Search found 61 matches

by Jchellis 1I
Sat Mar 16, 2019 11:12 pm
Forum: Administrative Questions and Class Announcements
Topic: Morris Review
Replies: 4
Views: 99

Re: Morris Review

Thank you!
by Jchellis 1I
Sat Mar 16, 2019 11:10 pm
Forum: Administrative Questions and Class Announcements
Topic: Slow and Fast step
Replies: 4
Views: 77

Re: Slow and Fast step

So we need to be able to find the intermediate for the final?
by Jchellis 1I
Sat Mar 16, 2019 11:09 pm
Forum: Administrative Questions and Class Announcements
Topic: LYNDON'S PORK RAMEN REVIEW
Replies: 37
Views: 1973

Re: LYNDON'S PORK RAMEN REVIEW

Would anyone be willing to post pictures of the last few problem solutions?
by Jchellis 1I
Sat Mar 16, 2019 11:06 pm
Forum: Administrative Questions and Class Announcements
Topic: Class Curve
Replies: 11
Views: 261

Re: Class Curve

I think it says you cannot pass with under a 50% but it does not specify if you will if you have over.
by Jchellis 1I
Sun Mar 10, 2019 8:52 pm
Forum: Administrative Questions and Class Announcements
Topic: Homework
Replies: 7
Views: 82

Re: Homework

Thank you! I will check with my TA
by Jchellis 1I
Sun Mar 10, 2019 8:51 pm
Forum: Administrative Questions and Class Announcements
Topic: Final
Replies: 18
Views: 256

Final

Does anyone know the percentage of questions from each unit will be on the final?
by Jchellis 1I
Sun Mar 10, 2019 8:49 pm
Forum: Administrative Questions and Class Announcements
Topic: Morris Review
Replies: 4
Views: 99

Morris Review

Did anyone go to Morris's review session today that would be willing to post their notes? I find his sessions really helpful but I was not able to make it today.
by Jchellis 1I
Sun Mar 03, 2019 10:19 pm
Forum: Appications of the Nernst Equation (e.g., Concentration Cells, Non-Standard Cell Potentials, Calculating Equilibrium Constants and pH)
Topic: K Value
Replies: 7
Views: 64

Re: K Value

Are significant figures something we are being graded on right now? It seems like he had been pretty relaxed about them recently.
by Jchellis 1I
Sun Mar 03, 2019 10:17 pm
Forum: Balancing Redox Reactions
Topic: Short hand notation
Replies: 8
Views: 89

Re: Short hand notation

What does the single line represent then? I thought the single line was the salt bridge?
by Jchellis 1I
Sun Mar 03, 2019 10:16 pm
Forum: Balancing Redox Reactions
Topic: oxidizing agent and reducing agent
Replies: 15
Views: 133

Re: oxidizing agent and reducing agent

Sometimes it seems like in the homework that sometimes both are losing electrons? Which one is the oxidizing agent in that case?
by Jchellis 1I
Sun Mar 03, 2019 10:14 pm
Forum: Administrative Questions and Class Announcements
Topic: Homework
Replies: 7
Views: 82

Homework

Is it okay to turn in homework from topics we went over in the beginning of the quarter if we are using it as review for the final?
by Jchellis 1I
Sun Mar 03, 2019 10:12 pm
Forum: Administrative Questions and Class Announcements
Topic: Class Curve
Replies: 11
Views: 261

Re: Class Curve

I don't think it says that C- is passing in the syllabus but that has seemed to be the case at least in 14A.
by Jchellis 1I
Sun Mar 03, 2019 10:08 pm
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: Finding n
Replies: 12
Views: 146

Re: Finding n

So it is the -e- that is in your reaction.
by Jchellis 1I
Sun Mar 03, 2019 10:07 pm
Forum: Balancing Redox Reactions
Topic: Test #2
Replies: 10
Views: 155

Re: Test #2

Was this covered in class? Or were we just expected to know it?
by Jchellis 1I
Sun Mar 03, 2019 10:05 pm
Forum: Balancing Redox Reactions
Topic: Adding H+ and H2O
Replies: 13
Views: 160

Re: Adding H+ and H2O

Wait do you put the OH- on the same or opposite side of H+?
by Jchellis 1I
Sun Feb 10, 2019 10:49 pm
Forum: Administrative Questions and Class Announcements
Topic: Chem 14 BL
Replies: 5
Views: 120

