CHEMISTRY COMMUNITY

Juliana Rosales 1H

Probably not. I wouldn't count on it lol

Juliana Rosales 1H

Im not even are what I would do at this point as far as forming. If I am going to dorm I think id want to wait until I could enjoy myself

Juliana Rosales 1H

Honestly I'm to even sure you can retake a class if you get a C. However, totally feel ya on this. Last quarter I barely got by with a C and this quarter my GPA is like super low compared to how its been. Its a big shock for me, but after talking to some premed and doctorate program HAs, they gave m...

Juliana Rosales 1H

The most practice I get is from homework problems, and I have found that pretty useful for my studies

Juliana Rosales 1H

Ill tell you this, you cannot study the whole quarter in one day if you nothing. I tried it last quarter and did not work out lol. Honestly if you payed attention to most of the quarter, you should be able to make use of all the studying that you put in. I don't recommend trying to learn anything ne...

Juliana Rosales 1H

I am going to take chem 14C, but not with Lavelle. kind of bummed about that since I have gotten so used to him

Juliana Rosales 1H

Attend any live meetings that you can.

Juliana Rosales 1H

On a side note When season three aired I only watched part one of it because I thought it was a short season. I just watched part two when I rewatched the show for season 4 and I'm kind of glad I saved myself from all the torture I would have gone through waiting for season 4 lol

Juliana Rosales 1H

I have seen a lot of talk about whose side on everything, but where Im at right now, and for what Ive Benn spoiled for lol, its very hard to choose a side. Based on what I know its extremely hard to even have an accurate history of what happened between the parties as I fell each has its own flaws i...

Juliana Rosales 1H

I was watching season 4 of the anime and got like 4 episodes in and just stopped. I can't do this whole week by week thing lol. Im waiting until the whole season comes out so that I can binge it lol

Juliana Rosales 1H

50 is the max lol I wish I was able to get extra points though, it would definitely help me a lot

Juliana Rosales 1H

The only thing I know about this final is that its going to determine if I pass or fail this class, so wish me luck lol

Juliana Rosales 1H

I ignore all of my responsibilities, let my grades drop and online shopping.

Juliana Rosales 1H

Also refunds are designated for their own quarters, so you wouldn't be obligated to spend your refund on summer tuition. You should still receive another payment in the new quarter is what I'm assuming lol

Juliana Rosales 1H

I get financial aid too, and I wanted to take summer session as well I already enrolled in my classes, and then a new bill thing will show up on your bruin bill. It'll tell you how much the classes are total. Just know that if you unenroll in all your summer classes its a 150 dollar fee.

Juliana Rosales 1H

I have the same problem! If you do receive the Cal grant though, I think you can request to have it be applied to your summer classes through a petition. I found most of my information on this website: https://www.financialaid.ucla.edu/Undergraduate/Summer-Information#495121507-maintaining-summer-a...

Juliana Rosales 1H

I miss being around people. I didn't talk to other students like usually, but I miss the company of having people around me. Also I miss the anxiety I get when I walk into a lecture hall and try to figure out where I'm going to sit.

Juliana Rosales 1H

I'm trying to take chem 14C next quarter but well see how this class goes lol.

Juliana Rosales 1H

thanks for posting this! I was having trouble with the problem too, even though its not with the same values, and the explanations really helped me understand what my next seps should be to try to solve the problem.

Juliana Rosales 1H

The real joke is me being in this chemistry class right now

Juliana Rosales 1H

I just wanted two share that I had the same trouble you did and I can't help but laugh at myself becuase I was changing the wrong H2O and wondering why my question was wrong lol. Its a relief to have finally gotten it right though

Juliana Rosales 1H

Im having trouble with the same one and I still can't get it lol

Juliana Rosales 1H

I might go and try to rewatch the lectures for the newer material that will be on the final. I really need the points so I will probably attend any meetings that I can

Juliana Rosales 1H

My score isn't out yet, or maybe I haven't looked in the right place, but I am probably going to be devastated when I get my score back

Juliana Rosales 1H

Im so nervous about this upcoming midterm because first off, I don't even know when it is, and then I have so much material to catch up on lol. We'll se how things go. The midterm is going to be on Friday at the lecture time that you're signed up for. I'm also pretty but hopefully if we work hard e...

Juliana Rosales 1H

200 points in this class will get you a C-. That would be 50%. Also if you are in a certain major maybe check to see if a C is the lowest grade you can get

Juliana Rosales 1H

In all honestly when I do stuff like baking I am reminded of balancing equations and the likes. It ruins my mood for the most part to think about chemistry outside of class time, so to make up for it I usually add a little more or less then the required amount just so everything is not exact. On top...

Juliana Rosales 1H

Additionally I have been interested in finding out why oil fires need to be put out with a fire extinguisher and not water. I saw online a demonstration of what happens when you put water on an oil fire and I really don't understand why it happens, but Im assuming its some type of chemical reaction.

Juliana Rosales 1H

The only thing I think that I really have to contribute to this thread is about this lady I saw on TikTok who put baking soda in a pot of boiling water and it like foamed up and spread all over the kitchen. Usually putting something in water is a physical change I think, so I thought it was really i...

