Search found 72 matches

by Sam_Marasigan_3D
Mon Jan 25, 2021 9:59 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: 5% rule for checking the validity of assumptions
Replies: 7
Views: 27

Re: 5% rule for checking the validity of assumptions

Hi. Is the 5% rule similar to when were calculating for percent dissociation?
by Sam_Marasigan_3D
Mon Jan 25, 2021 9:48 pm
Forum: Student Social/Study Group
Topic: Favorite Music
Replies: 57
Views: 129

Re: Favorite Music

I've been listening to a lot of HONNE, Bruno Major, Before You Exit, and 92914 lately :)
by Sam_Marasigan_3D
Mon Jan 25, 2021 9:43 pm
Forum: Student Social/Study Group
Topic: CHEM 14B Midterm 1 Notes
Replies: 17
Views: 77

Re: CHEM 14B Midterm 1 Notes

You're a life saver! That's so nice of you. Thank you!
by Sam_Marasigan_3D
Mon Jan 25, 2021 9:36 pm
Forum: Student Social/Study Group
Topic: Where to access past midterms?
Replies: 3
Views: 28

Re: Where to access past midterms?

Yah. I agree with everyone. Sadly, I don't think there is an online test bank.

However, I think attending UA Sessions would be helpful. Some UAs (occasionally) share past midterm problems.
by Sam_Marasigan_3D
Mon Jan 25, 2021 9:25 pm
Forum: Administrative Questions and Class Announcements
Topic: Are all the UA workshops/step up session the same?
Replies: 5
Views: 19

Re: Are all the UA workshops/step up session the same?

I think attending more than one session a week can truly help you practice and hone down your problem solving skills. I personally find the workshops really helpful :)
by Sam_Marasigan_3D
Tue Jan 19, 2021 9:12 pm
Forum: Administrative Questions and Class Announcements
Topic: Midterm 1 Inquiries
Replies: 6
Views: 55

Re: Midterm 1 Inquiries

Yes. I agree with everyone, I think the testing format will be the same. Also, I'm pretty sure Dr. Lavelle will inform us about the exam procedures days before we take it.
by Sam_Marasigan_3D
Tue Jan 19, 2021 9:05 pm
Forum: Non-Equilibrium Conditions & The Reaction Quotient
Topic: Ka vs. Kb
Replies: 30
Views: 87

Re: Ka vs. Kb

Ka = Acidity constant
Kb = Basicity constant

We use them when we're dealing with weak acids and bases.
by Sam_Marasigan_3D
Tue Jan 19, 2021 9:03 pm
Forum: Student Social/Study Group
Topic: Motivation
Replies: 29
Views: 137

Re: Motivation

I space out my studying throughout the week. This method often leaves me feeling less stressed and motivates me to keep going :)
by Sam_Marasigan_3D
Tue Jan 19, 2021 8:56 pm
Forum: Administrative Questions and Class Announcements
Topic: Midterm Exams
Replies: 7
Views: 79

Re: Midterm Exams

Jason_Glass_2L wrote:It will be very similar in format to last years midterms. The only major difference is that it won't be during your discussion time, meaning that everyone is taking the midterm at the same time.
So, midterms will be held during our lecture times?
by Sam_Marasigan_3D
Tue Jan 19, 2021 8:52 pm
Forum: Student Social/Study Group
Topic: Midterm Practice
Replies: 9
Views: 53

Re: Midterm Practice

I agree with everyone. I think UA Workshops are a life saver! They provide you with a lot of practice questions including some past midterm questions as well. Their very accommodating and can easily help you with any questions you may have.
by Sam_Marasigan_3D
Tue Jan 12, 2021 4:33 pm
Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
Topic: Textbook 6B.9 question
Replies: 4
Views: 53

Re: Textbook 6B.9 question

Yes, you're correct! Dr. Lavelle mentioned in his discussion section that it was a typo :)
by Sam_Marasigan_3D
Mon Jan 11, 2021 7:06 pm
Forum: Administrative Questions and Class Announcements
Topic: Le Chatelier's principle on Midterm
Replies: 9
Views: 44

