Search found 118 matches
- Tue Mar 09, 2021 3:50 pm
- Forum: Student Social/Study Group
- Topic: Final Jitters
- Replies: 457
- Views: 333727
Re: Final Jitters
just remember how far along we are. This is the final stretch. It can be very stressful but just know that you are doing your best!!!
- Tue Mar 09, 2021 2:44 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Final on 3/13
- Replies: 18
- Views: 834
Re: Final on 3/13
do not forget about day light savings!
- Tue Mar 09, 2021 2:42 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: textbook 6M.5
- Replies: 2
- Views: 223
Re: textbook 6M.5
Hi! For this question, I looked at the appendix to find the half rxns and the half rxns I got were NO3- + 4H+ + 3e- -> NO + 6H2O (E naught = 0.96) and Hg2 2+ + 2e- --> 2Hg (l) (E naught = 0.79). From these half rxns, I saw that to get the desired reaction for part a, we would have to reverse the se...
- Tue Mar 09, 2021 2:38 pm
- Forum: Reaction Mechanisms, Reaction Profiles
- Topic: intermediates
- Replies: 11
- Views: 458
Re: intermediates
like every one else said, intermediates are introduced in one step and then consumed in another. I am not sure if this will be a main topic on the final though
- Tue Mar 09, 2021 2:36 pm
- Forum: Student Social/Study Group
- Topic: What do you miss / What are you looking forward to?
- Replies: 92
- Views: 8083
Re: What do you miss / What are you looking forward to?
I miss hugging my friends and family pre-covid
- Tue Mar 09, 2021 2:35 pm
- Forum: General Science Questions
- Topic: How to study for final 14B
- Replies: 13
- Views: 923
Re: How to study for final 14B
I will be reviewing the book problems that I have the most trouble with and watching YouTube videos on concepts I do not understand. Also I am attending as many review sessions as possible
- Thu Mar 04, 2021 10:39 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: cell notation
- Replies: 12
- Views: 683
Re: cell notation
A key thing to just remember is that anode is losing electrons and going to cathode which gains electrons. I have seen once the cathode being on the left and the anode on the right, but still the electrons are going from anode to cathode, so as long as you know which is which you'll be fine!
- Thu Mar 04, 2021 10:35 pm
- Forum: Phase Changes & Related Calculations
- Topic: Vapor vs gas
- Replies: 121
- Views: 8894
Re: Vapor vs gas
they are the same for this class
- Thu Mar 04, 2021 10:34 pm
- Forum: Balancing Redox Reactions
- Topic: Oxidation and Reduction
- Replies: 11
- Views: 736
Re: Oxidation and Reduction
I do not think it can happen simultaneously. are you talking about oxidizing and reducing agents?
- Thu Mar 04, 2021 10:32 pm
- Forum: Zero Order Reactions
- Topic: What do each orders mean
- Replies: 7
- Views: 545
Re: What do each orders mean
Zero order - rate doesn't depend on concentration First order - depends on one concentration Second order - depends on two concentrations or the square of one In elaboration of this, basically the order of the reaction marks the relationship of the concentration of the reactants with the rate of re...
- Thu Mar 04, 2021 10:31 pm
- Forum: Kinetics vs. Thermodynamics Controlling a Reaction
- Topic: What was your favorite chem topic?
- Replies: 137
- Views: 8520
Re: What was your favorite chem topic?
i actually kinda enjoy electrochem and balancing acidic and basic equations
- Sun Feb 28, 2021 11:51 pm
- Forum: Balancing Redox Reactions
- Topic: Balancing Acidic Versus Basic Solutions
- Replies: 20
- Views: 857
Re: Balancing Acidic Versus Basic Solutions
When I learned how to balance Redox reactions, I learned to start by balancing both reactions in the same way: (1) balance non H or O elements (2) add H2O to balance O (3) add H+ to the opposite side to balance H (4) Balancing overall charge For an acidic reaction, you can leave it in this state, a...
