Search found 88 matches

by StephanieGrigorian2J
Sun Feb 21, 2021 11:48 pm
Forum: Student Social/Study Group
Topic: Fave food
Replies: 99
Views: 204

Re: Fave food

ok don't come at me for this but heirloom tomatoes and some burrata. Honestly any cheese+tomato combo slaps. I also highly recommend the feta-pasta thing all over tik tok, SO GOOD I've been wanting to try this omg. Some people make it look really good and some just doesn't look good at all so I'm t...
by StephanieGrigorian2J
Sun Feb 21, 2021 11:45 pm
Forum: Student Social/Study Group
Topic: Students Who Have a Job
Replies: 75
Views: 314

Re: Students Who Have a Job

Hi! I definitely know what you're talking about because I work 20 hours a week and it SUCKS. I'm especially worried for next quarter where I'm taking 5 classes so I'm going to try to cut back to 15 hours a week and hopefully it will help. It does get difficult to stay on top of things but I try to h...
by StephanieGrigorian2J
Sun Feb 21, 2021 11:40 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: fun way to remember anode and cathode
Replies: 16
Views: 56

Re: fun way to remember anode and cathode

Thank you so much! I was kinda having a little trouble with it and this helped!
by StephanieGrigorian2J
Sun Feb 21, 2021 11:39 pm
Forum: Student Social/Study Group
Topic: We made it through Midterm 2!
Replies: 58
Views: 163

Re: We made it through Midterm 2!

Yay! I'm looking forward to a fun day tomorrow that's long over due!
by StephanieGrigorian2J
Sun Feb 21, 2021 11:38 pm
Forum: Student Social/Study Group
Topic: Fave food
Replies: 99
Views: 204

Re: Fave food

I love sushi and any pasta!
by StephanieGrigorian2J
Sun Feb 14, 2021 5:50 pm
Forum: Administrative Questions and Class Announcements
Topic: Midterm 2 Question #
Replies: 5
Views: 37

Re: Midterm 2 Question #

I read it too and didn't see anything that said how many questions there would be. I was specifically looking for how many questions there would be and didn't see it. I only saw that there would be questions worth 4 and 8 points.
by StephanieGrigorian2J
Sun Feb 14, 2021 5:47 pm
Forum: Student Social/Study Group
Topic: Valentine's Day Long Weekend!
Replies: 28
Views: 87

Re: Valentine's Day Long Weekend!

That was so cute! Happy Valentines Day to everyone! <3
by StephanieGrigorian2J
Sun Feb 14, 2021 4:43 pm
Forum: Student Social/Study Group
Topic: Fav Shows of the Moment
Replies: 98
Views: 219

Re: Fav Shows of the Moment

I'm almost finished with New Girl :)
by StephanieGrigorian2J
Sun Feb 14, 2021 4:25 pm
Forum: Student Social/Study Group
Topic: Balance / Self Care Tips
Replies: 41
Views: 105

Re: Balance / Self Care Tips

I definitely find myself having the same problem. I also work a lot so finding time for myself while trying to study and do well on exams is difficult! I'm still trying to find time to relax and figure it out!
by StephanieGrigorian2J
Sun Feb 14, 2021 4:22 pm
Forum: Student Social/Study Group
Topic: Classes for next quarter?
Replies: 127
Views: 411

Re: Classes for next quarter?

I'm trying to enroll in Chem 14BL, LS23L, and LS 110 along with 2 other psych courses.
by StephanieGrigorian2J
Fri Feb 05, 2021 10:17 pm
Forum: Administrative Questions and Class Announcements
Topic: tips if you're struggling!
Replies: 61
Views: 340

Re: tips if you're struggling!

