CHEMISTRY COMMUNITY

Nick P 3D

I LOVE mac and cheese! All I eat is mac and cheese in all of its delicious variations. Sometimes with chicken, sometimes just the mac and the cheese. I love mac and cheese.

Nick P 3D

You always want to use the system's conditions for reversible pathways.

Nick P 3D

I'm still feeling it out, right now I think I am leaning towards getting an apartment but I will definitely be moving up either way.

Nick P 3D

Dear Dr. Lavelle,
I wish all my teachers were as prepared as you for online learning! I have had a tough time adjusting to online learning and you have made the transition much easier by providing so many resources and ways to prepare and learn at our fingertips. Thank you!

Nick P 3D

Pretty happy with how I did I think, it seemed a lot easier and more straightforward than both midterms. I feel that it was closer to the sapling homeworks and that helped me a lot.

Nick P 3D

It is definitely possible, i'm not sure what kind of learner you are but for me just reading the textbook honestly helps the most as it can get it through my head and allow me to process it at my own pace. The second best thing I would recommend is the Sapling homeworks. Even if you don't know the m...

Nick P 3D

Rate law graphs, 0, 1st, and 2nd order, are definitely the ones to know and what I am focusing the most on right now!

Nick P 3D

Zero order is independent of the concentrations of any of the reactants. This means the graph is always a negative line, -k. All it shows is [A] over time T.

Nick P 3D

Intermediates are not included in the rate law. In the sapling HW #13 There is a problem like this and the feedback section provides a great guide on how to do problems like this.

Nick P 3D

I'm definitely going to go buy some pizza after I finish, that should cheer me up because I already know it will be pretty rough. Blaze pizza is selling pizzas for $3.14 so thats my current plan. Until then, I'll be studying!

Nick P 3D

My favorite was probably balancing chemical equations because I already knew it from high school and it was easy

Nick P 3D

I thought midterm 2 was about the same as the first one. I thought both were pretty hard and did about the same on both. I'm really preparing hard for this final and hoping it is about the same as the midterms so I know what to expect.

Nick P 3D

I'm a freshman and I am definitely most looking forward to meeting a bunch of new people and being around everyone else, I have some friends from ucla who I get to see but it will definitely be cool to be around everyone!

Nick P 3D · Re: Final Exam Time The final is 9:30-11:00 am on Sunday, March 14

The final is 9:30-11:00 am on Sunday, March 14

Nick P 3D

Yeah iphones and macbooks and pretty much everything thats connected to the internet will change automatically I'm pretty sure

Nick P 3D

This quarter has definitely been the toughest yet for me, really looking forward to the break!

Nick P 3D

Yeah sapling is not working for me either right now I hope it comes back soon because I want to start to work on the homework.

Nick P 3D

Last quarter, I found that the most helpful for me was probably the outlines and the older sapling assignments. The outlines for me help because it breaks it up into the sections we learned it and when I review it in the order we learned it it helps me. Also I think the older sapling assignments are...

Nick P 3D

I am not yet a part of any organizations, as I have found it a little difficult to find and join some while being online. I am super interested in them, however and will definitely be joining a few once I am on campus in the fall (hopefully). I will definitely keep an eye on this thread and hopefull...

Nick P 3D

Step up sessions and work shops are both super helpful! Personally I prefer the workshops because they are a little faster paced and you get to go through stuff almost like office hours with the TA and approach the problems how they would. Step up sessions provide you with a little more direct help ...

Nick P 3D

I used to read a lot of fantasy and if you're into that, check out the stormlight archives.

Nick P 3D

My favorite song right now is probably Busy Earnin by Jungle. If anyone else used to play FIFA, you will recognize this immediately, I saw it in a tik tok and it brought back so many memories

Nick P 3D

Water is added to the half reactions when they are unbalanced in order to balance the reaction.

Nick P 3D

No, you dont have to memorize all the oxidation numbers as long as you know all the rules. It is helpful, however to remember some of the common ones such as oxygen and hydrogen. Also , you should know the exceptions to the rules since they do not always apply in the same way.

Nick P 3D

Yes, anode should always be on the left and cathode should always be on the right regardless of which way the diagram may be flipped.