- Tue Feb 23, 2021 11:30 am
- Forum: Student Social/Study Group
- Topic: Fave food
- Replies: 266
- Views: 28398
Re: Fave food
My favorite snack to snack on is peanut butter jelly sandwich with banana inside. Then I pair this with an iced coffee. Even if it is cold outside iced coffee>> hot coffee
- Tue Feb 23, 2021 11:29 am
- Forum: Student Social/Study Group
- Topic: How to Reduce Nervousness before getting results
- Replies: 63
- Views: 4716
Re: How to Reduce Nervousness before getting results
Although I sometimes hate when people say there’s nothing much you can do now, it’s true! And if you are feeling nervous just now u tried your best and there’s still another opportunity to redeem yourself
- Tue Feb 23, 2021 11:27 am
- Forum: Student Social/Study Group
- Topic: Chem 14B Final
- Replies: 86
- Views: 5080
Re: Chem 14B Final
Make sure u understand textbook problems as well as go to step up review sessions! I would say try going to at least one a day!
- Tue Feb 23, 2021 11:26 am
- Forum: Gibbs Free Energy Concepts and Calculations
- Topic: Delta G and G naught
- Replies: 46
- Views: 4356
Re: Delta G and G naught
As others have stated deltaGo is the deltaGunder standard conditions. However, I think what's most important to remember about the relationship between deltaGo and deltaG is that they can be used to find each other given Q as deltaG = deltaGo + RTln(Q). So if deltaG = 0, does that mean that deltaGo...
- Tue Feb 23, 2021 11:24 am
- Forum: Administrative Questions and Class Announcements
- Topic: Can We Review our Exams?
- Replies: 69
- Views: 2930
Re: Can We Review our Exams?
I’m pretty sure you can review your exams with any TA during office hours!
- Wed Feb 17, 2021 12:39 am
- Forum: Student Social/Study Group
- Topic: Studying for Midterm 2
- Replies: 45
- Views: 1740
Re: Studying for Midterm 2
I have been trying to actually fully understand the textbook problems and connect all the equations. There are a lot of equations so I am also trying to remember and and understand when to use each one
- Wed Feb 17, 2021 12:37 am
- Forum: Gibbs Free Energy Concepts and Calculations
- Topic: Meaning of K
- Replies: 55
- Views: 3673
Re: Meaning of K
Yes! I was getting a little confused on this too! But K is equilibrium constant. Also look at for Q too!
- Wed Feb 17, 2021 12:34 am
- Forum: Student Social/Study Group
- Topic: Winter GEs?
- Replies: 33
- Views: 2471
Re: Winter GEs?
Some interesting GEs I’ve taken are Chicanx Studies 10A and B, EDM 8 which is a musicology class about the history of EDM. I am not a big fan of EDM but this class was very interesting.
- Wed Feb 17, 2021 12:27 am
- Forum: Entropy Changes Due to Changes in Volume and Temperature
- Topic: Units for Temperature
- Replies: 5
- Views: 310
Re: Units for Temperature
Yes! Always make sure to convert temp to Kelvin, unless you are doing deltaT. The reason we do not need to convert for deltaT is because a change in Celsius is the same as a change in Kelvin. However, this is only the case for temp... I think. I’m pretty sure it doesn’t work for deltaV
- Wed Feb 17, 2021 12:23 am
- Forum: Concepts & Calculations Using First Law of Thermodynamics
- Topic: confusion on using Cp and Cv
- Replies: 24
- Views: 1018
Re: confusion on using Cp and Cv
We use Cp when pressure is constant and Cv when volume is constant. Remember the difference between diatomic and monatomic
- Tue Feb 09, 2021 4:49 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Midterm 2
- Replies: 6
- Views: 358
Re: Midterm 2
not sure. but Lavelle will update us later. I think it material for Midterm 2 will end after 3rd law of thermodynamics, but idk
- Tue Feb 09, 2021 4:47 pm
- Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
- Topic: q equation
- Replies: 21
- Views: 3475
Re: q equation
It depends what you are given. n is for moles while as m is for grams.