Re: Le Chatelier's principle on Midterm

I believe our constants & equation sheet for Chem 14B is a bit different from Chem14A.
by Sam_Marasigan_3D
Mon Jan 11, 2021 7:02 pm
Forum: Student Social/Study Group
Topic: Study Habits
Replies: 96
Views: 264

Re: Study Habits

After taking Chem 14a, I realized that I didn't fully take advantage of the extra help that was available--outside of lecture. So this quarter I'm trying my best to attend as many sessions as possible. Me too! I only began to go to them the week before the final and am now regretting not fully util...
by Sam_Marasigan_3D
Mon Jan 11, 2021 6:58 pm
Forum: Student Social/Study Group
Topic: Midterms During Lecture
Replies: 44
Views: 210

Re: Midterms During Lecture

Here's the link of the exam schedule: https://lavelle.chem.ucla.edu/wp-conten ... hedule.pdf
by Sam_Marasigan_3D
Mon Jan 11, 2021 6:49 pm
Forum: Student Social/Study Group
Topic: Comfort Movies
Replies: 126
Views: 280

Re: Comfort Movies

I love romcoms a lot! If you do too, I recommend "While you were sleeping" and "Notting Hill"
by Sam_Marasigan_3D
Mon Jan 11, 2021 6:33 pm
Forum: Student Social/Study Group
Topic: Favorite TV shows
Replies: 178
Views: 883

Re: Favorite TV shows

For the past few days, I've been watching a lot of "the good doctor". It's actually pretty interesting. I highly recommend it :)
by Sam_Marasigan_3D
Mon Jan 04, 2021 3:32 pm
Forum: Non-Equilibrium Conditions & The Reaction Quotient
Topic: H2O
Replies: 44
Views: 289

Re: H2O

I believe that we omit H2O in the ICE table due to its liquid state. The concentration does not change.
by Sam_Marasigan_3D
Mon Jan 04, 2021 3:27 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: K vs. Kc
Replies: 15
Views: 80

Re: K vs. Kc

I believe K is just the equilibrium constant. We differentiate it by using Kc or Kp.
by Sam_Marasigan_3D
Mon Jan 04, 2021 3:24 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Pure Substance [ENDORSED]
Replies: 7
Views: 54

Re: Pure Substance [ENDORSED]

Pure substance is a homogenous mixture. It is made up of one type of property.
by Sam_Marasigan_3D
Mon Jan 04, 2021 3:18 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: K vs. Kc/Kp
Replies: 15
Views: 77

Re: K vs. Kc/Kp

I agree with everyone. I think K is just a constant and you can differentiate it by using Kc or Kp.
Kp = gas or atmospheric pressure
Kc = equilibrium concentrations (molarity)
by Sam_Marasigan_3D
Mon Jan 04, 2021 3:12 pm
Forum: Administrative Questions and Class Announcements
Topic: Can I do hw if I don't have sapling yet?
Replies: 16
Views: 105

Re: Can I do hw if I don't have sapling yet?

Don't worry, the first sapling assignment is due midnight Sunday Week 2.
You can also access Sapling learning through the 14 day free trial and enter your code once you receive it.
by Sam_Marasigan_3D
Mon Dec 07, 2020 3:01 pm
Forum: General Science Questions
Topic: 14B enrollment
Replies: 9
Views: 86

Re: 14B enrollment

I think so! Chem14A gave us the foundation of what we’ll learn more in Chem14B ツ
by Sam_Marasigan_3D
Mon Dec 07, 2020 2:58 pm
Forum: Student Social/Study Group
Topic: Recorded Lectures
Replies: 9
Views: 79

Re: Recorded Lectures

I tried logging back in and it worked!
by Sam_Marasigan_3D
Mon Dec 07, 2020 2:56 pm
Forum: Polyprotic Acids & Bases
Topic: Protonated Acid
Replies: 3
Views: 44

Re: Protonated Acid

Protonated or protonation is basically adding a proton to an atom.
An alkaline solution are basic solutions. (pH greater than 7)
by Sam_Marasigan_3D
Mon Dec 07, 2020 2:51 pm
Forum: Student Social/Study Group
Topic: Step-up Sessions in Week 10
Replies: 5
Views: 40

Re: Step-up Sessions in Week 10

Chem_Mod wrote:Step-up sessions, Workshops, and Discussion Sections have covered recent material each week throughout the quarter.