Re: Chem 14 BL

I know people who have even saved their chem labs until they completed the rest of the chem series and they said it was fine.
by Jchellis 1I
Sun Feb 10, 2019 10:47 pm
Forum: Concepts & Calculations Using First Law of Thermodynamics
Topic: DeltaU=q+w
Replies: 5
Views: 54

Re: DeltaU=q+w

Yes but q is energy lost as heat it does no work.
by Jchellis 1I
Sun Feb 10, 2019 10:45 pm
Forum: Thermodynamic Systems (Open, Closed, Isolated)
Topic: Systems
Replies: 6
Views: 125

Re: Systems

More examples could be a cup (open), a jar (closed), and a cooler (insulated).
by Jchellis 1I
Sun Feb 03, 2019 10:57 pm
Forum: Administrative Questions and Class Announcements
Topic: Test 3
Replies: 10
Views: 202

Re: Test 3

We only have two tests this quarter for 14B though, right? Wasn't it changed?
by Jchellis 1I
Sun Feb 03, 2019 10:56 pm
Forum: Administrative Questions and Class Announcements
Topic: Homework
Replies: 5
Views: 301

Re: Homework

You can do the homework on anything that we have covered, whatever you feel like you need to review the most.
by Jchellis 1I
Sun Feb 03, 2019 10:54 pm
Forum: Administrative Questions and Class Announcements
Topic: Test 1 Solutions
Replies: 3
Views: 84

Re: Test 1 Solutions

I don't think Lavelle gives solutions for the tests but I'm sure you could review it with your TA during office hours.
by Jchellis 1I
Sun Feb 03, 2019 10:53 pm
Forum: Administrative Questions and Class Announcements
Topic: Midterm Review
Replies: 14
Views: 188

Re: Midterm Review

I know sometimes Lavelle dedicates a class or two to review as well as the provided sessions from the TAs.
by Jchellis 1I
Sun Jan 27, 2019 10:35 pm
Forum: Phase Changes & Related Calculations
Topic: reversible/irreversible
Replies: 8
Views: 87

Re: reversible/irreversible

Is combustion even reversible with added energy?
by Jchellis 1I
Sun Jan 27, 2019 10:34 pm
Forum: Phase Changes & Related Calculations
Topic: Phase changes
Replies: 14
Views: 126

Re: Phase changes

Yes, I believe if it gives off heat it would be negative delta H.
by Jchellis 1I
Sun Jan 27, 2019 10:32 pm
Forum: Phase Changes & Related Calculations
Topic: Steam v. Boiling Water
Replies: 4
Views: 54

Re: Steam v. Boiling Water

So both creating steam and boiling water are exothermic?
by Jchellis 1I
Mon Jan 21, 2019 9:23 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Salt
Replies: 4
Views: 57

Re: Salt

I thought that salt was usually a product?
by Jchellis 1I
Mon Jan 21, 2019 9:21 pm
Forum: Ideal Gases
Topic: ice
Replies: 4
Views: 86

Re: ice

How do we know if the acid is too strong for an ICE table?
by Jchellis 1I
Mon Jan 21, 2019 9:17 pm
Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
Topic: Pressure
Replies: 8
Views: 90

Re: Pressure

Can the Q value change if the pressure is changed?
by Jchellis 1I
Sun Jan 13, 2019 8:44 pm
Forum: Ideal Gases
Topic: ICE Table
Replies: 4
Views: 56

Re: ICE Table

Do we only use the ICE table when dealing with homogeneous reactions?
by Jchellis 1I
Sun Jan 13, 2019 8:43 pm
Forum: Non-Equilibrium Conditions & The Reaction Quotient
Topic: K vs Q [ENDORSED]
Replies: 7
Views: 117

Re: K vs Q [ENDORSED]

So can there be only one value for K but multiple values for Q as the reaction progresses?
by Jchellis 1I
Sun Jan 13, 2019 8:40 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: solids and liquids
Replies: 5
Views: 68

Re: solids and liquids

So because they are constants they have no effect on whether the reaction favors the reactants or the products?
by Jchellis 1I
Sat Dec 08, 2018 7:47 pm
Forum: General Science Questions
Topic: Audio Visuals
Replies: 6
Views: 176