- Tue Feb 09, 2021 4:44 pm
- Forum: Ideal Gases
- Topic: Chem BL
- Replies: 107
- Views: 7116
Re: Chem BL
I think I will take it next quarter with 14C. I dont know if it gets filled quick.
- Tue Feb 09, 2021 4:43 pm
- Forum: Student Social/Study Group
- Topic: Preparing for Midterm 2
- Replies: 14
- Views: 649
Re: Preparing for Midterm 2
how I will be preparing is reading the textbook and understanding the textbook problems. I am still very nervous for MT2 especially because the questions are worth so much. I also dont know if there will be partial credit for this midterm, like in 14A.
- Tue Feb 09, 2021 4:39 pm
- Forum: Student Social/Study Group
- Topic: Finals
- Replies: 46
- Views: 2975
Re: Finals
I agree with Alex, last quarter I found the final a little more difficult just because it was cumulative and had to review everything from earlier weeks. And like Alex said, there are alot of review sessions that UAs hold and they are very helpful. I would say trying going to at least one a day
- Tue Feb 02, 2021 10:15 pm
- Forum: Student Social/Study Group
- Topic: 14C and CL
- Replies: 8
- Views: 731
Re: 14C and CL
I am planning on taking 14C and BL together.
- Tue Feb 02, 2021 10:14 pm
- Forum: Student Social/Study Group
- Topic: Test curve?
- Replies: 40
- Views: 2804
Re: Test curve?
I think it's the same as 14a, no curve. He only gave a 10 point gift because many people found the final very difficult. But I am not sure if he'll do that
- Tue Feb 02, 2021 10:12 pm
- Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
- Topic: Explaining Le Chatelier's Principle
- Replies: 14
- Views: 1004
Re: Explaining Le Chatelier's Principle
jessicaosuna_1F wrote:This diagram is helpful for thinking about Le Chatelier's Principle!
ooooo very helpful diagram! thank you!!
- Tue Feb 02, 2021 10:11 pm
- Forum: Student Social/Study Group
- Topic: Worried About MT 1 Grades
- Replies: 39
- Views: 1626
Re: Worried About MT 1 Grades
I felt the same too! I felt like I was completing acid and bases questions easily before the midterm but after the midterm I felt really down. And what makes it worse is I don't think there is a curve like 14a.
- Tue Feb 02, 2021 10:08 pm
- Forum: Student Social/Study Group
- Topic: Best study methods
- Replies: 3
- Views: 213
Re: Best study methods
For me I like to work on the textbook questions and go to UA sessions. I also like to go back to the lecture if I did not understand a concept as much or even watch youtube videos
- Wed Jan 27, 2021 12:22 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: determining strong acid
- Replies: 3
- Views: 136
Re: determining strong acid
I am pretty sure, unless specifically told otherwise, we are to maintain that the only strong acids are whatever was on the Chempendix that specifically labels the strong acids (HCl, HBr, HI, H2SO4, HNO3, HClO4, and HClO3, where even HCLO3 can sometimes be considered a weak acid). Also, the table i...
- Wed Jan 27, 2021 12:19 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Partial Credit on MT 1
- Replies: 15
- Views: 722
Re: Partial Credit on MT 1
I think certain choices for questions will be partial credit, so depending which one you choose you will get partial credit if the choice is on the right track, full credit if it is correct, or no credit if it is for sure not correct.
- Wed Jan 27, 2021 12:16 pm
- Forum: Student Social/Study Group
- Topic: Favorite Music
- Replies: 113
- Views: 9774
Re: Favorite Music
sza's new music has been on replay for me, even her unreleased on soundcloud, I'm worried I'm going to get tired of her lol.
