## Numbers to memorize [ENDORSED]

$E=hv$

Soyoung Park 1H
Posts: 30
Joined: Sat Sep 29, 2018 12:15 am

### Numbers to memorize

Do we have to memorize numbers such as c=3.00x10^8 m/s and planck's constant (h=6.63x10^-34Js) for the test?

Brandon Sanchez 3J
Posts: 30
Joined: Wed Oct 03, 2018 12:16 am

### Re: Numbers to memorize

I think they give us a sheet that has all the constants and equations along with the test so no.

Jacqueline Duong 1H
Posts: 61
Joined: Fri Sep 28, 2018 12:28 am

### Re: Numbers to memorize

Yeah, before the test we're given an equation sheet that has those numbers. So luckily, we don't need to memorize them!

Ariana Morales
Posts: 29
Joined: Fri Sep 28, 2018 12:15 am

### Numbers to memorize

Which equations should we know and understand before the test?

Rami_Z_AbuQubo_2K
Posts: 89
Joined: Thu Jun 07, 2018 3:00 am

### Re: Numbers to memorize

Most of the equations will be given on the exam sheet during the exam which you can find on the website if you want to make sure. Rather than memorize them, just make sure you understand each part and know how to manipulate them because that is much more important for exam 2.

Jordan Y4D
Posts: 25
Joined: Fri Sep 28, 2018 12:27 am

### Re: Numbers to memorize

Most of the equations and numbers should be on the formula sheet. I do remember Dr. Lavelle saying that the Ek =(½)mv^2 would not be on it, but I believe all other equations and numbers should be on there.

Mikka Hoffman 1C
Posts: 62
Joined: Fri Sep 28, 2018 12:23 am
Been upvoted: 2 times

### Re: Numbers to memorize

I think this is the sheet that we will be given with all the constants and equations: https://lavelle.chem.ucla.edu/wp-conten ... ations.pdf

405021651
Posts: 46
Joined: Tue Nov 14, 2017 3:03 am

### Re: Numbers to memorize

We will be given a formula sheet that will include those numbers!!

Michael Torres 4I
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Joined: Thu May 10, 2018 3:00 am
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### Re: Numbers to memorize

I recommend memorizing whichever constants and formulas you can, but don't stress about it too much. I can recall hearing that a formula sheet would be provided, but you should still play around with all the formulas just to make sure you understand everything before the exam.

Hilda Sauceda 3C
Posts: 76
Joined: Fri Sep 28, 2018 12:24 am

### Re: Numbers to memorize

Constants and equations will always be provided at the beginning of the test.

Maxwell S 3E
Posts: 15
Joined: Fri Sep 28, 2018 12:24 am

### Re: Numbers to memorize

No, those will be a part of a formula sheet added to the test. A few equations, or at least conversion between one given equation to one that is not given, may be more prudent to remember. For almost all constants, they will be provided.

allisoncarr1i
Posts: 60
Joined: Fri Sep 28, 2018 12:15 am

### Re: Numbers to memorize

They are given on the exams but it might be helpful to familiarize yourself with some of the more frequently used constants just as a time saving technique.

Jordan Lo 2A
Posts: 85
Joined: Fri Sep 28, 2018 12:25 am

### Re: Numbers to memorize

Do you know how many significant figures we should use when solving problems, or should we just match the given information?
allisoncarr1i wrote:They are given on the exams but it might be helpful to familiarize yourself with some of the more frequently used constants just as a time saving technique.

Desiree1G
Posts: 62
Joined: Fri Sep 28, 2018 12:16 am
Been upvoted: 2 times

### Re: Numbers to memorize

I think it is possible they may provide numbers we do not know for the test, however once we do practice problems I think you will memorize them. Currently the speed of light and plank's constant are ones we will gradually remember.

Posts: 30
Joined: Fri Sep 28, 2018 12:24 am

### Re: Numbers to memorize

I agree with the replies most of the equations and constants are given on the sheet. It was recommended that we memorize the constants and the basic equations to go through the test faster.

harperlacroix1a
Posts: 43
Joined: Fri Sep 28, 2018 12:19 am

### Re: Numbers to memorize

Our first test had a formula sheet on the front. I assume that is the same sheet we will be given all quarter

Dayna Pham 1I
Posts: 98
Joined: Fri Sep 28, 2018 12:16 am
Been upvoted: 3 times

### Re: Numbers to memorize

Hello!
I agree that there will be a formula sheet in the front. Common equations, such as E=hv and c= lambda•v will be given. However, derivations of common equations that are necessary for some problems, such as E = hc/lambda will have to be determined by the test taker. All constants should be on the formula sheet though.

Hope this helped!

Cienna Henry 1J
Posts: 61
Joined: Fri Sep 28, 2018 12:15 am
Been upvoted: 1 time

### Re: Numbers to memorize

jordan_lo_3k wrote:Do you know how many significant figures we should use when solving problems, or should we just match the given information?
allisoncarr1i wrote:They are given on the exams but it might be helpful to familiarize yourself with some of the more frequently used constants just as a time saving technique.

Match the given information

Posts: 32
Joined: Fri Sep 28, 2018 12:23 am

### Re: Numbers to memorize

While these numbers will be given on a formula sheet, I have learned that learning the numbers and when to use them gives me a greater understanding of the concept. Plus, by the time I know the numbers, I have become familiar with the process used in the types of problems.

josephperez_2C
Posts: 70
Joined: Wed Nov 15, 2017 3:04 am

### Re: Numbers to memorize

The formula sheet that was given on the first test is the same one that will be given on the second test and third test as well.