Since it is week 10 they will mainly cover acids and bases.
Oh. I was wondering the same thing. Thank you so much!
by Sam_Marasigan_3D
Mon Dec 07, 2020 2:49 pm
Forum: Naming
Topic: Naming quizlet
Replies: 41
Views: 269

Re: Naming quizlet

Thank you so much (̶◉͛‿◉̶)
by Sam_Marasigan_3D
Mon Nov 30, 2020 1:06 pm
Forum: Naming
Topic: Using ido or o
Replies: 24
Views: 140

Re: Using ido or o

You can use either one. However, since Dr. Lavelle emphasized dropping the -ide and adding -o, I would use this process instead.
by Sam_Marasigan_3D
Mon Nov 30, 2020 1:03 pm
Forum: Biological Examples
Topic: Hemoglobin vs. Myoglobin
Replies: 29
Views: 225

Re: Hemoglobin vs. Myoglobin

Myoglobin is basically a monomeric heme protein established in muscle tissue. Hemoglobin is responsible for binding oxygen and transporting it throughout our body.
by Sam_Marasigan_3D
Mon Nov 30, 2020 12:50 pm
Forum: Naming
Topic: Chlorido vs. chloro
Replies: 11
Views: 97

Re: Chlorido vs. chloro

I agree with everyone! You can use either one. However, Dr. Lavelle specifically emphasized dropping the -ide and adding -o.
by Sam_Marasigan_3D
Mon Nov 30, 2020 12:45 pm
Forum: Bronsted Acids & Bases
Topic: Main Difference
Replies: 8
Views: 200

Re: Main Difference

Lewis acid -> electron acceptor
Lewis base -> electron donor

Bronsted acid -> proton donor
Bronsted base -> proton acceptor
by Sam_Marasigan_3D
Mon Nov 30, 2020 12:42 pm
Forum: Student Social/Study Group
Topic: Final Exam Structure
Replies: 12
Views: 111

Re: Final Exam Structure

I was wondering the same thing. I think Dr. Lavelle will let us know in a couple of days or you can try to ask your TA about it.
by Sam_Marasigan_3D
Mon Nov 23, 2020 2:36 pm
Forum: Administrative Questions and Class Announcements
Topic: Lectures Thanksgiving week
Replies: 8
Views: 72

Re: Lectures Thanksgiving week

About the discussion section, I think you should email your TA just in case :)
by Sam_Marasigan_3D
Mon Nov 23, 2020 2:30 pm
Forum: Student Social/Study Group
Topic: grade worries
Replies: 110
Views: 1174

Re: grade worries

almost_ethan wrote:Does anyone know when we should be receiving our grades for midterm 2?
I don't think there was a specific date mentioned. However, you can try to ask your TA for an update. I think Dr. Lavelle will email us once the grades are out.
by Sam_Marasigan_3D
Mon Nov 23, 2020 2:26 pm
Forum: Student Social/Study Group
Topic: Studying From Home
Replies: 91
Views: 496

Re: Studying From Home

I recently discovered this app called "flora". The app basically helps you to stay away from your phone and focus on your work. This truly helped me to be more productive.
by Sam_Marasigan_3D
Mon Nov 23, 2020 2:16 pm
Forum: Administrative Questions and Class Announcements
Topic: Midterm 2 Grades Chem 14A
Replies: 6
Views: 119

Re: Midterm 2 Grades Chem 14A

I think Dr. Lavelle will email us once the grades are out. But, asking your TA is not a bad idea :)
by Sam_Marasigan_3D
Mon Nov 23, 2020 2:09 pm
Forum: Ionic & Covalent Bonds
Topic: Ionic and Covalent bonds in respect to boiling point
Replies: 8
Views: 47

Re: Ionic and Covalent bonds in respect to boiling point

I agree with everyone. Ionic bonds are typically stronger, thus it requires a higher boiling point.
by Sam_Marasigan_3D
Mon Nov 16, 2020 1:23 pm
Forum: Student Social/Study Group
Topic: Test Anxiety
Replies: 62
Views: 350

