Search found 65 matches
- Sat Mar 16, 2019 4:02 pm
- Forum: Administrative Questions and Class Announcements
- Topic: LYNDON'S PORK RAMEN REVIEW
- Replies: 37
- Views: 7569
Re: LYNDON'S PORK RAMEN REVIEW
Thank you Lyndon!!
- Mon Mar 11, 2019 10:08 am
- Forum: Reaction Mechanisms, Reaction Profiles
- Topic: molecularity
- Replies: 8
- Views: 829
Re: molecularity
The prefix tells how many molecules are involved in the reaction!
- Mon Mar 11, 2019 10:08 am
- Forum: Administrative Questions and Class Announcements
- Topic: Final
- Replies: 18
- Views: 2044
Re: Final
Newer material will probably be covered more heavily, but we will definitely need to know everything.
- Mon Mar 11, 2019 10:06 am
- Forum: Student Social/Study Group
- Topic: Note Taking
- Replies: 145
- Views: 16458
Re: Note Taking
I really like using Google docs because it's fast and also, if there are diagrams or anything I can take pictures on my phone and then transfer it right onto my notes.
- Mon Mar 04, 2019 10:06 am
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: Does anyone know if test 2 will be curved?
- Replies: 15
- Views: 3014
Re: Does anyone know if test 2 will be curved?
Sadly, there probably won't be a curve.
- Mon Mar 04, 2019 10:06 am
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: Pt
- Replies: 14
- Views: 1357
Re: Pt
You use Pt when you have nonconducting solids! For example, if your cell diagram has two aqueous solutions, or solid that cannot conduct, you would use Pt.
- Mon Mar 04, 2019 10:04 am
- Forum: Administrative Questions and Class Announcements
- Topic: Homework
- Replies: 7
- Views: 874
Re: Homework
It would probably be better to do current chapter problems, but if your TA is fine with it, you should be okay!
- Sun Mar 03, 2019 7:12 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Test 2 Scores
- Replies: 6
- Views: 605
Re: Test 2 Scores
We will probably get them during week 9 discussion.
- Sun Mar 03, 2019 7:11 pm
- Forum: Student Social/Study Group
- Topic: Final
- Replies: 24
- Views: 2207
Re: Final
I think checking his website is the best way to see when review sessions will start!
- Mon Feb 25, 2019 10:04 am
- Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
- Topic: Test 3
- Replies: 14
- Views: 2342
Re: Test 3
Yes, I think we will need to be able to apply Gibbs Free Energy.
- Mon Feb 25, 2019 10:03 am
- Forum: Balancing Redox Reactions
- Topic: Test #2
- Replies: 9
- Views: 930
Re: Test #2
It will be from Gibbs Free Energy to what we lectured about last Friday!
- Mon Feb 25, 2019 10:01 am
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: Tips for Discussion Test
- Replies: 6
- Views: 582
Re: Tips for Discussion Test
The outlines and practice problems are a really great place to start!
- Mon Feb 18, 2019 11:35 am
- Forum: Student Social/Study Group
- Topic: Test
- Replies: 17
- Views: 1584
Re: Test
Straight from Lavelle's website! "Test 2 covers all topics on Gibbs free energy and electrochemistry up to but not including the Nernst equation (which is all the new material covered in class Weeks 6 and 7). Test 2 starts Tuesday of Week 8."
- Mon Feb 18, 2019 11:34 am
- Forum: Calculating Standard Reaction Entropies (e.g. , Using Standard Molar Entropies)
- Topic: Midterm Grades
- Replies: 35
- Views: 2772
Re: Midterm Grades
Midterm grades are most likely available during our next discussion!
- Mon Feb 18, 2019 11:33 am
- Forum: Gibbs Free Energy Concepts and Calculations
- Topic: Gibbs Free Energy vs. Standard Gibbs Free Energy
- Replies: 3
- Views: 401
Re: Gibbs Free Energy vs. Standard Gibbs Free Energy
Standard Gibbs Free Energy is at specific conditions, whereas just gibbs free energy can be at any given conditions!
- Mon Feb 11, 2019 10:09 am
- Forum: Entropy Changes Due to Changes in Volume and Temperature
- Topic: Converting Celsius to Kelvin
- Replies: 7
- Views: 705
Re: Converting Celsius to Kelvin
273 K should be fine to get your answer!
- Mon Feb 11, 2019 10:09 am
- Forum: Calculating Work of Expansion
- Topic: Reversible vs Irreversible
- Replies: 10
- Views: 1002
Re: Reversible vs Irreversible
The starting conditions should help you determine whether the reaction is reversible or irreversible.