This is so helpful, thank you so much! :) I've personally struggled with when to do the textbook problems because they are a good method to check your understanding as we go through the material, but it also seems smart to do all of them closer to the exam. That being said, it's difficult to find t...
by StephanieGrigorian2J
Fri Feb 05, 2021 10:12 pm
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: Sapling Week 3 and 4 #8
Replies: 4
Views: 18

Re: Sapling Week 3 and 4 #8

Thank you so much guys!
by StephanieGrigorian2J
Fri Feb 05, 2021 7:52 pm
Forum: Student Social/Study Group
Topic: Silly Mistakes?
Replies: 60
Views: 283

Re: Silly Mistakes?

This gave me a different perspective wow! Thank you for sharing this :)
by StephanieGrigorian2J
Fri Feb 05, 2021 7:50 pm
Forum: General Science Questions
Topic: Midterm 1 Reactions
Replies: 70
Views: 351

Re: Midterm 1 Reactions

I was also feeling confident going into the exam but it was much harder than expected and I'm not happy with the results. I know the next one is going to be even harder too :(
by StephanieGrigorian2J
Fri Feb 05, 2021 7:47 pm
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: Sapling Week 3 and 4 #8
Replies: 4
Views: 18

Sapling Week 3 and 4 #8

Hi guys! Can anyone help with the last part of this question? I was able to do the first 2 parts but can't seem to figure out the last one.
Calculate the amount of CS2 (in grams) produced when 379 kJ of heat is absorbed.
by StephanieGrigorian2J
Wed Feb 03, 2021 10:08 am
Forum: Administrative Questions and Class Announcements
Topic: Chemistry Community Posts
Replies: 17
Views: 57

Re: Chemistry Community Posts

Okay thank you so much guys!
by StephanieGrigorian2J
Wed Feb 03, 2021 10:05 am
Forum: Student Social/Study Group
Topic: Test curve?
Replies: 24
Views: 116

Re: Test curve?

Last quarter there was no curve unfortunately so I would be very surprised if he did decide to curve the midterm.
by StephanieGrigorian2J
Wed Feb 03, 2021 10:02 am
Forum: Student Social/Study Group
Topic: Midterm Scores
Replies: 25
Views: 138

Re: Midterm Scores

Professor sent out an email that the scores should be released late Wednesday (2/3).
by StephanieGrigorian2J
Tue Feb 02, 2021 10:07 am
Forum: Student Social/Study Group
Topic: Go treat yourself after MT1!
Replies: 75
Views: 302

Re: Go treat yourself after MT1!

After the midterm I didn't really have time to relax because I have another midterm on Tuesday :/ but hopefully I can take a break soon because I also work like crazy!
by StephanieGrigorian2J
Tue Feb 02, 2021 10:03 am
Forum: Administrative Questions and Class Announcements
Topic: Weeks 3 and 4 Sapling HW
Replies: 5
Views: 27

Re: Weeks 3 and 4 Sapling HW

Dr. Lavelle changed the due date to Sunday of week 5 so you should be fine and be able to complete it.
by StephanieGrigorian2J
Mon Feb 01, 2021 3:33 pm
Forum: Administrative Questions and Class Announcements
Topic: Chemistry Community Posts
Replies: 17
Views: 57

Chemistry Community Posts

What happens if we miss a week of chemistry community posts? Is there a way to make it up like last quarter?
by StephanieGrigorian2J
Sun Jan 24, 2021 7:23 pm
Forum: Phase Changes & Related Calculations
Topic: State Changes
Replies: 4
Views: 37

Re: State Changes

I don't think we would have to memorize any values like that. I think they would be given on the exam.
by StephanieGrigorian2J
Sun Jan 24, 2021 7:16 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Sapling Week 2 #5
Replies: 4
Views: 47

Sapling Week 2 #5

Hi! For this problem I got the correct initial value of amine but I couldn't figure out the percentage of amine protonated. My main question is why do we have to add [BH+] and [B]? It also says in the solution that the formal concentration of B is the sum of the concentrations B and BH+. Can someone...
by StephanieGrigorian2J
Sun Jan 24, 2021 6:58 pm
Forum: Student Social/Study Group
Topic: Favorite Music
Replies: 104
Views: 286