Re: Test Anxiety

I try to avoid reviewing the content an hour before the exam. Last minute cramming often just freaks me out. So, prior to the test, I tend to just calm myself down. Also, don't spend too much time on a specific question. Move on and come back to it later.
by Sam_Marasigan_3D
Mon Nov 16, 2020 1:12 pm
Forum: Student Social/Study Group
Topic: Midterm 2 content
Replies: 20
Views: 147

Re: Midterm 2 content

I agree with everyone. Midterm 2 will cover topics after midterm 1. So, equations such as Schrodinger's, Heisenberg's, etc.. are most likely not on the exam. I think Midterm 2 will focus on Quantum numbers and onwards (Electron Configuration, Lewis Structures, etc.)
by Sam_Marasigan_3D
Mon Nov 16, 2020 12:59 pm
Forum: Bond Lengths & Energies
Topic: Hydrogen Bonding
Replies: 13
Views: 68

Re: Hydrogen Bonding

I agree with everyone. I don't think there is an exception.
by Sam_Marasigan_3D
Mon Nov 16, 2020 12:57 pm
Forum: Student Social/Study Group
Topic: Favorite TV shows
Replies: 178
Views: 883

Re: Favorite TV shows

Can Yilgor 1D wrote:Breaking Bad and Black Mirror are among my favorites. I started watching Grey's Anatomy, but I am not sure if I will be able to finish all 16 seasons.
Me too! I just started watching Grey's Anatomy last week. So far, it's pretty good.
by Sam_Marasigan_3D
Mon Nov 16, 2020 12:52 pm
Forum: General Science Questions
Topic: midterm 2
Replies: 6
Views: 74

Re: midterm 2

Yah, I agree with Keeryth. I think going to either step-up or workshop session would be helpful before the midterm.
by Sam_Marasigan_3D
Mon Nov 09, 2020 1:45 pm
Forum: Ionic & Covalent Bonds
Topic: delta + or -
Replies: 12
Views: 71

Re: delta + or -

Delta positive donates electrons and delta negative accepts electrons.
by Sam_Marasigan_3D
Mon Nov 09, 2020 1:23 pm
Forum: Coordinate Covalent Bonds
Topic: Coordinate vs polar covalent
Replies: 10
Views: 272

Re: Coordinate vs polar covalent

A coordinate covalent bond forms when one atom shares an electron pair with another atom. In polar covalent bond, electrons are not equally shared and electronegativity values (to a small degree) are different.
by Sam_Marasigan_3D
Mon Nov 09, 2020 1:16 pm
Forum: Bond Lengths & Energies
Topic: bond lengths
Replies: 9
Views: 37

Re: bond lengths

Some factors that can determine bond length: atomic radius, bond strength, and bond order.
by Sam_Marasigan_3D
Mon Nov 09, 2020 1:08 pm
Forum: Coordinate Covalent Bonds
Topic: Just to clear it up
Replies: 13
Views: 239

Re: Just to clear it up

A bond formed between a Lewis base and a Lewis acid is a coordinate covalent bond.
by Sam_Marasigan_3D
Mon Nov 09, 2020 1:03 pm
Forum: Student Social/Study Group
Topic: Mid-quarter Check in
Replies: 67
Views: 283

Re: Mid-quarter Check in

So far, things have been great! I surprisingly enjoy learning from home.
by Sam_Marasigan_3D
Tue Nov 03, 2020 3:49 pm
Forum: Lewis Structures
Topic: sides
Replies: 12
Views: 133

Re: sides

I agree with everyone! You can place them on any side.
by Sam_Marasigan_3D
Tue Nov 03, 2020 3:40 pm
Forum: Lewis Structures
Topic: Monday Lecture
Replies: 3
Views: 53

Re: Monday Lecture

Yah. I think it was a mistake. I was a bit confused on that too.
by Sam_Marasigan_3D
Tue Nov 03, 2020 3:38 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: F orbitals?
Replies: 21
Views: 109

Re: F orbitals?