Nick P 3D

Salt bridges essentially allow ions to flow back and forth, preventing an accumulation on one side which would result in a charge and disrupt the processes at work.

Nick P 3D

Yep, the oxidizing agent is being reduced, while the reducing agent is being oxidized. It's definitely a little confusing at first, but once you know its not too bad.

Nick P 3D

Yes, it technically is possible, but takes a very very long time and will result in very very small diamonds.

Nick P 3D

Yep i also work a part time job since I have been staying at home I just decided to keep working rather than quit for school like i had originally planned. I have pretty flexible hours but work a few nights a week and then weekends as well. It actually kind of helps me because I really have to stay ...

Nick P 3D

There are quite a lot, wikipedia has a pretty good list. But yes those are the ones we covered in class.

Nick P 3D

COngrats guys only 3 more weeks then a nice relaxing 2 day spring break

Nick P 3D

My favorite food is probably french toast but banana bread is also pretty great

Nick P 3D

Based on the other tests I would guess it would be out within a week to a week and a half from the day we took it, so sometime this week would be possible

Nick P 3D

I just finished Initial D. I've never watched anime before but it might be my favorite show now

Nick P 3D

I believe midterm 2 will cover material up until Friday the 12th. This means it will finish off outline 3 where midterm 1 left off and then outline 4 through that lectures content.

Nick P 3D

Midterm 2 will pick up where midterm 1 left off on outline 3 and cover the rest of outline 4. It won't have any electrochemistry, mostly thermochemistry and thermodynamics. The material goes up until what we learned last Friday.

Nick P 3D

I believe you are correct, no class lectures or zooms will be occurring due to the holiday. Enjoy the day off!

Nick P 3D

When you do the problems do you feel confident about them? If so I would suggest trying other practice problems within the same sections of the textbook and even if those questions aren't on the test, it should help to further familiarize you with the content. If you don't feel confident about the p...

Nick P 3D

The two most common forms of R use pressures in either Torr or Atm, you just use whichever value of R matches the units with the information you are given in the problem.

Nick P 3D

K is basically the non specified version of Kc, meaning it could either be Kp or Kc if it is just referred to as K rather than one of those. K is specifically the equilibrium constant of the concentrations while Kp is partial pressures.

Nick P 3D

I usually make sure I have watched and understood each of the lectures that regard the topics at hand. Then, if I am at all confused I will usually write the topics down separately and take my own notes from the textbook. Then I do practice problems for all of the topics and usually attend a review ...

Nick P 3D

I believe just memorizing the ones that are given to us (in the textbook) is the only real way to deal with this, there really is no trick or secret as far as I know.

Nick P 3D

Negative work means the system requires energy while positive means it gives it off or produces it.

Nick P 3D

Im pretty sure 50-72% is C-, then after that everything is normal with 73-76% is a C, 77-79% is a C+, etc.

Nick P 3D

Yes because we know that not all heat can be converted to work so it only works in theory since it assumes that is true

Nick P 3D

I would say yes this is fair game for the midterm since we went over it in lecture. For converting temperatures that should be on your equation sheet you have printed .

Nick P 3D

If you are given partial pressures, you will always use Kp. If given concentrations or amounts, you will likely use Kc although you may have to calculate concentrations from other given values.

Nick P 3D

In an exothermic reaction, heat is released, meaning it is on the products side of the equation. When you raise the temperature, the reaction therefore shifts left, away from the increased heat to the reactants side. This makes K smaller since there will be less on the bottom of the K equation. Simi...

Nick P 3D

Nope, Lavelle said not to worry about them too much and that there won't be much emphasis on sig figs for this course. I usually just round normally and since the assessments are multiple choice you should be fine to select the answer closest to yours.

Nick P 3D

Yes, all Aqueous and Gaseous substances are included in K

Nick P 3D

pKa is just the negative log of kB. Same thing with pKb, it is just the negative log of kB

Nick P 3D

Endergonic or exergonic refer to gibbs free energy, while endothermic or exothermic refer to enthalpy.

Nick P 3D

I find that usually the most helpful thing for me is doing the review questions that he puts with the homework. That way I can practice the stuff we learn in an actual application rather than just knowing the concepts in my head.