Re: Favorite Music

I mostly listen to alternative and neo-psychedelic/soul music (Tame Impala, Dayglow, Khalid etc) or anything that just makes me feel good! But I've been listening to Frank Ocean, Brent Faiyaz, and Harry Styles lately :)
by StephanieGrigorian2J
Sun Jan 24, 2021 6:48 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Textbook #4D.15
Replies: 2
Views: 26

Re: Textbook #4D.15

I'm also very confused on this problem! I was confused on how they generated the 3 equations in the answer key in order to get to the answer. It looks like they took each reactant/product and added oxygen in order to get carbon dioxide and water as a product? Can someone further explain this?
by StephanieGrigorian2J
Sun Jan 24, 2021 6:42 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: 4D23
Replies: 3
Views: 46

Re: 4D23

I would recommend starting by first arranging the reactions given in a way that will leave you with N2O5, dinitrogen pentoxide. To do this, we have to multiply 2 NO(g) + O2(g) --> 2 NO2(g) H°= -114.1 kJ by 2 so that the NO2 (g) will cancel. This leaves us with 4 NO(g) + 2O2(g) --> 4 NO2(g) H°= 4(-1...
by StephanieGrigorian2J
Sun Jan 17, 2021 8:31 pm
Forum: Student Social/Study Group
Topic: New Joke Chain
Replies: 46
Views: 197

Re: New Joke Chain

Na: "That was sodium funny!"
Ne: "I slapped my neon that one"
by StephanieGrigorian2J
Sun Jan 17, 2021 8:23 pm
Forum: Student Social/Study Group
Topic: Study Strategies
Replies: 31
Views: 59

Re: Study Strategies

In addition to everything, I would also read the textbook and make brief study guides just so I can understand the conceptual stuff for the exams!
by StephanieGrigorian2J
Sun Jan 17, 2021 8:15 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: ICE table equilibrium
Replies: 8
Views: 37

Re: ICE table equilibrium

Hi! I think I know what you are talking about. So in most situations, the reactants will be subtracted from (-x) because it is losing whatever amount to form the product and the product will be addition due to gaining/forming. The instance in which the reactants and Products switch signs could be d...
by StephanieGrigorian2J
Sun Jan 17, 2021 7:53 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: ICE table equilibrium
Replies: 8
Views: 37

ICE table equilibrium

Hi! I'm having a little trouble with the change in molarity portion of the ICE table. On most examples we do in lecture and the textbook, the change is usually -x or -2x for the reactants side, but sometimes I encounter a +x or +2x on the reactants side on the textbook problems and Sapling homework....
by StephanieGrigorian2J
Sat Jan 16, 2021 2:13 pm
Forum: Administrative Questions and Class Announcements
Topic: cannot login to sapling
Replies: 4
Views: 27

Re: cannot login to sapling

I had this same issue! I was using Safari as my browser but then I used Chrome and it worked!
by StephanieGrigorian2J
Sun Jan 10, 2021 8:40 pm
Forum: Ideal Gases
Topic: Ideal Gas Equation units
Replies: 4
Views: 29

Re: Ideal Gas Equation units

I believe the most common unit for P that we are going to use is atm/bar.
V = Liters
n = moles
R = J.K.mol, L.atm.K.mol, L.bar.K.mol, L.Torr.K.mol
T = Kelvin
by StephanieGrigorian2J
Sun Jan 10, 2021 8:22 pm
Forum: Student Social/Study Group
Topic: Comfort Movies
Replies: 128
Views: 343

Re: Comfort Movies

My comfort movies include any Shrek movie (which is ahead of its time) and anything with either Will Ferrell (Megamind/Step Brothers) in it or Adam Sandler for a funny movie. For TV shows I'm currently binging on New Girl.
by StephanieGrigorian2J
Sun Jan 10, 2021 6:12 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: K vs Kc
Replies: 9
Views: 54