Yah. I remember Dr. Lavelle telling us not to worry about the f orbitals.
by Sam_Marasigan_3D
Tue Nov 03, 2020 3:34 pm
Forum: DeBroglie Equation
Topic: De Broglie wavelength vs. wavelength
Replies: 7
Views: 79

Re: De Broglie wavelength vs. wavelength

I agree with everyone. I use the De Broglie wavelength equation when I am dealing with particles (mass of particle & velocity).
by Sam_Marasigan_3D
Tue Nov 03, 2020 3:17 pm
Forum: Einstein Equation
Topic: E=pc vs E=hv
Replies: 15
Views: 160

Re: E=pc vs E=hv

Madeline Ogden 1D wrote:I'm pretty sure you can use whichever one you like and that it just depends on the information that you're given in the problem. Hope this helps!
I agree. It just depends on what the question asks and the given information.
by Sam_Marasigan_3D
Fri Oct 30, 2020 7:38 pm
Forum: *Shrodinger Equation
Topic: Midterm Scores
Replies: 30
Views: 336

Re: Midterm Scores

Oh that makes sense. Thank you @Jiwon_Chae_3J @jadensteplight_3F @SabineSalvucci1C
by Sam_Marasigan_3D
Fri Oct 30, 2020 3:47 pm
Forum: Octet Exceptions
Topic: Octet Exceptions
Replies: 10
Views: 48

Re: Octet Exceptions

I agree with everyone! To make an octet you must have 8 electrons in the valence shell. Hydrogen has 1 valence e-, Helium has 2 valence e-, Lithium has 1 valence e-, and Beryllium has 2 valence e-. It is not enough to make an octet :)
by Sam_Marasigan_3D
Fri Oct 30, 2020 3:34 pm
Forum: Student Social/Study Group
Topic: How to relax
Replies: 115
Views: 603

Re: How to relax

I love to watch movies, cook, and listen to podcasts :>
by Sam_Marasigan_3D
Fri Oct 30, 2020 3:30 pm
Forum: *Shrodinger Equation
Topic: Midterm Scores
Replies: 30
Views: 336

Re: Midterm Scores

SLai_1I wrote:I think everyone will finish by tonight, so hopefully soon. I read that someone mentioned something about partial credit. How would that work?
Yah. I was wondering the same thing. Does anyone know?
by Sam_Marasigan_3D
Fri Oct 30, 2020 3:25 pm
Forum: Administrative Questions and Class Announcements
Topic: Practice Exams
Replies: 8
Views: 86

Re: Practice Exams

I would strongly suggest reviewing the textbook outline problems, they facilitate how to approach a problem. Theres answer key for the textbook problems so that you could see how they work out the answer if you're unsure of how to approach a problem; Hope this helped :) Hi! I agree. This is an effe...
by Sam_Marasigan_3D
Fri Oct 30, 2020 3:09 pm
Forum: DeBroglie Equation
Topic: When to Use De Broglie
Replies: 16
Views: 127

Re: When to Use De Broglie

You use the de Broglie wave equation when the problem involves mass (m) and/or velocity (v).
by Sam_Marasigan_3D
Fri Oct 23, 2020 12:03 am
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: Advice for studying
Replies: 92
Views: 2109

Re: Advice for studying

Testing yourself frequently on the concepts is a great strategy to use!
by Sam_Marasigan_3D
Thu Oct 22, 2020 11:57 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: Midterm 1
Replies: 5
Views: 81

Re: Midterm 1

According to Dr. Lavelle, Quantum numbers and orbitals will not be on the 1st midterm.
by Sam_Marasigan_3D
Thu Oct 22, 2020 11:51 pm
Forum: Student Social/Study Group
Topic: How are you studying?
Replies: 203
Views: 1296

Re: How are you studying?

I test myself frequently. Whether that's lecture concepts or giving myself a set of problems to do, testing oneself can be a good strategy to use.
by Sam_Marasigan_3D
Thu Oct 22, 2020 11:44 pm
Forum: Molarity, Solutions, Dilutions
Topic: What does mmol stand for?
Replies: 33
Views: 333

Re: What does mmol stand for?