Re: Audio Visuals

There are even Khan Academy videos for quantum on youtube that go beyond the basic stuff.
by Jchellis 1I
Thu Dec 06, 2018 4:08 pm
Forum: Administrative Questions and Class Announcements
Topic: Instructor Evaluations
Replies: 4
Views: 115

Re: Instructor Evaluations

Is this worth points?
by Jchellis 1I
Thu Dec 06, 2018 4:07 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Bent Structures
Replies: 12
Views: 136

Re: Bent Structures

How do we know the bond angles of bent structures?
by Jchellis 1I
Thu Dec 06, 2018 4:06 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: polarity
Replies: 11
Views: 118

Re: polarity

To check the symmetry of a Lewis Structure you can draw a line down the middle for a simple test
by Jchellis 1I
Thu Dec 06, 2018 4:04 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Drawing trigonal planar
Replies: 4
Views: 53

Re: Drawing trigonal planar

It can be helpful conceptually if you know how to draw them but they are not required on tests.
by Jchellis 1I
Thu Dec 06, 2018 4:03 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Lone electron
Replies: 1
Views: 29

Lone electron

Is it possible to have a lone electron? or would that be a free radical?
by Jchellis 1I
Thu Dec 06, 2018 4:02 pm
Forum: Administrative Questions and Class Announcements
Topic: How to find my posts
Replies: 28
Views: 16054

Re: How to find my posts

After you post you can also see the number of posts you have made next to your ID if you need to keep track.
by Jchellis 1I
Thu Dec 06, 2018 4:01 pm
Forum: Administrative Questions and Class Announcements
Topic: Practice/Final Studying
Replies: 2
Views: 101

Re: Practice/Final Studying

If you search the exact class name or add ucla to your search sometimes you can find ones made by other students in the class. Usually you can see the date when it was made too which is helpful.
by Jchellis 1I
Thu Dec 06, 2018 4:00 pm
Forum: Administrative Questions and Class Announcements
Topic: Final Exam
Replies: 22
Views: 423

Re: Final Exam

Is he going to emphasize the material after the midterm more or will it be more equal?
by Jchellis 1I
Thu Dec 06, 2018 3:58 pm
Forum: Administrative Questions and Class Announcements
Topic: Naming on the Final
Replies: 4
Views: 113

Re: Naming on the Final

Di you think naming will be emphasized much on the final as we just learned it in the last few days?
by Jchellis 1I
Thu Dec 06, 2018 3:57 pm
Forum: Administrative Questions and Class Announcements
Topic: Modules
Replies: 3
Views: 80

Re: Modules

After we finished basic high school review I found sites like Khan academy didn't have as many helpful review videos. I think your best bet would probably be to just search YouTube for other lectures.
by Jchellis 1I
Thu Dec 06, 2018 3:55 pm
Forum: Hybridization
Topic: lone pairs
Replies: 20
Views: 187

Re: lone pairs

Lone pairs count just as much as an atom for a region of electron density
by Jchellis 1I
Thu Dec 06, 2018 3:52 pm
Forum: Dipole Moments
Topic: Polarity
Replies: 7
Views: 146

Re: Polarity

If the molecule has no lone pairs then you can tell if it is polar based off of its electronegativity
by Jchellis 1I
Thu Dec 06, 2018 3:49 pm
Forum: Administrative Questions and Class Announcements
Topic: Test 3
Replies: 4
Views: 115

Re: Test 3

If we were not able to get ours back do you think the scores will be posted online in time for the final?
by Jchellis 1I
Thu Dec 06, 2018 3:48 pm
Forum: Administrative Questions and Class Announcements
Topic: About the test
Replies: 8
Views: 215

Re: About the test

He did say that there were only going to be 8 questions on the test though, so they must be multi-layered
by Jchellis 1I
Sun Nov 04, 2018 9:41 pm
Forum: Quantum Numbers and The H-Atom
Topic: degeneracy in quantum numbers
Replies: 3
Views: 76

Re: degeneracy in quantum numbers

So the s block has one degeneracy, the p block has 3, the d block has 5 and the f block has 10
by Jchellis 1I
Sun Nov 04, 2018 9:40 pm
Forum: Electronegativity
Topic: electronegativity vs electron affinity
Replies: 4
Views: 53