- Wed Jan 27, 2021 12:14 pm
- Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
- Topic: Using the ICE table
- Replies: 36
- Views: 1314
Re: Using the ICE table
partial pressures can be solved using ICE tables! they are also applicable to concentration
- Tue Jan 26, 2021 11:40 pm
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: Correct units for Standard Reaction Enthalpy
- Replies: 7
- Views: 230
Re: Correct units for Standard Reaction Enthalpy
i was also confused on the units but it is kJ/mol
- Tue Jan 19, 2021 10:22 pm
- Forum: Student Social/Study Group
- Topic: Motivation
- Replies: 39
- Views: 1729
Re: Motivation
I have also been having trouble staying motivated. But I do think what has helped me is I stop studying at a certain time and having a restful sleep. I look forward to this everyday so that is my motivation. I think what can help is rewarding yourself so that you have something to look forward to ev...
- Tue Jan 19, 2021 10:19 pm
- Forum: Non-Equilibrium Conditions & The Reaction Quotient
- Topic: Ka vs. Kb
- Replies: 30
- Views: 4898
Re: Ka vs. Kb
Ka is related to acids so a reaction HA + H_{2}O \Leftrightarrow H_{3}O^{+} + A^{-} will be written in terms of Ka being [H3O+][A-]/[HA]. Similarly for the Conjugate base A-, the reaction A^{-} + H_{2}O \Leftrightarrow OH^{-} + HA will be written in terms of Kb being [OH-][HA]/[A-]. Same is true fo...
- Tue Jan 19, 2021 10:18 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Midterm Exams
- Replies: 7
- Views: 313
Re: Midterm Exams
I think it will be like last quarter where TAs will give out zoom codes. I think the only thing different is it will not be during section, instead it will be during class time
- Tue Jan 19, 2021 10:17 pm
- Forum: General Science Questions
- Topic: Textbook Problem: A little off with algebra
- Replies: 2
- Views: 149
Re: Textbook Problem: A little off with algebra
yes to add on, you basically want to isolate PCL3 so first multiply both sides by 1.18, then divide by 5.43. after this PCL3 will be isolated.
- Tue Jan 19, 2021 10:15 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: pKa and Ka
- Replies: 27
- Views: 818
Re: pKa and Ka
RyanKopeikin_2I wrote:pKa is the NEGATIVE log of Ka : -log(Ka) = pKa . To convert from pKa to Ka, you would do: Ka = 10^-pKa. Just a little trick in general, the presence of that "p" (as in pH, pOH, pKa, etc) means taking the -log.
thank you so much! very helpful
- Wed Jan 13, 2021 10:18 pm
- Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
- Topic: Increase in Pressure
- Replies: 31
- Views: 698
Re: Increase in Pressure
Pressure is a measurement to describe gases, therefore only consider moles of gases
- Wed Jan 13, 2021 10:15 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Lecture Question
- Replies: 9
- Views: 481
Re: Lecture Question
I was also confused on this, but it is a weak acid
- Wed Jan 13, 2021 10:13 pm
- Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
- Topic: Getting two positive x values when using quadratic
- Replies: 43
- Views: 4585
Re: Getting two positive x values when using quadratic
if you get two positive x values from the quadratic formula, plug it into your ICE table, if the value outputted then is negative, do not use that x value
- Wed Jan 13, 2021 10:12 pm
- Forum: Student Social/Study Group
- Topic: Study Habits
- Replies: 96
- Views: 5400
Re: Study Habits
my advice is attend as many UA sessions as you can and practice the book problems. I think the best thing is making sure you know how to approach and solve book questions
- Wed Jan 13, 2021 10:09 pm
- Forum: Administrative Questions and Class Announcements
- Topic: What units will be in Midterm 1?
- Replies: 6
- Views: 249
Re: What units will be in Midterm 1?
