each other accountable and usually do all the studying and homework around the same time. Getting out of the house where I felt the most relaxed made it so I w...

Nicolette Simoni 3L

I've been listening to so much Hozier this quarter it really gets me into the studying vibe without listening to the same lofi beats nonstop.

Nicolette Simoni 3L

All calculators are allowed! Just not the super-advanced ones that connect to the internet or whatever. :)

Nicolette Simoni 3L

Hi!

I went home this weekend and printed out the periodic table and the 14B formula sheet. Pretty sure its the same gist as 14A, also be sure to bring some blank computer paper to use for your scratch work! If you leave your formula and periodic sheet blank you wont have to reprint it :).

Nicolette Simoni 3L · Re: Lecture on 1-20-2021 Okay nevermind he posted it please ignore this post.

Okay nevermind he posted it please ignore this post.

Nicolette Simoni 3L

Is there a recorded or even a live lecture for today? It's usually up by 10 am PST but I looked and there isn't anything, was it cancelled because it is Inauguration Day? Thanks!

Nicolette Simoni 3L

I am just like ΔH... because I am constantly pressured. :)

Nicolette Simoni 3L

I assume we will be proctored by our TA's and a UA helper. As for questions I am sure we will hear about that soon.

Nicolette Simoni 3L

Considering we only did half of the Quantum World on Midterm 1 for Chem 14A, will we only be tested on thermochemistry for next week's midterm? I read the email that Dr. Lavelle sent regarding teaching the thermochemistry section for this week's lectures, and was wondering if we have enough lecture ...

Nicolette Simoni 3L

I love to watch Mamma Mia! its just a feel good movie (it doesn't even have an antagonist!). I love the ABBA music and you come out of the movie just happy! :)

Nicolette Simoni 3L

Though it has not been confirmed yet, the midterm will most likely be multiple choice like in 14A (and with more math problems in these units, hopefully, partial credit is given). UA sessions will continue during week 4 :).

Nicolette Simoni 3L

What exactly is our lesson plan before midterm 1? I didn't expect to spend only one week on Unit 1 and was wondering if we will be spending the remaining weeks leading up to the midterm on acids and bases (like we did with the quantum world in 14a) or if we will be starting unit 3, thank you!

Nicolette Simoni 3L

It will depend on whether we are on track or behind in class. We've already started Unit 2 for 14b in week 2 so it is up to Lavelle if he wants to have class that day (he did for veterans day).

Nicolette Simoni 3L

pKa is = to -logKa (this applied to the same to pKb = logKb). Keep in mind that if your Ka value is small, the pKa value will be greater.

Nicolette Simoni 3L

Do the textbook problems!! And try and read the textbook content before lecture so you don't feel behind. :)

Nicolette Simoni 3L

They are the same but I understand the confusion as they are said at different times in the textbook. If the reaction "shifts" to the right, it is favoring the products and if it "shifts" to the left it favors the reactants, that's how I like to understand it! Hope this helps! :))

Nicolette Simoni 3L

I noticed that too, I would consider looking at the PDF version of the textbook too to see maybe if Macmillan glitched and cut off the 10^-3. If its the same, then its a typo and I would just choose to have your notes match the Atkins.

Nicolette Simoni 3L

You can try sending textonline@asucla.ucle.edu your sapling order # and bruin ID telling them you haven't received your code yet and that you need it for class and they will most likely just email you your code by the end of the day.

Nicolette Simoni 3L

For 14A, all the Audio-Visual Modules were posted at the beginning of class, so I'm assuming that the ones on the website are the only ones for the class.

Nicolette Simoni 3L

I agree with the statements above but one thing to also keep in mind is that when calculating the equilibrium constant from thermodynamic tables of data (the standard gibbs free energy for example), you have to give K, not Kc.

Nicolette Simoni 3L

Dr. Lavelle prerecords his lectures in one of the lecture halls, it gives a bit closer resemblance to in-person teaching. I also think he does it so students can pause at any time to take notes, it also prevents "zoom bombings". :)

Nicolette Simoni 3L

I don't think it works that way. This is a new class with different lessons and chem community points start from scratch.

Nicolette Simoni 3L

What did the other molecules say when they watched HCl bench press 200 lbs?

"WOW! That's one strong acid!"

Nicolette Simoni 3L

Hi!