Re: K vs Kc

Correct me if I'm wrong, but I believe that Kc is just a more specific way to describe K. However, if you want to convert between Kc and Kp, then I think the equation is Kp= Kc(RT)^delta(n), where delta n is the change in the number of moles (moles of products - moles of reactants). So calculating ...
by StephanieGrigorian2J
Sun Jan 10, 2021 5:56 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: K vs Kc
Replies: 9
Views: 54

K vs Kc

Can someone explain how to convert between K and Kc? This was mentioned in the textbook and I'm confused on how to do this/what this means.
by StephanieGrigorian2J
Sun Jan 10, 2021 5:49 pm
Forum: General Science Questions
Topic: midterm/final
Replies: 12
Views: 62

Re: midterm/final

It looks like it should be the same but since its less points compared to 14A it might be less questions that are just worth a little more.
by StephanieGrigorian2J
Sun Dec 13, 2020 2:04 am
Forum: Student Social/Study Group
Topic: Plans for Relaxing After Finals
Replies: 98
Views: 561

Re: Plans for Relaxing After Finals

I'm going to Big Bear to ski and finally get some runs in right after finals are over! And I'm basically going to be working for most of those two weeks so not really any relaxing time to myself unfortunately :/
by StephanieGrigorian2J
Sun Dec 13, 2020 1:57 am
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Recognizing ligand binding sites
Replies: 5
Views: 56

Re: Recognizing ligand binding sites

A monodentate will bind at only one site (donating one electron pair as it binds) while a bidentate will bind at two sites (donating two electron pairs as it binds). tridentate = 3 sites hexadentate = 6 sites Keep in mind that bidentate, tridentate, and hexadentate ligands are also chelating ligands...
by StephanieGrigorian2J
Sat Dec 12, 2020 7:04 pm
Forum: Properties of Light
Topic: wave properties of light
Replies: 4
Views: 47

Re: wave properties of light

I think you're referring to the experiment that showed diffraction patterns, that light can act like a wave by constructive and deconstructive interference.
by StephanieGrigorian2J
Sat Dec 12, 2020 7:02 pm
Forum: Acidity & Basicity Constants and The Conjugate Seesaw
Topic: Protonation
Replies: 4
Views: 40

Re: Protonation

Strong bases fully protonate, meaning almost all the basic molecules in the solution gain a proton. Strong acids fully deprotonate, meaning almost all acidic molecules (all molecules of HCL for example) lose their hydrogen atoms. Weak acids and bases incompletely deprotonate and protonate, meaning t...
by StephanieGrigorian2J
Sat Dec 12, 2020 6:57 pm
Forum: Student Social/Study Group
Topic: Study music
Replies: 32
Views: 226

Re: Study music

^^ I use the same! It has no lyrics and its just relaxing music and it really helps me stay focused.
by StephanieGrigorian2J
Sun Dec 06, 2020 7:55 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 8753
Views: 1489577

Re: Post All Chemistry Jokes Here

I blew up my chemistry experiment.
Oxidants happen.
by StephanieGrigorian2J
Sun Dec 06, 2020 7:51 pm
Forum: Formal Charge and Oxidation Numbers
Topic: Sapling Question #5
Replies: 3
Views: 52

Re: Sapling Question #5

I'm assuming this would be given on the exam along with the names of compounds that we are not familiar with.
by StephanieGrigorian2J
Sun Dec 06, 2020 7:44 pm
Forum: Lewis Acids & Bases
Topic: Weak/ Strong Acids and Bases
Replies: 6
Views: 53

Re: Weak/ Strong Acids and Bases

Hi! I'm assuming we are expected to know how to determine if an acid and base is strong/weak for the final exam. Strong acids/bases are almost completely ionized while weak acids/bases are incompletely ionized in solution. Strong acids also lose H+ easily and have a weaker (longer) bond as H+ would ...
by StephanieGrigorian2J
Sun Dec 06, 2020 7:35 pm
Forum: Properties & Structures of Inorganic & Organic Acids
Topic: Negative pH of acid
Replies: 16
Views: 85

