Search found 108 matches
- Mon Mar 15, 2021 9:34 pm
- Forum: Non-Equilibrium Conditions & The Reaction Quotient
- Topic: Acids and Bases
- Replies: 15
- Views: 938
Re: Acids and Bases
The best way is to memorize! The Strong Acids are: HCl hydrochloric acid HNO3 nitric acid H2SO4 sulfuric acid HBr hydrobromic acid HI hydroiodic acid HClO3 chloric acid HClO4 perchloric acid Strong Bases are: LiOH lithium hydroxide NaOH sodium hydroxide KOH potassium hydroxide Ca(OH)2 calcium hydrox...
- Mon Mar 15, 2021 9:29 pm
- Forum: Non-Equilibrium Conditions & The Reaction Quotient
- Topic: ICE Chart Question
- Replies: 26
- Views: 1654
Re: ICE Chart Question
You have to account for it "twice," once by writing in 2x and then a second time by squaring the concentration in the K expression.
- Mon Mar 15, 2021 5:29 pm
- Forum: Gibbs Free Energy Concepts and Calculations
- Topic: ΔG°, ΔH°, and ΔS°
- Replies: 5
- Views: 1195
Re: ΔG°, ΔH°, and ΔS°
Yes, naught usually implies that this reaction happens at standard conditions at 298 K (-:
- Mon Mar 15, 2021 5:27 pm
- Forum: Gibbs Free Energy Concepts and Calculations
- Topic: G° vs G
- Replies: 30
- Views: 2811
Re: G° vs G
I think of it like K and Q - G knott will be under standard conditions while G will be at adjusted conditions.
- Mon Mar 15, 2021 5:25 pm
- Forum: Gibbs Free Energy Concepts and Calculations
- Topic: Forward vs. Reverse
- Replies: 22
- Views: 2233
Re: Forward vs. Reverse
Forward and Reverse reactions should be, as was said earlier in the responses, relative to how the equation is presented to you. So if they give you
A -> B
The reverse would be
B -> A
A -> B
The reverse would be
B -> A
- Mon Mar 15, 2021 5:23 pm
- Forum: Third Law of Thermodynamics (For a Unique Ground State (W=1): S -> 0 as T -> 0) and Calculations Using Boltzmann Equation for Entropy
- Topic: Highest molar entropy (textbook)
- Replies: 4
- Views: 582
Re: Highest molar entropy (textbook)
Higher molar entropy is linked to more complex and larger molecules. Think about what would give a high w value, more ways to organize a structure (-:
- Mon Mar 15, 2021 5:20 pm
- Forum: Method of Initial Rates (To Determine n and k)
- Topic: k
- Replies: 36
- Views: 1715
Re: k
Yes, exactly. A larger k value will cause the reaction to be faster as long as concentration is constant.
- Mon Mar 15, 2021 5:14 pm
- Forum: Ideal Gases
- Topic: Exo vs Endothermic
- Replies: 40
- Views: 2723
Re: Exo vs Endothermic
I think the question may be referring to how increasing T increases Pressure, (PV=nRT) and when pressure is increased the reaction will shift to the side with less mols of gas.
- Mon Mar 15, 2021 5:09 pm
- Forum: Balancing Redox Reactions
- Topic: Oxidation Numbers: Provided or memorize?
- Replies: 26
- Views: 2163
Re: Oxidation Numbers: Provided or memorize?
I'd memorize the following information: 1. Any pure element has an oxidation state of zero. 2. The sum of the oxidation states of all atoms forming a molecule or ion is the net charge of that species. 3. In their compounds, group-1 metals have an oxidation state of +1 In their compounds, group-2 met...
- Mon Mar 15, 2021 5:07 pm
- Forum: Balancing Redox Reactions
- Topic: Oxidizing Vs Reducing agent
- Replies: 39
- Views: 2204
Re: Oxidizing Vs Reducing agent
The oxidizing agent is a molecule that is reduced (gains electrons) in the process of taking electrons away and oxidizing another molecule. The reducing agent will do the opposite, oxidized (loses electrons) in the process of giving them to another molecule and reducing it You can tell which molecul...
- Fri Mar 12, 2021 2:08 am
- Forum: Administrative Questions and Class Announcements
- Topic: Chemistry Community Deadlines
- Replies: 11
- Views: 1109
Re: Chemistry Community Deadlines
Im pretty sure most TAs count chem community posts overall and not per week . So don't stress!
- Fri Mar 12, 2021 2:06 am
- Forum: Student Social/Study Group
- Topic: Delta U=0
- Replies: 6
- Views: 506
Re: Delta U=0
Summer_Corona 3L wrote:tholz11 wrote:does this mean that w and q are always equal and opposite in isothermal rxns? or are they just both 0?