- Mon Feb 11, 2019 10:08 am
- Forum: Concepts & Calculations Using Second Law of Thermodynamics
- Topic: General entropy question
- Replies: 9
- Views: 848
Re: General entropy question
Gases will have the highest entropy because they have more possible positions, compared to solids and gases.
- Mon Feb 04, 2019 10:02 am
- Forum: Calculating Work of Expansion
- Topic: Integral calculations
- Replies: 4
- Views: 522
Re: Integral calculations
I do not think we will be required to know how to take an integral. Lavelle was just showing us where the equation was derived from!
- Mon Feb 04, 2019 10:01 am
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: Isolated System (Water bottle)
- Replies: 6
- Views: 1855
Re: Isolated System (Water bottle)
This is because the water is insulated, so energy cannot move in and out of the system!
- Mon Feb 04, 2019 10:00 am
- Forum: Concepts & Calculations Using First Law of Thermodynamics
- Topic: Work
- Replies: 6
- Views: 661
Re: Work
If work is positive, then it is adds energy into the system. If it is negative, energy is released!
- Mon Jan 28, 2019 10:12 am
- Forum: Phase Changes & Related Calculations
- Topic: Due date for Discussion Questions
- Replies: 8
- Views: 880
Re: Due date for Discussion Questions
Homework is due during discussion every week!
- Mon Jan 28, 2019 10:12 am
- Forum: Ideal Gases
- Topic: pH and pOH
- Replies: 18
- Views: 1956
Re: pH and pOH
The probable will typically tell you whether to solve for pH or pOH.
- Mon Jan 28, 2019 10:11 am
- Forum: Non-Equilibrium Conditions & The Reaction Quotient
- Topic: Units of Kp
- Replies: 9
- Views: 3677
Re: Units of Kp
The units for Kp are typically bar or atm.
- Mon Jan 21, 2019 9:48 am
- Forum: Ideal Gases
- Topic: Chemistry Community Posting
- Replies: 7
- Views: 628
Re: Chemistry Community Posting
Three posts should be done before midnight on Sunday!
- Mon Jan 21, 2019 9:47 am
- Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
- Topic: The Conjugate Seesaw
- Replies: 13
- Views: 997
Re: The Conjugate Seesaw
Kw is always constant, and Ka*Kb=Kw, so if Ka increases, Kb decreases, and vice versa.
- Mon Jan 21, 2019 9:45 am
- Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
- Topic: pressure and volume
- Replies: 5
- Views: 510
Re: pressure and volume
Pressure and volume are inversely related! For example, if pressure decreases, volume goes up, and vice versa.
- Mon Jan 14, 2019 1:51 pm
- Forum: Ideal Gases
- Topic: Homework Week 2
- Replies: 10
- Views: 1031
Re: Homework Week 2
Homework will be due during your discussion starting this week!
- Mon Jan 14, 2019 1:50 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Temperature
- Replies: 6
- Views: 527
Re: Temperature
Temperature must stay the same because it can change the equilibrium constant!
- Mon Jan 14, 2019 1:50 pm
- Forum: Ideal Gases
- Topic: Denoting brackets/parentheses
- Replies: 9
- Views: 2182
Re: Denoting brackets/parentheses
Brackets are typically used to denote concentration!
- Wed Jan 09, 2019 9:22 am
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Discussion Points
- Replies: 3
- Views: 242
Re: Discussion Points
Yeah, there is no direct way to check if you are getting points, but as long as you post three times a week, you should be fine!
- Wed Jan 09, 2019 9:21 am
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Leaning to the left/right
- Replies: 4
- Views: 786
Re: Leaning to the left/right
The leaning refers to which direction the reaction is favored.
- Wed Jan 09, 2019 9:20 am
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Number of significant figures for calculating value of K
- Replies: 1
- Views: 87
Re: Number of significant figures for calculating value of K
I believe that we follow the rules from 14A!
- Sat Dec 08, 2018 6:57 pm
- Forum: Administrative Questions and Class Announcements
- Topic: FINAL PRACTICE - Lyndon's Churro Review Session [ENDORSED]
- Replies: 118
- Views: 21315
Re: FINAL PRACTICE - Lyndon's Churro Review Session [ENDORSED]
Thank you SO MUCH!!