This chart from Macmillan was especially helpful to me, you should check it out! :)

https://sites.google.com/site/chempendi ... authuser=0

Nicolette Simoni 3L

Hi! So Table J.1 has a list of the common aqueous strong acids and bases that may hopefully help you understand! Strong bases include group 1 hydroxides, alkaline earth metal hydroxides (Ca(OH)2, Sr(OH)2, and Ba(OH)2), and group 1 and group 2 oxides. During today's step-up session, the UA said that ...

Nicolette Simoni 3L

How do chemists decorate for Christmas?

With a Chemistree!

Happy holidays everyone good luck with finals!

Nicolette Simoni 3L

What does a chemist wear under their lab coat?

A POLOnium shirt.

Nicolette Simoni 3L

For example, will the Lewis Structures and VSEPR unit on Tuesday cover the same material as the one on Thursday? I know we should attend as many sessions as possible but I am curious.

Nicolette Simoni 3L

What's the president elect's favorite type of ligand?

Bidentate

Nicolette Simoni 3L

I can't access the lectures its 10 pm and I'm having the same problem :( I tried logging out and logging back in and even connected to the UCLA VPN, nothing has worked.

Nicolette Simoni 3L

I was wondering the same too because we discussed isomers in discussion, an isomers problem is one of the textbook questions for 9C on the syllabus and I would really appreciate it if Lavelle clarified if we need to know it for the final.

Nicolette Simoni 3L

Hi! You are right, you must place a prefix of the number of ligands present before each ligand. Keep in mind, if your ligand already has a prefix (ex. diethylenetriamine) and there are more than one, there is a different set of prefixes to use to avoid redundancy. So, you must use Bis- for 2 ligands...

Nicolette Simoni 3L

Hi! Its actually quite simple! Electronic geometry is the shape of the molecule with the lone pairs present in mind, where as molecular geometry counts for only the atoms present, not the lone pairs. Think of it like this, IO3- has a tetrahedral electron arrangement (electronic geometry) with a lone...

Nicolette Simoni 3L

I feel the same way. It is my first quarter at UCLA and I've learned what to do and what not to do in the future. Lavelle has been the best professor for chemistry and I am glad he gives us all of these resources. I was feeling a bit down but todays lecture about myoglobin and hemoglobin really inte...

Nicolette Simoni 3L

Hi! As said in today's lecture, myoglobin is used for muscles and tissues and hemoglobin is reserved for blood. Hemoglobin has 4 myoglobin-like molecules which gives the opportunity to transport 4 oxygens (O2) at a time

Nicolette Simoni 3L

With Finals Week approaching, here's a "cursed meme" to raise your serotonin, C₁₀H₁₂N₂O. Don't work yourself too hard and be sure to take breaks!!

Nicolette Simoni 3L

I have my discussion on Thursday and because of the holiday it was cancelled. Does that put us behind the other discussions now or will we be reviewing this weeks lectures and next weeks during our next discussion? I enjoy reviewing each topic with my TA and I hope we discuss ligands, etc.!

Nicolette Simoni 3L

I was going to say the same as Sydney, in lecture he says we do not need to know how to name them yet but we will probably have to during the acid-base section!

Nicolette Simoni 3L

The number of ligands attached to central ion, which is actually the number of donor atoms is basically the coordination number. In other words, the number of bonds also equals the coordination sphere! For example, with [Fe(CN)6]4- everything within the bracket is inside the coordination sphere, an...

Nicolette Simoni 3L

Never give up!!! I love that Lavelle doesn't mark us down for doing multiple attempts. If you still can't figure it out just guess or ask a friend and then read the solution explanation! You got this!

Nicolette Simoni 3L

This quizlet should be helpful since we won't be allowed a reference sheet for the final exam, this is good the memorize! :)

https://quizlet.com/494291463/vsepr-shapes-diagram/

Nicolette Simoni 3L

I made a few posts under the science jokes topic this week but it doesn't seem to show up under My Posts. Will it be seen and will I still get my points for the week? Thank you!

Nicolette Simoni 3L

What did the F atom say to the P atom after they ate a whole bowl of popcorn?

Get some flossforus!

Nicolette Simoni 3L

What did the organic compound say when it discovered it could be used as a fertilizer?

UREAka!