Yes, they're equal and opposite q=-w or w=-q
Thank you! I was rewatching lectures super confused about this earlier.
- Fri Mar 12, 2021 2:05 am
- Forum: Student Social/Study Group
- Topic: Oxidation #s
- Replies: 2
- Views: 234
Re: Oxidation #s
Hi! My TA shared this list with us in discussion: RULES FOR ASSIGNING OXIDATION STATES Chemists use the following ordered rules to assign an oxidation state to each element in a compound. 1. Any pure element has an oxidation state of zero. 2. The sum of the oxidation states of all atoms forming a m...
- Fri Mar 12, 2021 2:05 am
- Forum: Student Social/Study Group
- Topic: Classes for next quarter?
- Replies: 165
- Views: 20240
Re: Classes for next quarter?
LS7C, EEB100, 14C, Calteach, and a geology upper div (:
- Fri Mar 12, 2021 2:04 am
- Forum: Student Social/Study Group
- Topic: Calculators
- Replies: 52
- Views: 4007
Re: Calculators
I think any calculator should be allowed.
- Fri Mar 12, 2021 2:03 am
- Forum: Student Social/Study Group
- Topic: Fave food
- Replies: 266
- Views: 48125
Re: Fave food
Brian Acevedo 2E wrote:Ever since quarantine started last year I seem to have developed a serious craving for the most low-effort foods, like toast or cereal. I don't really know why either, since I really enjoying making food lol.
Cereal >>>>>
- Fri Mar 12, 2021 2:03 am
- Forum: Student Social/Study Group
- Topic: Fave food
- Replies: 266
- Views: 48125
Re: Fave food
I have been OBSESSED with matcha lattes lately. literally had 3 this week.
- Fri Mar 12, 2021 2:02 am
- Forum: Student Social/Study Group
- Topic: Playlist
- Replies: 86
- Views: 9004
Re: Playlist
The entire album "we just need some time together" by BETWEEN FRIENDS is killer. songs from it have been brought up a few times in this thread before haha.
- Fri Mar 12, 2021 2:00 am
- Forum: General Rate Laws
- Topic: Youtube Review
- Replies: 17
- Views: 1043
Re: Youtube Review
I love the organic chemistry tutor but sometimes his stuff is a little too basic..
- Fri Mar 12, 2021 1:59 am
- Forum: Student Social/Study Group
- Topic: Identifying Dr. Lavelle's Music
- Replies: 15
- Views: 972
Re: Identifying Dr. Lavelle's Music
Beginning of Lecture 17 was pools by Glass Animals !!
- Fri Mar 12, 2021 1:58 am
- Forum: Administrative Questions and Class Announcements
- Topic: Saying Thank You to Dr. Lavelle
- Replies: 490
- Views: 632033
Re: Saying Thank You to Dr. Lavelle
I've never taken a class so determined to get me to pass! Thank you Dr Lavelle!
- Fri Mar 12, 2021 1:57 am
- Forum: Student Social/Study Group
- Topic: Chemistry Community Posts
- Replies: 12
- Views: 745
Re: Chemistry Community Posts
The number under "your posts" should be correct
- Fri Mar 12, 2021 1:56 am
- Forum: Student Social/Study Group
- Topic: Delta U=0
- Replies: 6
- Views: 506
Re: Delta U=0
does this mean that w and q are always equal and opposite in isothermal rxns? or are they just both 0?
- Fri Mar 12, 2021 1:54 am
- Forum: Student Social/Study Group
- Topic: grades
- Replies: 8
- Views: 1054
Re: grades
I believe it should be
97+ A+
93 to < 97 A
90 to < 93 A-
87 to < 90 B+
83 to < 87 B
80 to < 83 B-
77 to < 80 C+
73 to < 77 C
70 to < 50 C-
50 and below is a Failing grade
97+ A+
93 to < 97 A
90 to < 93 A-
87 to < 90 B+
83 to < 87 B
80 to < 83 B-
77 to < 80 C+
73 to < 77 C
70 to < 50 C-
50 and below is a Failing grade
- Fri Mar 12, 2021 1:53 am
- Forum: Student Social/Study Group
- Topic: Note Taking
- Replies: 145
- Views: 19397
Re: Note Taking
For me, the best way to take notes is to write down the powerpoint and insert different extra notes he says in class. After class though, I find it really helpful to watch his video module (which is a lecture with roughly the same powerpoint) as a refresher and take any notes I missed while writing...