I think it will be unit 1,2,and 3. He will announce it as midterm approaches
- Fri Jan 08, 2021 2:58 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Question for Friday lecture 1/8
- Replies: 7
- Views: 372
Re: Question for Friday lecture 1/8
0.5 is in liters. this came from converting 500 ml to L in order to get molarity which is moles/Liter
- Fri Jan 08, 2021 2:56 pm
- Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
- Topic: Calculator Trick for ICEbox Calculations
- Replies: 13
- Views: 719
Re: Calculator Trick for ICEbox Calculations
wow!! thank you so much, very useful
- Fri Jan 08, 2021 2:55 pm
- Forum: Student Social/Study Group
- Topic: Final Exam Study Tips
- Replies: 48
- Views: 2338
Re: Final Exam Study Tips
I went to as many UA sessions and did all the textbook problems when studying for the final
- Fri Jan 08, 2021 2:54 pm
- Forum: Student Social/Study Group
- Topic: How to relax
- Replies: 168
- Views: 21085
Re: How to relax
What I have been doing to relax and make sure I am on track is writing everything I have to do so that I do not feel behind. For relaxing, I like to take little naps when I can
- Tue Jan 05, 2021 9:50 pm
- Forum: Ideal Gases
- Topic: Units of Temperature
- Replies: 82
- Views: 3342
Re: Units of Temperature
I'm pretty sure we will be using Kelvin. So it will be important to know how to convert to Kelvin if not given Kelvin
- Tue Jan 05, 2021 9:48 pm
- Forum: Student Social/Study Group
- Topic: Learning Sessions
- Replies: 24
- Views: 1055
Re: Learning Sessions
las quarter I only went to 1 a week and I regret it. I think 2-3 would be a good amount per week. They are very helpful, if you understand the material well, then you probably do not need to attend as many.
- Tue Jan 05, 2021 12:24 pm
- Forum: Student Social/Study Group
- Topic: Advice for someone who didn't take 14A with professor Lavelle
- Replies: 61
- Views: 2674
Re: Advice for someone who didn't take 14A with professor Lavelle
UA sessions are very helpful so I recommend going to those weekly, and as many as possible a week since the worksheets are not the same. I would also recommend watching video on the topics and reviewing old notes. Professor Lavelle also did mention that only ~20% is 14A material.
- Wed Dec 16, 2020 3:09 pm
- Forum: Student Social/Study Group
- Topic: Winter Break
- Replies: 44
- Views: 2026
Re: Winter Break
LeahSWM wrote:I will simply just be forgetting. lol. will not catch me doing any studying until January 5th.
... same, my brain needs it
- Wed Dec 16, 2020 3:07 pm
- Forum: Student Social/Study Group
- Topic: Changing Study Habits
- Replies: 35
- Views: 1279
Re: Changing Study Habits
I plan to attend more UA session, I really thought that all UA sessions would be the same and have the same worksheet which is why I only attended one a week. So next quarter I hope to attend as much as I can each week. I also plan on using my weekends more efficiently.
- Wed Dec 16, 2020 3:04 pm
- Forum: Student Social/Study Group
- Topic: Plans for Relaxing After Finals
- Replies: 98
- Views: 11374
Re: Plans for Relaxing After Finals
I will definitively be sleeping in during break. I really want to do crafts or activities to make Christmas feel more Christmas-y this year. I hope you all have a relaxing break, we all deserve it!
- Wed Dec 16, 2020 3:01 pm
- Forum: Student Social/Study Group
- Topic: Anxiety
- Replies: 109
- Views: 6857
Re: Anxiety
cleaning up my space makes me feel less anxious. I normally end up cleaning the whole house without even noticing haha
- Wed Dec 16, 2020 2:59 pm
- Forum: Student Social/Study Group
- Topic: Grades
- Replies: 29
- Views: 1185
Re: Grades
yes I am pretty sure in his email that he will have grades by saturday for his 6 classes.
- Wed Dec 09, 2020 9:41 pm
- Forum: Student Social/Study Group
- Topic: Review Session
- Replies: 11
- Views: 604
Re: Review Session
So Friday's is recorded or is it live?