Nick P 3D

Yes, he does step up sessions before midterms and the final and also has tons of resources on his website that you can access at all times.

Nick P 3D

I asked last quarter and my TA said that any calculator is fine, I used a T-84 Plus CE. I used it all of last quarter and so far this quarter too!

Nick P 3D

Using PV=nRT you always use kelvin

Nick P 3D

Yes, on the syllabus it states that this quarter midterms will be given during the lecture times rather than during your discussion periods.

Nick P 3D

Last quarter in 14A I found all of my grades for Chemistry community in the grades tab on CCLE. All of the sapling HW grades you can tell what you got just based on the percent of the questions you got right in the assignment as you are doing it. Whatever percent complete you submit will be your gra...

Nick P 3D

Hi, I took 14A last quarter and found that the most useful thing for me was to use the wide variety of study material on Dr. Lavelle's website for review use. In addition, the peer review and office hours were extremely helpful to me as they reinforced the basic ideas that we learned during lecture....

Nick P 3D

The first assignment is due at the end of week 2, 1/17 I believe. It is due by midnight that Sunday.

Nick P 3D

H2O is water and H2O2 is hydrogen peroxide.
What is H2O4?

Drinking

Nick P 3D

Dr. Lavelle said we will be using bars/atm. I believe bars is preferred but atm is a very similar value

Nick P 3D

I believe all reactions will eventually reach equilibrium as long as there is the enough reactants to get it going!

Nick P 3D

I believe there is a bot that counts your number of new posts per week, so as long as you are doing 5 per week you will be getting full credit. Sometimes the CCLE grades update a litle late but it always is correct when it gets updated.

Nick P 3D

I was having the same issue, but went back just now and was able to complete them all after just refreshing the page. Maybe just give it some time, I believe the deadlines were all extended to Wednesday morning.

Nick P 3D

Many of the questions will be from the textbook, but there will still be some that aren't. The textbook questions should be a good indicator of your readiness!

Nick P 3D

This is so helpful Ive been so busy and wasn't able to make a few of the review sessions like I wanted to

Nick P 3D

As long as you have Respondus on your iPad and a secondary camera I don't see why not, you just follow all the same guidelines as anyone on a computer.

Nick P 3D

I always have this problem over breaks, usually what I try to do is either write up answers to a study guide provided by the teacher, or make my own study guide and answer all the questions, then when class is about to begin again I review this study guide and it usually comes back pretty quick sinc...

Nick P 3D

just wanted to second this, I too have been watching the Organic Chemistry Tutor on youtube since high school and it provides some great explanations to help lock in topics along with all the great resources Dr. Lavelle has!

Nick P 3D

I was having issues earlier, but just logged in as of 6:51 PST

Nick P 3D

Two chemists walk into a bar. The first orders a water. The second says, "I'll have an H20, too!" The second chemist dies

Nick P 3D

-ate just signifies a negative charge for the whole compound so include it for negative compounds.

Nick P 3D

Pretty good, just starting to feel the pressure of finals week coming up but otherwise looking forward to a break after a pretty intense last month of school.

Nick P 3D

My plan for final study is going to be to attend as many final review sessions as I can and to go back and review homework problems from each week to make sure I have a decent grasp on each type of problem that can appear on the final. Also, I am going to re-watch and re-read sections of the textboo...

Nick P 3D

I have the same problem, as this is my first time in a chemistry class since sophomore year of high school. What I did was to watch all the modules on Lavelle's website as well as completing the pre and post assessments. This really helped me solidify my base for chemistry. I also skimmed through a ...

Nick P 3D

Yes, each bond and lone pair is a region of electron density. However, double and triple bonds both count as a single region of electron density since it is just a type of bond, not 2 or 3 bonds.

Nick P 3D

I think all the things we are expected to know are given on the formula sheet and if it isn't on there it will likely be given in the individual question which requires it. Otherwise I would just make sure to know how to use each thing and what it is used for and you should be set.

Nick P 3D

Personally, my biggest obstacle regarding focus with all online school in general is the lack of structure compared to in person classes and lectures. I had a lot of trouble with this at first especially with the asynchronous lectures such as in this class. I have since solved this by giving myself ...