Juliana Rosales 1H

Yeah! As far as things have gone so far, things will be the same in this class as they were for 14A

Juliana Rosales 1H

Im so nervous about this upcoming midterm because first off, I don't even know when it is, and then I have so much material to catch up on lol. We'll se how things go.

Juliana Rosales 1H

Just know that at least you are trying! Personally it is EXTREMELY hard for me to even attempt to do as much as your doing, so try not to be too stressed about it.

Juliana Rosales 1H

I wasn't exactly sure either, but now I am after reading this post. Now I think I am going to have to see how many points I have lol. I know I already missed out on some.

Juliana Rosales 1H

Round of applause to you! I was here trying to get all the help I could because I can only solve about three problems. Now I'll have more time to struggle with this lol. In all realness though, thank you for asking this because I would have just ended up giving up and not doing them at all.

Juliana Rosales 1H

This was a huge lifesaver! I kept trying to figure out what I was doing wrong! I don't think I would have thought about putting spontaneous on the top.

Juliana Rosales 1H

Just wanted to say that this thread is amazing. I am completely lost at what to do for this problem so having the extra explained steps here really helps.

Juliana Rosales 1H

I was so lost on this problem! thank you for the explaination it really helped!

Juliana Rosales 1H

Hello! this is how i did it to calculate path A, i just used the equation w = -P1V1 ln(V2/V1) in your case, it would be -(2.32)(4.41)(ln(8.39/4.41))=-6.58L atm but we would need to convert it to joules so you multiply it by 101.3 to get -666.5J To calculate path B you use the equation w=-Pex*deltaV...

Juliana Rosales 1H

You can use either and still get the correct answer!

Juliana Rosales 1H

I understand where you're coming from! I had so much trouble trying to find an equation that worked to figure out the answer.

Juliana Rosales 1H

Just wanted to say that I had problems with the two different equations as well! I was able to understand the equations I just could grasp the whole path A and B thing

Juliana Rosales 1H

Thanks for including the example from the textbook! It really helped as an example for this question.

Juliana Rosales 1H

I just wanted to say that this thread was so helpful. I was able to understand a big part of this problem thanks to it, even though I wasn't actually able to solve it in the end

Juliana Rosales 1H

Did you use -50g(4.184)(Tfinal-25) and just kind of solve for Tfinal like you would solve for x?

Juliana Rosales 1H

Im using the same set up and getting a wrong answer lol. Im not sure what I am doing wrong either

Juliana Rosales 1H

Ranen_Chang_2G wrote:For the specific heat of water, do we just assume that it is 4.184 J/(g*C)?

I believe the we do! We might have to convert it is the question asks, but unless it is described o defined as something else then 4.184 should be used

Juliana Rosales 1H

Hey thanks for mentioning this! When I first read about constant pressure thing I was a little confused and wasn't able to grasp the question correctly! these definitions and explanations definitely helped me a lot. Hopefully Ill be able to solve it now lol.

Juliana Rosales 1H

This whole thread was amazing! I had so much trouble with this problem and ts all helped so much!

Juliana Rosales 1H

I actually don't know either lol. I plan to watch the lectures about it and maybe read the textbook about it. All I have been able to understand is that the first step would be to identify the strong base or said in the compound. from there I am not sure what to do. There are some resources in the ...

Juliana Rosales 1H

I actually don't know either lol. I plan to watch the lectures about it and maybe read the textbook about it. All I have been able to understand is that the first step would be to identify the strong base or said in the compound. from there I am not sure what to do.

Juliana Rosales 1H

The attached picture really helped me out! thanks for sharing it. It really helps me understand the steps I need to take.

Juliana Rosales 1H

I had a similar issue! I have the same problem as you, but I think I will try it with the approximation and without. I know the professor said something about a cutoff at 10 to the 4th, but I don't know if that applies to sapling as well.

Juliana Rosales 1H

Hey just wanted to let you know that you might want to change your username since it looks like its your student ID number right now.

Juliana Rosales 1H

I am literally having the same problem. I have the first part of the problem solved but I can't figure out where I am going wrong on the second part

Juliana Rosales 1H

yes You can use the quadratic equation with this!

Juliana Rosales 1H

Hi! So this is all about combining/adding K values to solve for a different chemical equation's equilibrium constant. First you can recognize that the 3rd equation given is a part of the equation you're solving for, but backward. To find the K value of a backward equation it is 1/k. The other equat...

Juliana Rosales 1H

Thank you for asking this question! I had the same problem and I was really confused about how to approach it !

Juliana Rosales 1H

We won't be using them in this course!

Juliana Rosales 1H

They are inversely related!

Juliana Rosales 1H

It depends on the state that it is in. Wether it is a gas or a liquid.

Juliana Rosales 1H

Absolutely! You're on the right track

Juliana Rosales 1H

It should be atm!

Juliana Rosales 1H

I would say always to assume kelvin unless Celsius is specified.

Juliana Rosales 1H

Thanks for asking this question! I was having trouble with this question and I made the exact same mistake lol.

Juliana Rosales 1H

Thank you for asking this question!