- Wed Dec 09, 2020 9:37 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Final Exam Proctoring Clarification
- Replies: 15
- Views: 696
Re: Final Exam Proctoring Clarification
thank you for clarifying. I do not think my TA has brought up there being 2 proctors instead of 1.
- Wed Dec 09, 2020 9:34 pm
- Forum: Identifying Acidic & Basic Salts
- Topic: Acidic, basic, or neutral?
- Replies: 10
- Views: 1570
Re: Acidic, basic, or neutral?
Thank you!!! this was very helpful, I was confused on this topic.
- Wed Dec 09, 2020 9:33 pm
- Forum: Ionic & Covalent Bonds
- Topic: CO2 vs CS2
- Replies: 8
- Views: 1409
Re: CO2 vs CS2
By comparing the electronegativity, you can determine which bond is more ionic. As Lea said. Also distance has an effect on ionic character
- Wed Dec 09, 2020 9:29 pm
- Forum: Polyprotic Acids & Bases
- Topic: Proton vs H+
- Replies: 14
- Views: 723
Re: Proton vs H+
Yes H+ and proton are interchangeable!
- Wed Dec 09, 2020 9:28 pm
- Forum: Polyprotic Acids & Bases
- Topic: CO2 + H2O
- Replies: 7
- Views: 941
Re: CO2 + H2O
here's a link to strong acids and bases if you need for reference https://sites.google.com/site/chempendi ... cids-bases I think it would be helpful to memorize these
- Wed Dec 09, 2020 9:24 pm
- Forum: Student Social/Study Group
- Topic: lecture bruincast #29 problem
- Replies: 10
- Views: 469
Re: lecture bruincast #29 problem
yess! I have been having similar issues. This barely started for me this week though so I don't know what is going on
- Wed Dec 09, 2020 9:23 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Do we need to memorize all 15 shapes
- Replies: 5
- Views: 354
Re: Do we need to memorize all 15 shapes
yea I think we need to know all shapes
- Sat Dec 05, 2020 6:54 pm
- Forum: Naming
- Topic: Helpful Videos for Naming
- Replies: 22
- Views: 1030
Re: Helpful Videos for Naming
Thank you!! I was looking for videos to watch about naming.
- Sat Dec 05, 2020 6:51 pm
- Forum: Naming
- Topic: Naming Order
- Replies: 16
- Views: 616
Re: Naming Order
Hey! I agree with what was said so far about them being in alphabetical order. I found this really good site that has all the rules, so you should definitely check it out when you get the chance. Here's the link: http://www.chemistry.wustl.edu/~edudev/LabTutorials/naming_coord_comp.html Thank you!!...
- Sat Dec 05, 2020 6:50 pm
- Forum: Lewis Structures
- Topic: Most Stable Structure
- Replies: 23
- Views: 3453
Re: Most Stable Structure
The Lewis structure with no charge or Lewis structure with the least amount of atoms with a charge is the most stable.
- Sat Dec 05, 2020 6:46 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Final
- Replies: 21
- Views: 765
Re: Final
I'm pretty sure it will be the same discussion link, or TAs will send a new one.
- Sat Dec 05, 2020 6:45 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Chem 14A Final
- Replies: 21
- Views: 1081
Re: Chem 14A Final
Yea I do not think that Dr. Lavelle mentioned anything about partial or extra credit.
- Sat Dec 05, 2020 6:43 pm
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: ligand names
- Replies: 10
- Views: 511
Re: ligand names
I would refer to the specific document of ligand names from Lavelle's class website. Since he made it himself, I don't think he would test ligands that do not appear on the list. It also has some examples for further clarification and practice. However, you are not able to use it on exams. https://...
- Sat Dec 05, 2020 6:42 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Extra Credit
- Replies: 13
- Views: 690
Re: Extra Credit
I'm in the same boat as you Janna, I am starting to feel very discouraged and stressed for the final.