Re: Negative pH of acid

A negative pH is possible as a very strong acid can go below 0, but for the purposes of the class I'm assuming the scale is going to be from 0-14.
by StephanieGrigorian2J
Sun Dec 06, 2020 7:25 pm
Forum: Student Social/Study Group
Topic: final study
Replies: 42
Views: 176

Re: final study

I'm going to put most of my focus in the textbook problems and making sure I understand how to do them since the final questions are going to come from the textbook. I'm also going to go through the textbook readings as well as lecture notes in addition to the many review sessions provided!
by StephanieGrigorian2J
Sun Nov 29, 2020 10:11 pm
Forum: General Science Questions
Topic: curve
Replies: 16
Views: 172

Re: curve

Some of my classes in the past also mentioned that there would be a curve at the end in order for there to be a certain percentage of students to get an A and a B in the class but I highly doubt he will be doing that in this class.
by StephanieGrigorian2J
Sun Nov 29, 2020 10:09 pm
Forum: Student Social/Study Group
Topic: Final Exam Questions
Replies: 1
Views: 15

Re: Final Exam Questions

I'm assuming a large majority of questions will be based on the material that we haven't been tested on yet (outline 4-6) and the rest will be review from other outlines but I'm not entirely sure.
by StephanieGrigorian2J
Sun Nov 29, 2020 10:05 pm
Forum: General Science Questions
Topic: study methods/recs
Replies: 37
Views: 330

Re: study methods/recs

I usually try to create a study guide that's compiled of both lecture notes and any notes from the textbook. I mostly use the textbook and sapling for problems and for extra help I sometimes attend UA sessions. For things that need further clarification I try to watch youtube videos that will help.
by StephanieGrigorian2J
Sun Nov 29, 2020 9:22 pm
Forum: Student Social/Study Group
Topic: Grading Scale for Chem14A
Replies: 29
Views: 321

Re: Grading Scale for Chem14A

I believe that 90% should be the cutoff for receiving an A of any kind. But in some classes I took in the past they curved the final grades so that there could be a specific percentage of students with an A and a B and so forth. But I'm not sure how he's going to go about that.
by StephanieGrigorian2J
Sun Nov 29, 2020 9:19 pm
Forum: Student Social/Study Group
Topic: Studying for Final Exam
Replies: 57
Views: 392

Re: Studying for Final Exam

I'm going to re-do all the practice problems and go through my textbook notes again as well as look at the Sapling problems. I'll also be attending some of the review sessions during some step-up sessions in addition to looking at lectures for further clarification.
by StephanieGrigorian2J
Sun Nov 22, 2020 3:47 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 8753
Views: 1489577

Re: Post All Chemistry Jokes Here

Anyone know any good jokes about sodium?

Na.
by StephanieGrigorian2J
Sun Nov 22, 2020 3:45 pm
Forum: Dipole Moments
Topic: Trans-dichloroethene
Replies: 5
Views: 17

Re: Trans-dichloroethene

Because the vectors are pointing towards the chlorines in different/opposite directions, the trans-dichloroethene molecule has dipoles that cancel because of these vectors pointing in opposite directions. The cis-dichloroethene however, has two vectors that are pointing in the same direction and mak...
by StephanieGrigorian2J
Sun Nov 22, 2020 3:38 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Memorizing Shape Names
Replies: 12
Views: 93

Re: Memorizing Shape Names

I would think of it by making associations with the actual name and the shape. For example, trigonal has the prefix "tri-" which means three, and there are 3 atoms around the central atom for a trigonal shape. Tetrahedral has the prefix "tetra-" which means four, and there are 4 ...
by StephanieGrigorian2J
Sun Nov 22, 2020 3:35 pm
Forum: Student Social/Study Group
Topic: Exercising Our Minds and Bodies
Replies: 114
Views: 600

