CHEMISTRY COMMUNITY

Jonathan3B

Wow this quarter has been speeding by. Soon enough we will be taking the final and finishing the quarter.

Jonathan3B

You might have luck emailing your TA and asking them for your exam in order to use it for review. It does not always work.

Jonathan3B

In N Out is pretty good.

Jonathan3B

I think I am going to take chem 14C but I am still slightly confused on what the difference is.

Jonathan3B

There is absolutely no better resource to study with than the text book problems in my opinion. You will often find textbook problems on professor Lavelle exams, sometimes exactly the same, and sometimes just with different values.

Jonathan3B

I think the grades are down because they are getting updated, not too sure.

Jonathan3B

Really needed this after my MT 1 score lol.

Jonathan3B

YouTube video's are helpful, but honestly there is nothing more helpful then the textbook problems. If you know how to do the textbook problems confidently, you'll do great on the midterm.

Jonathan3B

50% of the total points in this class will land you with a C-.

Jonathan3B

Yeah, I didn't do so well on the first midterm so I'm pretty nervous going into this one.

Jonathan3B

Can never go wrong with Breaking Bad!

Jonathan3B

Yes it will have 4 and 8 point questions, and you can get up to 4 points partial credit om every 8 point question.

Jonathan3B

This will be such a useful tool to study with! Thank you so much for sharing :)

Jonathan3B

I don't know, because no matter how much or how hard I study I have not gotten the grades I wanted on the previous midterms. So the standards aren't very high, but I know I am doing my best and there is not much else I can do.

Jonathan3B

I noticed many questions on previous exams we have taken that were straight out of the text book with different values/ variable. So yes the text book is a great tool to get familiar with the questions likely to be on the final.

Jonathan3B

Yes, you should know the list of strong acids and bases, as this will help you greatly with acid and base questions. Anything that is not in the lists of strong acids and bases is either a weak acid/base or neutral.

Jonathan3B

Thanks for the kind words and motivation, hoping we all do great on this final :)

Jonathan3B

Yes it will be cumulative, relative to the amount of time we spent on it. So early/ late quantum will be pretty prevalent will everything else sprinkled in.

Jonathan3B

Based on the previous mid-terms, yes a lot of the questions found in the book have been on our tests so I would recommend you get familiar with them.

Jonathan3B

He said it will be the same format as the previous mid-terms so I take it that it will be multiple choice only.

Jonathan3B

I think the text book has more relevant questions that will probably show up on the exam. I would say do as many text book problems as you can to ensure you will know how to do them if you encounter them on the final.

Jonathan3B

This is very kind of you, thank you so much!

Jonathan3B

Yes the scores have been released today. You can check them on CCLE or MyUCLA.

Jonathan3B

It is just the amount of point you earned out of 500 at the end of the quarter, but I have heard that the class average plays a part in final grades.

Jonathan3B

Yup, very worried. I think many people are doing very good in this class so I am afraid the high class average will affect my grade negatively.

Jonathan3B

Going on evening walks while listening to some music is very calm and relaxing.

Jonathan3B

It sucks because I thought I did great, even better than the last midterm, but I checked my score today and... it was not a pretty sight to see.

Jonathan3B

He is pretty good with giving us time before the tests to learn the material so I wouldn't worry about it too much.

Jonathan3B

Yes they have changed, I start studying for an exam about 2 weeks before to avoid cramming. I am still not getting the grades I want though.

Jonathan3B

I have heard December 11th. I think Lavelle will let us know the exact date soon though.

Jonathan3B

The UA sessions are very helpful, but also I would advise against cramming. Start studying a long time before the exam to avoid time being an issue. BTW Hannah Chew's step up sessions on Tuesdays are extremely helpful.

Jonathan3B

Well... they are out, I am very disappointed in myself to say the least lol.

Jonathan3B

ms will always be either -1/2 or 1/2. I recommend looking up a video on YouTube on quantum numbers, I did it and it was very useful.

Jonathan3B

The last 8 bullet point of outline 2 should be on this midterm since Dr. Lavelle said everything after midterm 1 up to outline 3 will be on the second midterm.

Jonathan3B

Electronegativity increases from the left to right and down to top.