- Fri Nov 27, 2020 2:26 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Bond Angles
- Replies: 25
- Views: 919
Re: Bond Angles
Here is a helpful summary of the molecular structures that we have done so far and their corresponding bond angles. Please feel free to add to this list! -linear 180 degrees -trigonal planar 120 degrees, -trigonal pyramidal 109.5 degrees -trigonal bipyramidal 90 degrees, 120 degrees -octahedral 90 ...
- Fri Nov 27, 2020 2:25 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 2975540
Re: Post All Chemistry Jokes Here
What kind of fish is made out of 2 sodium atoms?
2 Na
get it? (tuna)
2 Na
get it? (tuna)
- Fri Nov 27, 2020 2:23 pm
- Forum: Octet Exceptions
- Topic: Expanded Octet Question
- Replies: 8
- Views: 691
Re: Expanded Octet Question
Xe is permitted to expand its octet because of its energy level. It is able to hold 12 electrons. Another example of expanded electron is P which can hold up to 10 electrons.
- Fri Nov 27, 2020 2:19 pm
- Forum: Student Social/Study Group
- Topic: Final Exam Tips
- Replies: 24
- Views: 898
Re: Final Exam Tips
I tend to do all the practice problems assigned and then try to explain answers from sapling. I like to read the book to understand topics conceptually
- Fri Nov 27, 2020 2:17 pm
- Forum: Hybridization
- Topic: 2sp^2 vs 3sp^2
- Replies: 6
- Views: 422
Re: 2sp^2 vs 3sp^2
yes that it correct! follow the energy levels
- Wed Nov 18, 2020 5:19 pm
- Forum: Student Social/Study Group
- Topic: CHEM 14B Time Conflict
- Replies: 13
- Views: 622
Re: CHEM 14B Time Conflict
yea I don't think we 100% know if its asynchronous or not yet. So hopefully soon
- Wed Nov 18, 2020 5:14 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: What exactly is a dipole? [ENDORSED]
- Replies: 16
- Views: 1127
Re: What exactly is a dipole? [ENDORSED]
thank you all for answering this question! I was having trouble understanding this topic too
- Wed Nov 18, 2020 5:11 pm
- Forum: Lewis Structures
- Topic: When to add double or triple bonds
- Replies: 4
- Views: 172
Re: When to add double or triple bonds
Something I like to do to decide to add a triple or double bond is always finding the FC because sometimes, lone pairs is better than double bonds in relation to FC.
- Wed Nov 18, 2020 5:09 pm
- Forum: Student Social/Study Group
- Topic: Favorite TV shows
- Replies: 277
- Views: 34262
Re: Favorite TV shows
I was really into That's 70's show, but then Netflix took it down and I did not have the chance to finish it... rip. A show that I was really into before this was Prison Break. It is a pretty good show!!
- Wed Nov 18, 2020 5:05 pm
- Forum: Electron Configurations for Multi-Electron Atoms
- Topic: 3d vs 4s orbitals
- Replies: 4
- Views: 107
Re: 3d vs 4s orbitals
yes 4s will generally always come after 3d because 3d has lower energy than 4s.
- Wed Nov 18, 2020 5:02 pm
- Forum: General Science Questions
- Topic: Which would have lower ionization energy?
- Replies: 13
- Views: 703
Re: Which would have lower ionization energy?
Cl will have lower ionization energy because it is more to the right on the periodic table than O
- Wed Nov 18, 2020 5:00 pm
- Forum: Student Social/Study Group
- Topic: post midterm 2
- Replies: 27
- Views: 1090
Re: post midterm 2
Goodluck everyone who has not taken the midterm yet. I will be trying to catch up on my sleep after this!!
- Thu Nov 12, 2020 6:35 pm
- Forum: Student Social/Study Group
- Topic: Exercising Our Minds and Bodies
- Replies: 120
- Views: 15148
Re: Exercising Our Minds and Bodies
I like to keep my hands busy. I know this isn't really exercise, but I like to draw while listening to music when I am taking a break. Or even just go outside and get the mail haha
- Wed Nov 11, 2020 2:52 pm
- Forum: Formal Charge and Oxidation Numbers
- Topic: Oxidization Numbers
- Replies: 10
- Views: 528
Re: Oxidization Numbers
OwenSumter_3D wrote:
I found this guide for oxidation numbers online that I thought was helpful also.
thank youuuuu!!!!