Re: Exercising Our Minds and Bodies

I'm usually too busy exercising my mind because of school work load more than my body but when I do it's usually just taking casual walks to get out of the house. These comments have given me some ideas though :)
by StephanieGrigorian2J
Sun Nov 22, 2020 2:56 pm
Forum: Student Social/Study Group
Topic: Post Midterm Blues
Replies: 71
Views: 653

Re: Post Midterm Blues

I definitely feel like I made silly mistakes on both midterms and all I can do is try to minimize that for the final and hopefully it will make up for it and pay off in the end. But I'm feeling a little discouraged in terms of grades too!
by StephanieGrigorian2J
Sun Nov 15, 2020 11:33 pm
Forum: Resonance Structures
Topic: Resonance of Hydrogen phosphate
Replies: 2
Views: 16

Re: Resonance of Hydrogen phosphate

I was also wondering why the hydrogen isn't bound to P but instead is bound to one of the oxygen atoms. Does it have something to do with formal charges or is it just this specific example where H is bound to oxygen instead of phosphorus?
by StephanieGrigorian2J
Sun Nov 15, 2020 9:51 pm
Forum: Lewis Structures
Topic: Brackets
Replies: 9
Views: 52

Re: Brackets

The brackets are there to signify that the molecule has an overall positive or negative charge.
by StephanieGrigorian2J
Sun Nov 15, 2020 9:50 pm
Forum: Ionic & Covalent Bonds
Topic: Bond Length
Replies: 6
Views: 43

Re: Bond Length

Shorter bond lengths mean that the bond is much stronger because it's harder to break and its less reactive. Longer bond lengths are much weaker and are easily broken. Longer bond lengths are due to the atomic radius of a specific atom. For example, when comparing an H-F bond with a H-I bond, Iodine...
by StephanieGrigorian2J
Sun Nov 15, 2020 9:41 pm
Forum: General Science Questions
Topic: Midterm 2
Replies: 12
Views: 94

Re: Midterm 2

It will cover 1D through 1F, 2A through 2D, and 3F.4 and 3F.5 in the textbook.
by StephanieGrigorian2J
Sun Nov 15, 2020 9:39 pm
Forum: Ionic & Covalent Bonds
Topic: midterm 2: knowing compounds
Replies: 14
Views: 80

Re: midterm 2: knowing compounds

I believe compound names would be provided for us on the midterm exam.
by StephanieGrigorian2J
Mon Nov 09, 2020 9:27 am
Forum: Administrative Questions and Class Announcements
Topic: Discussion Week 6 [ENDORSED]
Replies: 10
Views: 203

Re: Discussion Week 6 [ENDORSED]

Is the lecture for today posted yet? I don't see it.
by StephanieGrigorian2J
Sun Nov 08, 2020 11:10 pm
Forum: Administrative Questions and Class Announcements
Topic: Midterm 1 answer key
Replies: 13
Views: 108

Re: Midterm 1 answer key

I think the best we could do is go to TA office hours for clarification with midterm 1 questions.
by StephanieGrigorian2J
Sun Nov 08, 2020 11:08 pm
Forum: Administrative Questions and Class Announcements
Topic: Midterm 2 [ENDORSED]
Replies: 11
Views: 138

Re: Midterm 2 [ENDORSED]

In the email the professor sent out regarded Midterm 1 he said that it was an easy start to the quarter so I'm assuming the second exam is going to be a bit harder.
by StephanieGrigorian2J
Sun Nov 08, 2020 11:06 pm
Forum: Student Social/Study Group
Topic: Midterm 2 Study Group
Replies: 25
Views: 164

Re: Midterm 2 Study Group

This would definitely help out a lot! Thank you so much!!
by StephanieGrigorian2J
Sun Nov 08, 2020 11:05 pm
Forum: Student Social/Study Group
Topic: Mid-quarter Check in
Replies: 67
Views: 294

Re: Mid-quarter Check in

Honestly not doing as well as I would have hoped especially on the last midterm. The online format makes focusing really difficult and I have much less motivation than I did before. Miss being in class on campus :(
by StephanieGrigorian2J
Sun Nov 08, 2020 11:03 pm
Forum: Student Social/Study Group
Topic: midterm
Replies: 6
Views: 65