Nick P 3D

I believe all equations and formulas we need to know will be on the sheet that we print out along with the periodic table. I mostly use the sapling hw questions to guide my preparations and if I can do all of those I feel pretty solid on my knowledge for upcoming exams. If not, I always just use the...

Nick P 3D

Yes, cumulative, and I am assuming it will be the same format as the midterms and be multiple choice only with no free response.

Nick P 3D

Yes, the final exam for this class is cumulative and it includes all material from both midterms and what we cover from now until the final.

Nick P 3D

When it says class closed, does this mean I can still apply for the waitlist? It only shows 9 lectures for me and all of them just say closed so I'm not sure I can even get on the waitlist at this point. Also, will more sections open up for this week's enrollment period? If anyone knows that would b...

Nick P 3D

Try chewing a specific type of gum or flavor of gum while you study, and then chewing the same gum when you take the test. This can help you recall the same information from when you were studying and also give you a little peace of mind that reminds you of the preparation you put in.

Nick P 3D

Personally, I find it the most helpful to re-watch the lectures that he has conveniently located on CCLE. I usually rewatch these, especially on the topics that I know I am a little iffy on, and then go back to the homework from that section and review those problems. Good luck!

Nick P 3D

I believe for the midterm all we need to have printed would be the periodic table and the formula paper. If there is anything regarding electronegativity I would assume either the values would be given or it would be about comparing elements in which case you can just use the trend of the periodic t...

Nick P 3D

Yes, we havent really been lectured on the naming of compounds yet so I wouldn't worry about that too much for midterm 2. I think once he lectures on it or once it is on the study guide for the test then we will need to know it for that coming exam.

Nick P 3D

The easiest way I have found to do this is using the groups of the periodic table. Knowing that in group 18 an atom is full, how many groups away it is tells you how many electrons it will need, basically its oxidation number.

Nick P 3D

Midterm 2 should be very similar as far as format and delivery goes, it will once again be all multiple choice and we will use the same respondus as well as a separate zoom camera setup. I think it may be a little harder since we are starting more material that we have not covered in high school che...

Nick P 3D

Agreed, VESPR was covered after the last lecture that he said would be included on the midterm so I wouldn't worry about it as far as studying for the midterm. I would make sure you know it by the final of course but for the time being you should be good.

Nick P 3D

For me, having a schedule is a major key to being able to study effectively. I look at my day the night before every night and find a block of time where I can just devote myself to studying and/or homework. I make it seem like an appointment because if I am just siting at home, it is easy to just g...

Nick P 3D

Feeling pretty good, it took a couple of weeks to kind of get everything organized and into a rhythm but now that I am getting used to the class, it is much more manageable. All the resources that Dr. Lavelle makes available for us are great and I am just beginning to make use of them and I regret n...

Nick P 3D

The easiest way I have found to keep track of all the trends is that they all increase across periods and down groups except for atomic radius. Atomic radius is the only one to decrease across a period and increase down groups (an arrow pointing down and left.) Electronegativity, electron affinity, ...

Nick P 3D

To find your own posts just quick on quick links at the top of the page and then "your posts" and it shows them all in the order you posted.

Nick P 3D

I was wondering the same thing, and talked with one of my friends who is in this situation. He said that the main thing is just that it is time consuming so as long as you are organized and on top of the work in both classes, it is not too bad conceptually. He actually said that he draws a lot of co...

Nick P 3D

I would really recommend the step up sessions. I find it hard to really concentrate just by myself with the book and having a live session to go to and watch really helps me pay attention and makes certain that I really work with the material rather than just skimming through the textbook.

Nick P 3D

You use this constant to convert almost any quantified value (electrons, molecules, etc. ) into moles and vice versa by either dividing or multiplying by it.

Nick P 3D

Yes, emitting light will always mean that the electron is dropping levels while absorbing will mean the electron is traveling from ground state to higher energy levels.

Nick P 3D

Mass=kg
Velocity=m/s
Wavelength=meters

Nick P 3D

the v for frequency should always be italicized while v for velocity is not

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