- Wed Nov 11, 2020 2:50 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Step-Up Sessions
- Replies: 3
- Views: 177
Re: Step-Up Sessions
Yes they are still being held! these are the rest for today; Rosa Munoz 4-6 PM (Step-Up) & Matthew Tran 6-8 PM (Workshop)
- Wed Nov 11, 2020 2:48 pm
- Forum: Resonance Structures
- Topic: sapling week5/6 hw Q4
- Replies: 5
- Views: 186
Re: sapling week5/6 hw Q4
Hey yall! When choosing which resonance structure is least likely to contribute to the overall structure, would it be the Lewis Structure with the most charges? Or does this way of thinking not necessarily work all the time?
- Wed Nov 11, 2020 2:44 pm
- Forum: Ionic & Covalent Bonds
- Topic: Octet rule exceptions
- Replies: 15
- Views: 531
Re: Octet rule exceptions
Thank you everyone who answered this question. I was having trouble understanding this topic too
- Wed Nov 11, 2020 2:42 pm
- Forum: Student Social/Study Group
- Topic: How are you studying?
- Replies: 204
- Views: 17426
Re: How are you studying?
I have been studying by doing the problems from the syllabus. There is an answer key on sapling website, so when I am stuck I refer to that. The document is called Atkins 7e SSM. good luck studying everyone!!!!
- Wed Nov 11, 2020 2:40 pm
- Forum: Electron Configurations for Multi-Electron Atoms
- Topic: F-block?
- Replies: 7
- Views: 283
Re: F-block?
I don't think we really need to worry about f-block for this class or at least not yet since we haven't really practiced f-block
- Sun Nov 08, 2020 7:18 pm
- Forum: Student Social/Study Group
- Topic: Chemistry Among Us
- Replies: 43
- Views: 2062
Re: Chemistry Among Us
someone needs to teach me how to play. I've never played.
- Tue Nov 03, 2020 10:50 pm
- Forum: Quantum Numbers and The H-Atom
- Topic: Are there subshells past f?
- Replies: 28
- Views: 1031
Re: Are there subshells past f?
Even though I am pretty sure for this class we only need to be comfortable with s,p,d,f-orbitals, there are g,h,i,k,l orbitals and so on. However, I find it interesting that there is no j orbital.
- Tue Nov 03, 2020 10:45 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Second Midterm Date
- Replies: 9
- Views: 379
Re: Second Midterm Date
Pretty sure it will be like the first midterm. During your discussion, 55min.
- Tue Nov 03, 2020 10:43 pm
- Forum: Electronegativity
- Topic: Periodic Table Trend
- Replies: 40
- Views: 2205
Re: Periodic Table Trend
Electronegativity increases going right on the periodic table because the number of protons in the nucleus increases, the electronegativity or attraction will increase. The nucleus brings in the electrons closer together because of the increase in attraction. Electronegativity will then decrease go...
- Mon Nov 02, 2020 3:04 pm
- Forum: General Science Questions
- Topic: Sapling Homework
- Replies: 5
- Views: 290
Re: Sapling Homework
by going through the link on ccle it automatically logs you into sapling so I would say go to sapling through ccle.
- Fri Oct 30, 2020 10:40 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Midterm Exam Scores
- Replies: 15
- Views: 630
Re: Midterm Exam Scores
I hope you all did well on your exams! Pretty sure scores will be released early next week.
- Tue Oct 27, 2020 8:26 pm
- Forum: DeBroglie Equation
- Topic: UA Session: Wavelength of the ejected electron
- Replies: 2
- Views: 199
Re: UA Session: Wavelength of the ejected electron
I am pretty sure you are doing it correctly, I would have done it the same way too.