Thousandth of a mole = mmol
by Sam_Marasigan_3D
Thu Oct 22, 2020 11:41 pm
Forum: Photoelectric Effect
Topic: Intensity vs. Frequency
Replies: 22
Views: 140

Re: Intensity vs. Frequency

The intensity of light is basically the number of photons falling on a certain area.
by Sam_Marasigan_3D
Wed Oct 14, 2020 11:21 pm
Forum: Photoelectric Effect
Topic: Amplitude and Intensity
Replies: 6
Views: 64

Re: Amplitude and Intensity

I agree with everyone! Amplitude increases = an increase to the number of photons.
by Sam_Marasigan_3D
Wed Oct 14, 2020 11:12 pm
Forum: General Science Questions
Topic: Balancing equations
Replies: 17
Views: 156

Re: Balancing equations

I agree with everyone! There isn't really one way of balancing an equation. However, in most chemical equations, I tend to leave the Oxygen atoms and/or Hydrogen atoms at the very last. I balance the other molecules first.
by Sam_Marasigan_3D
Wed Oct 14, 2020 11:03 pm
Forum: Student Social/Study Group
Topic: iPad vs Paper notes
Replies: 32
Views: 280

Re: iPad vs Paper notes

Hello! In my opinion, it is worth it! I've never lost a page of work ever since I switched to digital note taking, which is incredible. Also, viewing your notes will be a lot more convenient. I use both Notability and Notion to organize my lecture notes and assignments.
by Sam_Marasigan_3D
Wed Oct 14, 2020 10:41 pm
Forum: *Black Body Radiation
Topic: What is Black Body?
Replies: 35
Views: 565

Re: What is Black Body?

A black body absorbs all energy/radiation (light) that falls on it.
by Sam_Marasigan_3D
Wed Oct 14, 2020 10:37 pm
Forum: Einstein Equation
Topic: m vs nm
Replies: 66
Views: 462

Re: m vs nm

Dr. Lavelle informed us that it is alright to leave your answers in meters. However, if the question specifically asks for nanometers, then convert it :)
by Sam_Marasigan_3D
Fri Oct 09, 2020 7:22 pm
Forum: Administrative Questions and Class Announcements
Topic: Petition to Bring Music Back To Lectures [ENDORSED]
Replies: 34
Views: 541

Re: Petition to Bring Music to Back To Lectures [ENDORSED]

I agree with everyone! The intro definitely helps me get situated.
by Sam_Marasigan_3D
Fri Oct 09, 2020 7:05 pm
Forum: Molarity, Solutions, Dilutions
Topic: Molarity test question
Replies: 8
Views: 86

Re: Molarity test question

Yes. By using the dilution equation, you can solve for any variable the question is asking for (whether that's initial molarity, initial volume, final molarity, or final volume).
by Sam_Marasigan_3D
Fri Oct 09, 2020 6:49 pm
Forum: SI Units, Unit Conversions
Topic: Temperature
Replies: 14
Views: 112

Re: Temperature

I agree with Colin. Back in my AP Chem class, I almost never encountered a question that contained Fahrenheit as its temperature. It's always either Kelvin or Celsius.
by Sam_Marasigan_3D
Fri Oct 09, 2020 6:25 pm
Forum: Empirical & Molecular Formulas
Topic: Using Mass of Elements when Calculating Molar Mass
Replies: 9
Views: 43

Re: Using Mass of Elements when Calculating Molar Mass

I agree with Hannah. Using the periodic table that Dr. Lavelle provided us would be a safe bet. Also, when calculating molar mass, I think it would be best to include most of the element's decimal places. By doing so, you'll get more accurate results.
by Sam_Marasigan_3D
Fri Oct 09, 2020 1:07 am
Forum: Balancing Chemical Reactions
Topic: Balancing Chemical Reactions Order
Replies: 31
Views: 248

Re: Balancing Chemical Reactions Order

Hi! like what Madilyn said, there isn't really a specific order that you must follow in order to balance an equation. However, a friend told me once, that in most chemical equations, it's ideal to leave the Oxygen atoms and/or Hydrogen atoms at the very last. Try to balance the other molecules first.

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