Re: midterm

I don't believe there is going to be a separate session to review the midterm other than stopping by your TAs office hours. My TA said if you click on the midterm on CCLE it should show correct answers and the solutions.
by StephanieGrigorian2J
Sun Nov 01, 2020 8:45 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: Sapling #4
Replies: 8
Views: 76

Re: Sapling #4

Thank you so much for the help guys! :)
by StephanieGrigorian2J
Sun Nov 01, 2020 8:40 pm
Forum: Properties of Light
Topic: Sapling #10
Replies: 11
Views: 97

Re: Sapling #10

Maybe the problem could be in the accuracy of rounding and sig figs?
by StephanieGrigorian2J
Sun Nov 01, 2020 8:32 pm
Forum: Properties of Light
Topic: Sapling #10
Replies: 11
Views: 97

Re: Sapling #10

I'm having this same issue! I seem to be doing the same process and Sapling keeps saying that the answer is incorrect. Any help would be much appreciated!
by StephanieGrigorian2J
Sun Nov 01, 2020 8:29 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: Sapling #4
Replies: 8
Views: 76

Sapling #4

HI! I was able to do the first part of this question by finding the work function but I can't seem to figure out the second question: "A metal was exposed to photons at a frequency of 1.11x10^-15 s^-1, electrons were emitted with a maximum kinetic energy of 3.60x10^-19 J. Calculate the work fun...
by StephanieGrigorian2J
Sun Nov 01, 2020 7:42 pm
Forum: Student Social/Study Group
Topic: Midterm 1
Replies: 4
Views: 41

Re: Midterm 1

I don't think we will be reviewing them during our discussion sections but I'm sure that TA office ours will be dedicated to reviewing exam questions!
by StephanieGrigorian2J
Sun Nov 01, 2020 7:34 pm
Forum: Student Social/Study Group
Topic: Halloween!!!
Replies: 54
Views: 349

Re: Halloween!!!

We went to a pumpkin patch and picked out our own pumpkins to carve! We also watched Harry Potter and exchanged spooky baskets!
by StephanieGrigorian2J
Sun Oct 25, 2020 9:51 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: Midterm 1 Prep
Replies: 9
Views: 101

Re: Midterm 1 Prep

Don't forget the whole Fundamentals section that was covered within the first week of class!
by StephanieGrigorian2J
Sun Oct 25, 2020 6:30 pm
Forum: Administrative Questions and Class Announcements
Topic: Midterm scratch work
Replies: 8
Views: 49

Re: Midterm scratch work

I'm assuming you would just have to show your TA both sides of your extra scratch paper to make sure its blank. There will be no partial credit since the format of the exam is going to be shorter questions instead of having multiple parts to each question to accommodate for partial credit.
by StephanieGrigorian2J
Sun Oct 25, 2020 5:16 pm
Forum: Properties of Light
Topic: Textbook Questions and Midterm
Replies: 6
Views: 61

Re: Textbook Questions and Midterm

Dr. Lavelle stated in the email he sent out that the midterm covers up until 1D.2 in the textbook, so I'm assuming either just the first question or couple of questions since most of the problems go beyond what we are responsible for.
by StephanieGrigorian2J
Sun Oct 25, 2020 1:58 pm
Forum: Administrative Questions and Class Announcements
Topic: CCLE DOWN
Replies: 6
Views: 92

Re: CCLE DOWN

I'm having the same problem! I logged in through the Sapling website directly and it worked! Thanks for the tip :)
by StephanieGrigorian2J
Sun Oct 25, 2020 1:57 pm
Forum: Empirical & Molecular Formulas
Topic: Periodic Table and Calculations
Replies: 20
Views: 168