- Mon Dec 03, 2018 11:14 am
- Forum: Administrative Questions and Class Announcements
- Topic: Final Grades
- Replies: 10
- Views: 1077
Re: Final Grades
I do not believe final grades are curved for this class.
- Mon Dec 03, 2018 11:13 am
- Forum: Determining Molecular Shape (VSEPR)
- Topic: AX3E
- Replies: 18
- Views: 3287
Re: AX3E
A molecule with AX3E would be trigonal pyramidal!
- Mon Dec 03, 2018 11:12 am
- Forum: Naming
- Topic: Naming the Shape
- Replies: 6
- Views: 625
Re: Naming the Shape
I think the only way to really determine the shape is to draw it, so that you can visualize where the bonds and lone pair electrons are!
- Wed Nov 28, 2018 11:57 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Polarity of CH2Cl2
- Replies: 2
- Views: 611
Re: Polarity of CH2Cl2
This is because CH2Cl2 is tetrahedral, so it doesn't actually cancel out perfectly like it appears to with its Lewis structure.
- Mon Nov 26, 2018 5:05 pm
- Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
- Topic: test #3
- Replies: 14
- Views: 1532
Re: test #3
ariellasarkissian_3H wrote:Also, are we responsible for memorizing the bond angles for each shape?
I think for the test, it would probably be useful to know the bond angles.
- Mon Nov 26, 2018 5:04 pm
- Forum: Hybridization
- Topic: Just Kind of Confused
- Replies: 13
- Views: 1035
Re: Just Kind of Confused
Either way is fine in this case!
- Mon Nov 26, 2018 5:02 pm
- Forum: Dipole Moments
- Topic: TEST 3: Polarity
- Replies: 7
- Views: 636
Re: TEST 3: Polarity
I would follow Lavelle's example and have them point towards the negative!
- Tue Nov 20, 2018 10:54 am
- Forum: Administrative Questions and Class Announcements
- Topic: Thanksgiving week
- Replies: 10
- Views: 1377
Re: Thanksgiving week
There is no class on Wednesday!!
- Tue Nov 20, 2018 10:54 am
- Forum: Administrative Questions and Class Announcements
- Topic: Discussion
- Replies: 3
- Views: 501
Re: Discussion
I agree, I think discussions are still in session for Tue/Wed unless cancelled by the TA.
- Tue Nov 20, 2018 10:52 am
- Forum: Administrative Questions and Class Announcements
- Topic: Test 3 dates?
- Replies: 11
- Views: 1307
Re: Test 3 dates?
Test 3 will be on the week after thanksgiving break!
- Mon Nov 12, 2018 2:19 pm
- Forum: General Science Questions
- Topic: Chemistry Community Posts
- Replies: 8
- Views: 1151
Re: Chemistry Community Posts
I'm not sure that posts roll over, but double checking with your TA is probably a great idea!
- Mon Nov 12, 2018 2:17 pm
- Forum: Properties of Light
- Topic: Test 3
- Replies: 24
- Views: 2196
Re: Test 3
Test 3 will probably only have information that we learn after the midterm!
- Mon Nov 12, 2018 2:15 pm
- Forum: Interionic and Intermolecular Forces (Ion-Ion, Ion-Dipole, Dipole-Dipole, Dipole-Induced Dipole, Dispersion/Induced Dipole-Induced Dipole/London Forces, Hydrogen Bonding)
- Topic: Hydrogen Bonds
- Replies: 14
- Views: 1046
Re: Hydrogen Bonds
Yes they are! And hydrogen can be bonded to F, O, and N.
- Mon Nov 05, 2018 11:03 am
- Forum: Octet Exceptions
- Topic: Radicals
- Replies: 16
- Views: 1741
Re: Radicals
Placing the radical on the atom that will have a formal charge as close to 0 as possible!
- Mon Nov 05, 2018 11:02 am
- Forum: Sigma & Pi Bonds
- Topic: Midterm1
- Replies: 10
- Views: 1157
Re: Midterm1
I don't think knowledge about sigma and pi bonds will be necessary!
- Mon Nov 05, 2018 10:59 am
- Forum: Administrative Questions and Class Announcements
- Topic: MIDTERM PRACTICE - Garlic Bread Review Session [ENDORSED]
- Replies: 121
- Views: 18626
Re: MIDTERM PRACTICE - Garlic Bread Review Session [ENDORSED]
Thank you so much for the extra practice!!