Juliana Rosales 1H

I personally write a bunch of arrows on my periodic table

Juliana Rosales 1H

They decrease!

Juliana Rosales 1H

I think it should be Fe2

Juliana Rosales 1H

I personally just leave it

Juliana Rosales 1H

After you pick out the strongest acids and bases, just mitch and match the other ones in between and you are bound to get the right answer.

Juliana Rosales 1H

I don't have any jokes per say but I have a pair of his and hers mugs.

H-Hydrogen
Er- Erbium
S- Sulfur

I used to think they were pretty funny until I started to take chem again.

Juliana Rosales 1H

The only time I ever herd this mentioned was in an earlier lecture where he mentioned it. However, I might have it mixed up with another word, but I thought it was this one.

Juliana Rosales 1H

From reading all of these replies the only answer I got is that there are multiple ways to find it, its juts that you have to hope to get an easy compound

Juliana Rosales 1H

thank you so much for posting this! It is extremely helpful

Juliana Rosales 1H

Okay to be honest I had already tried this problem 15 times before i saw this post and I still couldn't get the right answer. Thank you for asking it because it helped me understand how to get the correct answer.

Juliana Rosales 1H

All the replies to this post were super helpful. I wasn't really able to understand the concept until I read the explanations here. Thank you for asking this question because I do not think that I would have found the correct words for the question.

Juliana Rosales 1H

I hope you were able to get it!

Juliana Rosales 1H

I honestly do not know how to tell, but I could not think of any other ways to try to draw it.

Juliana Rosales 1H

Just in case you were still having trouble with this one, I got 85.1 degrees fro mine. Many of the replies before mine explain how to kind of get to that value, but just in case there was some miscalculation.

Juliana Rosales 1H

I had the exact same problem! This was also one of the last problems that I had to answer and it was really stressing me out. But no worries, I'm sure many of us were confused by this one.

Juliana Rosales 1H

Hi I think the previous replies explain the process on how to get the solution, but just so that you can compare the answer should be 85.1 degrees I believe.

Juliana Rosales 1H

You are one of the only posts about number 13, and thank you for that, I really was confused with this problem and it seemed like everyone just kind of new it. I literally could not figure out the shape, so I am super grateful you asked this question.

Juliana Rosales 1H

Looks like you got this sorted out already lol. I literally just went through the same process trying to get the correct drawing. I had forgotten about the lone pairs that O had and kept getting the problem inncorrect.

Juliana Rosales 1H

Also I believe that for this specific compound the empirical and molecular formula are the same.

Juliana Rosales 1H

I am so glad that you posted this problem. I was having a hard time with it and it was super hard for me to understand. This post helped out a lot.

Juliana Rosales 1H

He probably knows from doing them so much and for so long. I can tell by looking at the column that they are it. On the top of the periodic columns there are numbers that will label the column.

Juliana Rosales 1H

This was a really good question lol. I would always play around and see which atoms would work where. I didn't know there was an actual reason why one was in the middle. This post really helped

Juliana Rosales 1H

If you google periodic trends and click on the first image that pops up it is pretty good. I just always reference one of those images and its easier to understand and read for me.

Juliana Rosales 1H

Honestly I don't even know how to tell by myself, but reading this thread really helped me understand what the differences were.

Juliana Rosales 1H

If you can tell based off of shape that is a very good way to figure it out, but it is always good to check with a other method if you can. I would say that It would be good for a quick guess, but you always want to be absolutely sure on some problems.

Juliana Rosales 1H

Thank you so much for your help! It totally makes sense.

Juliana Rosales 1H

Nitrate is (NO3)- and nitrite is (NO2)-. Between the two its just a difference of an oxygen. I can only assume that -ate and -ite have something to do with telling how many oxygen there are supposed to be

Juliana Rosales 1H

In the feedback that sapling gives you it tells you all of the equations or whatever they are called. its No3 - and the such. I do think I saw someone else mention trying to memorizing them on another post but I am not so sure about that. I know i didn't know the equation when i read the name lol.

Juliana Rosales 1H

I had the same trouble with this problem but when i tried to use the equation I still couldn't get the right answer. I was confused about the second part too because I didn't know what to do lol.

Juliana Rosales 1H

Honestly I don't know the answer either, but I'm really glad that you asked this because I was really confused about it too.

Juliana Rosales 1H

Its because p electrons are farther from the nucleus and thus have more energy while the other one is closer and so it has less.

Juliana Rosales 1H

yes. Its either going to be that one constant, or you'll be given the info to calculate whatever number they want you to

Juliana Rosales 1H

My TA showed us a picture of a periodic table that had big arrows in all these directions that showed how a trend would increase or decrease within the table. If you know the yourself I recommend drawing your own, or you could always google it.

Juliana Rosales 1H

Hey yall I had a problem with this hw question on sapling . When a metal was exposed to photons at a frequency of 1.23×1015 s−1, electrons were emitted with a maximum kinetic energy of 3.60×10−19 J. Calculate the work function, Φ, of this metal. I calculated it and got 4.55 x 10^19, and it said that...

Juliana Rosales 1H

If you add the picture of the line side by side they should be continuous. That’s how you will know

Search found 124 matches