- Fri Mar 12, 2021 1:52 am
- Forum: Student Social/Study Group
- Topic: Note Taking
- Replies: 145
- Views: 19397
Re: Note Taking
I handwrite all my notes messy, then transfer the important info in an organized fashion into flashcards.
- Fri Mar 12, 2021 1:50 am
- Forum: Student Social/Study Group
- Topic: How do you deal with burnout?
- Replies: 144
- Views: 20907
Re: How do you deal with burnout?
I really like using a planner to split up the work I have to do. It makes it easier to manage everything and keep myself from burning out because I can complete smaller tasks over time rather than having a huge amount of work to complete at once. Planner totally saved my life this quarter. Makes ev...
- Fri Mar 12, 2021 1:48 am
- Forum: Student Social/Study Group
- Topic: Balance / Self Care Tips
- Replies: 62
- Views: 4012
Re: Balance / Self Care Tips
Personally doing an absolutely poor job of it. It was much easier to do with in-person classes because there was a clear distinction between classes and your free time. I just try to do my relaxing during the day when I'm most unproductive anyway and then study at night when I feel more awake. This...
- Fri Mar 12, 2021 1:47 am
- Forum: Student Social/Study Group
- Topic: Fave movie/show
- Replies: 67
- Views: 5705
Re: Fave movie/show
Anybody keeping up with the bachelor?? If michelle doesnt win Im losing faith in humanity lol.
- Fri Mar 12, 2021 1:46 am
- Forum: Student Social/Study Group
- Topic: chem community points
- Replies: 23
- Views: 1272
Re: chem community points
Allan Nguyen 2G wrote:50 points but don't forget that extra posts from previous weeks don't count I think
This depends on your TA.
- Fri Mar 12, 2021 1:46 am
- Forum: Student Social/Study Group
- Topic: chem community points
- Replies: 23
- Views: 1272
Re: chem community points
50 if you didnt take 14A with lavelle, 100 if you did!
- Fri Mar 12, 2021 1:45 am
- Forum: Student Social/Study Group
- Topic: How are y'all doing?
- Replies: 46
- Views: 3007
Re: How are y'all doing?
I've been trying to stay motivated by switching up my study spots and facetiming/zooming with friends to study together but its so difficult to keep my energy up at the end of the quarter tbh )-:
- Tue Mar 09, 2021 12:36 am
- Forum: General Science Questions
- Topic: No Lavelle Chem 14C?
- Replies: 68
- Views: 6146
Re: No Lavelle Chem 14C?
I've heard great things about Castillo!
- Tue Mar 09, 2021 12:34 am
- Forum: Student Social/Study Group
- Topic: Fave food
- Replies: 266
- Views: 48125
Re: Fave food
I just stopped being vegan after 4 years and I've been eating a crazy amount of sushi lol.
- Tue Mar 09, 2021 12:33 am
- Forum: Student Social/Study Group
- Topic: Chemistry Community Posts
- Replies: 16
- Views: 1013
Re: Chemistry Community Posts
Last quarter I got credit making literally 50 posts in week 9/10 haha. As evidenced by my current post count I'm hoping for a repeat of that.
- Tue Mar 09, 2021 12:31 am
- Forum: Student Social/Study Group
- Topic: What organizations are you guys in?
- Replies: 53
- Views: 3830
Re: What organizations are you guys in?
The orgs I spend the most time on are my social sorority, calfresh, bruin dine, and usac!
- Tue Mar 09, 2021 12:30 am
- Forum: Student Social/Study Group
- Topic: Moving to Westwood soon. Which restaurants should I visit?
- Replies: 45
- Views: 3364
Re: Moving to Westwood soon. Which restaurants should I visit?
Cava and Pinches are my favorites! The new meetfresh that just opened is also great
- Tue Mar 09, 2021 12:28 am
- Forum: Student Social/Study Group
- Topic: What do you miss / What are you looking forward to?
- Replies: 92
- Views: 13044
Re: What do you miss / What are you looking forward to?
hi chesca!
Bplate tacos simply hit different. Also random but I miss the geology building and epss department like crazy!
Bplate tacos simply hit different. Also random but I miss the geology building and epss department like crazy!
- Tue Mar 09, 2021 12:27 am
- Forum: Student Social/Study Group
- Topic: It is possible to study for the final in one day?
- Replies: 44
- Views: 4661
Re: It is possible to study for the final in one day?
I think its possible if you have been paying attention the whole quarter and staying on top of lectures, etc. Then you have the background info necessary. Good luck!
- Tue Mar 09, 2021 12:26 am
- Forum: Student Social/Study Group
- Topic: Culinary Chemistry
- Replies: 239
- Views: 41869
Re: Culinary Chemistry
Mari Williams 1K wrote:Butterfly pea flower tea changes color with pH! People add lemon juice and it makes it look really cool.