- Mon Oct 29, 2018 11:28 am
- Forum: Octet Exceptions
- Topic: do we nee to memorize the octet exceptions?
- Replies: 6
- Views: 1017
Re: do we nee to memorize the octet exceptions?
I'm pretty sure as long as you know the exceptions he mentioned in class, you should be fine.
- Mon Oct 29, 2018 11:27 am
- Forum: Significant Figures
- Topic: Sig Figs in the Middle of a Problem
- Replies: 9
- Views: 2500
Re: Sig Figs in the Middle of a Problem
It's better to not use sig figs until the very end of the problem! That will improve the accuracy of your answer.
- Mon Oct 29, 2018 11:26 am
- Forum: Ionic & Covalent Bonds
- Topic: Midterm
- Replies: 2
- Views: 343
Re: Midterm
Francis_Nguyen3D wrote:Hello,
this was posted on the Chem 14A website under announcements : Midterm covers: Fundamentals, Quantum, Bonding to end of 3.11 (6 Ed.) and to end of 2C (7 Ed.)
Ah thank you!!
- Mon Oct 22, 2018 12:10 pm
- Forum: *Particle in a Box
- Topic: Test 2
- Replies: 9
- Views: 1372
Re: Test 2
Test 2 will cover everything up to and including Friday's lecture!
- Mon Oct 22, 2018 12:08 pm
- Forum: Properties of Light
- Topic: TEST 2
- Replies: 7
- Views: 833
Re: TEST 2
Electron mass and other constants should be given to us on the test!
- Mon Oct 22, 2018 12:08 pm
- Forum: Properties of Electrons
- Topic: Test on Wednesday
- Replies: 3
- Views: 396
Re: Test on Wednesday
It won't have anything from Monday's lecture!
- Mon Oct 15, 2018 10:57 pm
- Forum: Student Social/Study Group
- Topic: Note Taking
- Replies: 145
- Views: 16458
Re: Note Taking
I like taking notes on my computer because it's faster for me to copy down some of the things said during lecture and put in diagrams I find online from his presentations!
- Mon Oct 15, 2018 10:53 pm
- Forum: Wave Functions and s-, p-, d-, f- Orbitals
- Topic: Negative v. Positive when calculating energy
- Replies: 8
- Views: 2520
Re: Negative v. Positive when calculating energy
When delta E turns out to be negative, it means that the reaction released energy.
- Mon Oct 15, 2018 10:46 pm
- Forum: DeBroglie Equation
- Topic: Equivalent Equations
- Replies: 2
- Views: 354
Re: Equivalent Equations
The information given in the problem should determine which equation you should use!
- Mon Oct 08, 2018 5:21 pm
- Forum: Properties of Light
- Topic: Chapter 1 Homework
- Replies: 6
- Views: 606
Re: Chapter 1 Homework
For this week, I believe we can submit homework from either the fundamentals section or chapter one.
- Mon Oct 08, 2018 5:20 pm
- Forum: Administrative Questions and Class Announcements
- Topic: How do the post hw points work
- Replies: 5
- Views: 570
Re: How do the post hw points work
I believe as long as you post before the end of the week, you should be fine!
- Mon Oct 08, 2018 5:19 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3591048
Re: Post All Chemistry Jokes Here
Making bad chemistry jokes because all the good ones Argon.
- Tue Oct 02, 2018 7:23 pm
- Forum: Accuracy, Precision, Mole, Other Definitions
- Topic: rounding [ENDORSED]
- Replies: 10
- Views: 984
Re: rounding [ENDORSED]
Veronica Soliman 4B wrote:Also, would someone let me know how to post a question? I couldn't figure out how and I've tried reading the FAQs
If you click on one of the forum topics, there should be a button under the title that says "New Topic" where you can create a new post!
- Tue Oct 02, 2018 7:16 pm
- Forum: Empirical & Molecular Formulas
- Topic: Knowing Chemical Compounds
- Replies: 4
- Views: 508
Re: Knowing Chemical Compounds
I don't think we will need to know all the nomenclature yet!
- Tue Oct 02, 2018 7:03 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Advice from a Medical Student [ENDORSED]
- Replies: 297
- Views: 408768
Re: Advice from a Medical Student [ENDORSED]
Ah thank you so much! This makes me feel much more at ease!