Re: Periodic Table and Calculations

Are we able to use more scratch paper than just the backs of the periodic table and constants worksheet for the midterm?
by StephanieGrigorian2J
Sun Oct 18, 2020 5:04 pm
Forum: Properties of Light
Topic: Conversion Factor - m to nm
Replies: 6
Views: 58

Re: Conversion Factor - m to nm

This is also given on the constants and equations sheet on the class website (which I'm also assuming will be given to us on the exam so we wouldn't have to memorize this specific conversion).
by StephanieGrigorian2J
Sun Oct 18, 2020 4:59 pm
Forum: SI Units, Unit Conversions
Topic: Midterm
Replies: 26
Views: 230

Re: Midterm

I don't really see how they can give partial credit for the exams so I'm also assuming that it's going to be multiple choice! I'm not sure if they are going to give fill-ins for the exams.
by StephanieGrigorian2J
Sun Oct 18, 2020 4:11 pm
Forum: Administrative Questions and Class Announcements
Topic: Exams
Replies: 12
Views: 99

Re: Exams

Do you guys have any idea how partial credit is going to be awarded to us on exams since everything is online? Is there even going to be any partial credit?
by StephanieGrigorian2J
Sun Oct 18, 2020 4:06 pm
Forum: Administrative Questions and Class Announcements
Topic: Exams
Replies: 12
Views: 99

Re: Exams

There will be a sheet given to us with constants and equations on the exam so we won't have to memorize those. This sheet could be found on the website under "Constants and Equations."
by StephanieGrigorian2J
Thu Oct 15, 2020 12:15 am
Forum: Photoelectric Effect
Topic: Focus 1A Problem 15
Replies: 1
Views: 36

Focus 1A Problem 15

In the ultraviolet spectrum of atomic hydrogen, a line is observed at 102.6 nm. Determine the values of n for the initial and final energy levels of the electron during the emission of energy that leads to this spectral line. Can someone try to explain how to solve this problem? I understand how to ...
by StephanieGrigorian2J
Fri Oct 09, 2020 10:12 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

On some of the Sapling homework problems I got some of them wrong because they used more precise rounding, so I'm hoping that won't be an issue in future exams. Just to be safe I've been using all of the decimal places just so I can avoid this problem, except for common elements used in problems lik...
by StephanieGrigorian2J
Fri Oct 09, 2020 10:08 pm
Forum: Administrative Questions and Class Announcements
Topic: Midterm(s?)
Replies: 6
Views: 58

Re: Midterm(s?)

Hi! Here is what I found on the class website: It says that exams will be TA proctored to assist us with any questions we may have and that the professor doesn't directly get involved with the exam proctoring. That's all the information about the midterms that is currently available to us though :( ...
by StephanieGrigorian2J
Fri Oct 09, 2020 10:02 pm
Forum: Accuracy, Precision, Mole, Other Definitions
Topic: Stochiometric Coefficients
Replies: 6
Views: 63

Re: Stochiometric Coefficients

Stoichiometric coefficients are simply the numbers multiplying chemical formulas in a chemical equation, and I don't believe that they are measured in moles. These coefficients show how many formula units or molecules are present (how many NaCl molecules there are for example). They're used to balan...
by StephanieGrigorian2J
Fri Oct 09, 2020 9:26 pm
Forum: Molarity, Solutions, Dilutions
Topic: Fundamentals G: Precipitation
Replies: 1
Views: 41

Fundamentals G: Precipitation

Hi!
Can someone explain what exactly the concept of precipitation means? It states that precipitation is when a solute comes out of a solution rapidly as a finely defined powder but I'm not sure how the example of lead iodide in the video pertains to that concept?
by StephanieGrigorian2J
Thu Oct 08, 2020 12:11 am
Forum: Empirical & Molecular Formulas
Topic: Sapling Hw Week 1 #10
Replies: 20
Views: 303

Re: Sapling Hw Week 1 #10

How do we know that the ratio for the problem is 1 to 1 to 1? Are we just assuming this or do we have to figure that out? If so, how do we find the ratio?

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