Re: electronegativity vs electron affinity

I don't know how correct this advice I was given is, but I was told by another Chem14A TA that we don't really need to know the concepts behind why they are different in order to do the problems we are given in the Chem14 series.
by Jchellis 1I
Sun Nov 04, 2018 9:38 pm
Forum: DeBroglie Equation
Topic: Kg vs Grams
Replies: 6
Views: 191

Re: Kg vs Grams

Kg is an SI unit so always convert to Kg
by Jchellis 1I
Sun Oct 28, 2018 9:55 pm
Forum: Quantum Numbers and The H-Atom
Topic: Test #2
Replies: 3
Views: 96

Re: Test #2

How many degeneracies can there be?
by Jchellis 1I
Sun Oct 28, 2018 9:33 pm
Forum: General Science Questions
Topic: Khan Academy
Replies: 10
Views: 290

Re: Khan Academy

I have heard that the Khan Academy AP Chem review videos and problem sets are very helpful.
by Jchellis 1I
Sun Oct 28, 2018 9:28 pm
Forum: General Science Questions
Topic: BruinCast [ENDORSED]
Replies: 4
Views: 276

Re: BruinCast [ENDORSED]

The AV modules are a great tool though if you are looking for something like a bruincast to review the material.
by Jchellis 1I
Sun Oct 28, 2018 9:27 pm
Forum: General Science Questions
Topic: Workshops
Replies: 3
Views: 153

Re: Workshops

The workshops are also often on the Hill (in Covel), so they are super convenient if you live in the dorms.
by Jchellis 1I
Sun Oct 21, 2018 9:19 pm
Forum: Properties of Electrons
Topic: ml
Replies: 5
Views: 131

Re: ml

I also have this problem with the different v's that all have different meanings. Is there any way you write yours so you don't mess up?
by Jchellis 1I
Sun Oct 21, 2018 9:16 pm
Forum: Properties of Light
Topic: Equations
Replies: 6
Views: 98

Re: Equations

Will the constants be given as well?
by Jchellis 1I
Sun Oct 21, 2018 9:14 pm
Forum: Einstein Equation
Topic: Units
Replies: 10
Views: 293

Re: Units

Its important to remember that we use kg instead of grams for SI units. I know I always forget!
by Jchellis 1I
Mon Oct 15, 2018 5:15 pm
Forum: Ideal Gases
Topic: Reading the textbook [ENDORSED]
Replies: 81
Views: 26756

Re: Reading the textbook [ENDORSED]

I am a very visual learner so watching videos online also really helps me. Also, with videos you can pause them and rewind, which you can't do in lecture, but its a little more engaging than the textbook.
by Jchellis 1I
Mon Oct 15, 2018 5:13 pm
Forum: Administrative Questions and Class Announcements
Topic: Advice from a Medical Student [ENDORSED]
Replies: 96
Views: 30419

Re: Advice from a Medical Student [ENDORSED]

Thank you! It is so great to know that these notes will be helpful later.
by Jchellis 1I
Sat Oct 06, 2018 12:30 pm
Forum: Administrative Questions and Class Announcements
Topic: Tutoring? [ENDORSED]
Replies: 39
Views: 20597

Re: Tutoring? [ENDORSED]

If you are a second year taking this class you probably already know people who took the class freshman year. It's not a bad idea to ask around to see if any of your friends are willing to help you out/tutor you because they see you all the time/can hold you accountable.
by Jchellis 1I
Sat Oct 06, 2018 12:28 pm
Forum: Administrative Questions and Class Announcements
Topic: Registering/Creating Your Chemistry Community Account
Replies: 17
Views: 15866

Re: Registering/Creating Your Chemistry Community Account

How do we know that our TA will see our posts? Should we email them our alias?
by Jchellis 1I
Sat Oct 06, 2018 12:23 pm
Forum: SI Units, Unit Conversions
Topic: Avogadro's Number [ENDORSED]
Replies: 11
Views: 368

Re: Avogadro's Number [ENDORSED]

So when asked for atoms of a molecule we can multiply by the mols by Avogadro's number to get number of atoms, but I do not understand how to get molecules from mols?

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