Jonathan3B

lectures from 10/23 to 11/11. so #10-18

Jonathan3B

A lewis base donates electrons in a chemical reaction while lewis acids accept electrons.

Jonathan3B

If I need assistance on a concept or topic I am not quite understanding, I will go on YouTube and look up any videos "Organic chemistry tutor" has mad on the topic and take notes. I will more often than not understand the topic/ concept a little better than before.

Jonathan3B

Q:Why did the white bear dissolve in water?
A:Because it was polar.

Jonathan3B

Larger atomic radius=longer bond length

Jonathan3B

I wish I did just a little better on the first midterm, but other than that I'm feeling pretty good about it.

Jonathan3B

I think he meant only Wednesday discussions, but just to make sure I would try to join your discussion meeting whenever it is to be safe.

Jonathan3B

I don't think we really know for sure, but I'm thinking we will get a grade based on the total number of posts rather than when we posted.

Jonathan3B

Breaking Bad all day every day.

Jonathan3B

The few step up sessions I have been to, have been very useful and allowed me to get a deeper understanding of the material.

Jonathan3B

He just sent out an email saying that we should get our score by Thursday this week.

Jonathan3B

From what I've heard, it will be anywhere from 10-30 questions. Multiple choice with some conceptual questions, so not all questions will require work to be done.

Jonathan3B

I remember the lyman series is n=1 because a lower case l is very similar to a 1. I remember the Balmer series is n=2 by thinking about how the B in Balmer is the 2nd letter in the alphabet.

Jonathan3B

I enjoy playing video games or watching YouTube, but only after I am done doing my work because if not I will feel very guilty about it.

Jonathan3B

The Balmer series is any situation where NFinal, or the ending energy level is n=2, and the same concept is applies to the Lyman series except instead of Nfinal being n=2 it is n=1. I t is also good to know that the Lyman series is UV while the Balmer series is Visible light.

Jonathan3B

Yes they do, higher frequency directly correlates to higher energy. If an electromagnetic wave has high frequency it is also a high energy wave.

Jonathan3B

Compile a list of every topic covered so far and from that list mark the ones you are struggling with or not understanding. Watch a YouTube video on each one of those topics, take notes on the videos, and then do practice problems until you feel confident in your understanding of the topic. Do this ...

Jonathan3B

I am also struggling to stay on top of things, so what I am doing to study is watching YouTube videos on each topic he covered, taking notes, and doing some practice problems to ensure I know what I am doing. Lavelle's videos are very useful but sometimes I get confused and I am unable to ask questi...

Jonathan3B

Yes, the book is a very good source that you should use, but on top of that I would recommend watching YouTube videos on material you are struggling with. Take notes while you watch these videos then turn to the book to do some practice problems. Do this for every subject that we have covered so far...

Jonathan3B

I would recommend you wait until the final answer as doing this in the middle of a problem can lead to confusion and may cause your answer to be slightly off.

Jonathan3B

I think the general rule of thumb is to wait until you have your final answer to round. This ensures you get the most accurate answer.

Jonathan3B

Since molecular equations are basically some sort of multiple of the empirical equation, find out what that multiple is (should be fairly easy given you have both equations) and then divide the molar mass of the molecular equation by that multiple and if it equals the molar mass of the empirical equ...

Jonathan3B

Yeah I think it's 11:59/12 on Sunday night. If not I would still play it safe and have it done before Monday.

Jonathan3B

I like to make a sort of table with the amount of molecules of the reactants on the left side and the amount of molecules of products on the right side. I will update the numbers in the table as I go so all the information I need is organized and clean.

Jonathan3B

From what I've heard from my TA, during exams everything we need such as chemical name/ formula will be given to us.

Jonathan3B

Usually weather you put in the precise molar mass (EX: O-15.99), round it ( EX: O from 15.99 to 16), or "simplify" it (EX: O from 15.99 to 15.9) you will still be able to get the correct answer, so I think its up to personal preference and the specific molar mass. So for me I will enter C ...

Jonathan3B

If it is a decimal such as 0.0023 for example, you would move to the right until you hit a number other zero and count how many there are, 2 in this case. If it is a number like 100, for example, you would move to the left since there is no decimal until you hit a number that isn't zero. These are o...

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