Jaedyn_Birchmier3F
Posts: 30
Joined: Fri Sep 28, 2018 12:26 am

### Re: Numbers to memorize

No, constants do not need to be memorized. The equation sheet with the constants given during the test can be found on Dr. Lavelle's class website.

ArielKim3C
Posts: 30
Joined: Fri Sep 28, 2018 12:25 am

### Re: Numbers to memorize

Constants like the examples you provided do not need to be memorized for they are given on an equation sheet with the test, however my TA recommended that we do memorize them just so that we don't have to constantly be flipping back to the equation sheet during the test.

Jack Hewitt 2H
Posts: 67
Joined: Fri Sep 28, 2018 12:27 am

### Re: Numbers to memorize

Soyoung Park 1H wrote:Do we have to memorize numbers such as c=3.00x10^8 m/s and planck's constant (h=6.63x10^-34Js) for the test?

No you do not we are given a constants and equations sheet. However it may be helpful to memorize them to some extent so you can do problems faster.

205458163
Posts: 33
Joined: Wed Jun 26, 2019 12:15 am

### Re: Numbers to memorize

No, we don't. They will give us when we have a test.

Posts: 97
Joined: Tue Feb 12, 2019 12:15 am

### Re: Numbers to memorize

There will be chemical formulas and equations given on the exam, including a periodic table.

BeylemZ-1B
Posts: 95
Joined: Thu Jul 25, 2019 12:17 am

### Re: Numbers to memorize

On tests (for Dr.Lavelle and I am sure all other professors) you are given both a formula chart AND periodic table to assist you.

Mandeep Garcha 2H
Posts: 100
Joined: Sat Aug 24, 2019 12:17 am

### Re: Numbers to memorize

They will give a list of constants and a periodic table.

Posts: 75
Joined: Tue Sep 10, 2019 12:16 am

### Re: Numbers to memorize

All I would say, is that for test 1 don't worry about having constants or unit conversions memorized (as they will be given), but for future reference (e.g. the midterm and final) to know and understand them.

Junxi Feng 3B
Posts: 52
Joined: Sat Sep 14, 2019 12:17 am

### Re: Numbers to memorize

The answer is no. The tests and exams will provide you with these numbers, because the point is not about whether you can memorize the numbers, but whether you understand the materials and are able to do the calculations.

Ashley Kumar 3F
Posts: 50
Joined: Sat Sep 07, 2019 12:18 am

### Re: Numbers to memorize

Not for this test, but when we are given the test, most of the basic numbers are on a little "cheat sheet" on the front of the page

IScarvie 1E
Posts: 66
Joined: Sat Aug 17, 2019 12:16 am

### Re: Numbers to memorize

It's nice to have them memorized because they are used often, but they will be given to us on tests

Emil Velasco 1H
Posts: 96
Joined: Wed Nov 21, 2018 12:19 am

### Re: Numbers to memorize

Helps a lot to memorize when you're doing practice problems but if you forget, there's always a cheat sheet he puts on the test for us to look at with all the constants!

Noah Canio 3C
Posts: 55
Joined: Wed Sep 18, 2019 12:20 am

### Re: Numbers to memorize

It would be convenient to memorize these numbers, but he does indeed offer a cheat sheet of equations to utilize for every test that we take. The particular cheat sheet is actually on his website: https://lavelle.chem.ucla.edu/wp-conten ... ations.pdf (If I remember correctly, we were given this sheet on test #1).

Gilberto Millan 1F
Posts: 13
Joined: Sat Aug 03, 2019 12:15 am

### Re: Numbers to memorize

Currently, you may be worried that memorizing them will be too much. But most likely you'll have them memorized naturally after many homework problems and review sessions. But how everyone mentioned, they will be on the cover page of every exam.

Lara Kristine Bacasen 1L
Posts: 110
Joined: Sat Jul 20, 2019 12:16 am
Been upvoted: 1 time

### Re: Numbers to memorize

Agree with everyone. They are kind enough to provide the equations and constants for us and it is easier to memorize them so you don't have to look over it constantly. But really you should make sure how to use the constants and equations. The equations will show the variables but not what they represent and it sometimes won't tell you what it is for so you should at least know what each is on site. Also it is good to associate the variables with it's units to help you get the desired answer/hint on what the equation is for.

Chem_Mod
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### Re: Numbers to memorize  [ENDORSED]

The Constants and Equations Sheet (https://lavelle.chem.ucla.edu/wp-content/supporting-files/Chem14A/constants_equations.pdf) and Periodic Table (https://lavelle.chem.ucla.edu/wp-content/supporting-files/Chem14A/Periodic_Table_IUPAC.pdf) found on Dr. Lavelle's website are the exact same ones you receive on all exams. It is recommended that everyone have these handy when working on homework problems as the textbook assumes you have these.

Elizabeth Harty 1A
Posts: 125
Joined: Sat Jul 20, 2019 12:16 am

### Re: Numbers to memorize

Do we have to memorize equations for the test then?

Claire Grover 3G
Posts: 64
Joined: Wed Sep 18, 2019 12:18 am

### Re: Numbers to memorize

Elizabeth Harty 3A wrote:Do we have to memorize equations for the test then?

No, they give the equations on a sheet of paper with the test.