(thank you sapling for the inspiration)

Nicolette Simoni 3L

What did the Chemistry professor say to the students wanting to ace chemistry?

Keep your ION the prize!!

Nicolette Simoni 3L

Why is N2O an an exception to the symmetricalness around the central atom? It's the example in the textbook and wondering why a nitrogen is acting like the central atom. Thank you!

Nicolette Simoni 3L

This problem is more so asking for all possible outcomes for n=2, so it has the potential to fill 2s^2 and 2p^6 with the 2s-subshell (l=0,ml=1) and the 2p-subshell (l=1, ml=-1,0,+1 (3 spots)). I'm sorry it can be kind of confusing but I hope this helps!

Nicolette Simoni 3L

You could always make your own! The song Dr. Lavelle plays at the beginning of most of his lectures is Black Mamba by Glass Animals! They have other great songs (I recommend The Other Side of Paradise). But you're right, we need his song list.

Nicolette Simoni 3L

Hi! I can see the mix up, induced dipole-induced dipole are also known as London dispersion and van der waals while induced dipole-dipole is a completely different reaction. Though both would have a net attraction of -2 KJ.mol-1, induced dipole-dipole is a permanent dipole moment paired with a tempo...

Nicolette Simoni 3L

Hi!

So you would determine the bond length through the number of bonds (single bond being the longest and triple bond being the tightest) and the size of the atom. Hope this helps!

Nicolette Simoni 3L

For Topic 1F, should we read the whole chapter or stop after 1F.5: Electron Affinity? Thanks!

Nicolette Simoni 3L

Hi!

Since highschool I have referred to this approach, it gives a great visual of the order. Hope this helps! :)

https://antranik.org/wp-content/uploads ... ration.jpg

Nicolette Simoni 3L

Hi!

What has worked best for me is first watching the lectures, then doing the reading, then spending alot of time on the textbook and sapling questions. They give me good practice. I also go over the unit outlines and fill them out to make sure I've covered all the unit material.

Nicolette Simoni 3L

It will be during your Week 7 Discussion, I'm assuming its the same procedure as Midterm 1.

Nicolette Simoni 3L

Earlier this year I watched Scrubs and honestly its the best medical show in my opinion. Its so funny and honestly fun to watch if you are premed/preheath. Its on hulu!

Nicolette Simoni 3L

I think there are but we don't have any discovered elements that possess that subshell.

Nicolette Simoni 3L

Hi! I've been stuck on this problem for while. I attempted to follow the feedback but still get the answers incorrect: The electron affinity of thulium has been measured by a technique known as laser photodetachment electron spectroscopy. In this technique, a gaseous beam of the anions of an element...

Nicolette Simoni 3L

I relaxe by playing with my dog or watching Netflix and Hulu! I just watched Emily in Paris with my mom this past weekend! :)

Nicolette Simoni 3L

I'm assuming that it will be released after everyone has taken it. But it may take longer to calculate the partial points for some of the questions too.

Nicolette Simoni 3L

Yes, when you join the zoom call just position your phone to view your workspace.

Nicolette Simoni 3L

Are you made of Na and Cl? You're so salty.

Nicolette Simoni 3L

Hi!

I would just follow the exact constants on the formula sheet! :) ex.) using 2.998 over 3.00 for the speed of light will give you a more precise answer!

Nicolette Simoni 3L

I know the Lyman and Balmer series were spoken of in the module and lecture, but do we need to know about the Paschen and Brackett series too? It was mentioned in question 1A.11. Thanks!

Nicolette Simoni 3L

For lecture #8 on CCLE, does anyone know the song playing at the beginning? Its cool and I like the vibes, could it be Glass Animals? Thanks! :))

Nicolette Simoni 3L

Yes, my TA said the midterm will be multiple choice.

Lavelle said during office hours today that more info on the midterm will be announced this Wednesday!

Nicolette Simoni 3L

Hi,

Towards the end of the week, I'm going to make a summary page of every topic we have learned and just neatly organize my notes. I am also going to redo all of the HW and post-module questions to help prepare for the midterm! Good Luck!

Nicolette Simoni 3L

Freshmen here, and I'm still adapting to the college workload and studying (living at home definitely makes it harder!). I want to hear from others, how do you study? what is the one thing you wish you could have changed about your study habits in previous quarters? Any advice helps thank you and go...

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