I just bought some! Im very excited to use it haha.
- Tue Mar 09, 2021 12:18 am
- Forum: Student Social/Study Group
- Topic: Culinary Chemistry
- Replies: 239
- Views: 41869
Re: Culinary Chemistry
Speaking of culinary chemistry, if anyone has any recipes that can be made with ~microwave~ radiation let me know. Dorm life is a struggle. Trader Joe's has a lot of really nice and delicious frozen food. I really like their potstickers and butter chicken, but they have a lot of variety. I also rec...
- Tue Feb 09, 2021 9:05 pm
- Forum: Student Social/Study Group
- Topic: Sapling HW and exams
- Replies: 19
- Views: 952
Re: Sapling HW and exams
Honestly, Sapling problems really helped me practice concepts last quarter in 14A. I recommend it!
- Tue Feb 09, 2021 9:05 pm
- Forum: Student Social/Study Group
- Topic: Students Who Have a Job
- Replies: 103
- Views: 13196
Re: Students Who Have a Job
Working and going to school is a real struggle. I'd recommend making sure you're putting aside time to study and reaching out for help from UAs, TAs, and professors when you can't.
- Tue Feb 09, 2021 9:03 pm
- Forum: Student Social/Study Group
- Topic: Silly Mistakes?
- Replies: 72
- Views: 7161
Re: Silly Mistakes?
This made me feel a lot better, thank you for sharing!
- Tue Feb 09, 2021 9:02 pm
- Forum: Student Social/Study Group
- Topic: Identifying Dr. Lavelle's Music
- Replies: 15
- Views: 972
Re: Identifying Dr. Lavelle's Music
I was super excited to hear a lot of Glass Animals, I'm a longtime fan haha.
- Tue Feb 09, 2021 8:57 pm
- Forum: Student Social/Study Group
- Topic: TEST BANKS?
- Replies: 6
- Views: 943
Re: TEST BANKS?
This is the general UCLA test bank
https://www.bruintestbank.com/chemistry/
https://www.bruintestbank.com/chemistry/
- Tue Feb 09, 2021 8:56 pm
- Forum: Student Social/Study Group
- Topic: Study tips for thermo
- Replies: 14
- Views: 960
Re: Study tips for thermo
Like mentioned above, I've found the textbook really helpful in breaking down the concepts and when you use which principles. Best of luck!
- Tue Feb 09, 2021 8:52 pm
- Forum: Student Social/Study Group
- Topic: Studying When You Don't Want to
- Replies: 48
- Views: 3476
Re: Studying When You Don't Want to
I think it helps to move your space to somewhere new! I found that sleeping in the same place where you work can be detrimental to your work ethic haha. from experience.
- Tue Feb 09, 2021 8:51 pm
- Forum: Student Social/Study Group
- Topic: Preparing for Midterm 2
- Replies: 14
- Views: 773
Re: Preparing for Midterm 2
UA sessions & doing the textbook problems are the best ways to study in my opinion!
- Tue Feb 09, 2021 8:44 pm
- Forum: Administrative Questions and Class Announcements
- Topic: How to find my posts
- Replies: 163
- Views: 176411
Re: How to find my posts
Go to your user ID and click "search user posts" and they should show up. Hope that helps!
- Tue Feb 09, 2021 8:40 pm
- Forum: Student Social/Study Group
- Topic: Culinary Chemistry
- Replies: 239
- Views: 41869
Re: Culinary Chemistry
Speaking of culinary chemistry, if anyone has any recipes that can be made with ~microwave~ radiation let me know. Dorm life is a struggle.
- Sun Jan 17, 2021 8:38 pm
- Forum: Student Social/Study Group
- Topic: 14B Groupme
- Replies: 12
- Views: 875
Re: 14B Groupme
The groupme is the same as last quarter!
- Sun Jan 17, 2021 8:37 pm
- Forum: Student Social/Study Group
- Topic: Participation
- Replies: 56
- Views: 3508
Re: Participation
Yes, we have been getting points weekly
- Sun Jan 17, 2021 8:36 pm
- Forum: Student Social/Study Group
- Topic: Exercising Our Minds and Bodies
- Replies: 120
- Views: 28259
Re: Exercising Our Minds and Bodies
I went on a run today with my housemate!
- Sun Jan 17, 2021 8:36 pm
- Forum: Student Social/Study Group
- Topic: Sapling Homework
- Replies: 15
- Views: 947
Re: Sapling Homework
Yes, it will be due weekly this quarter.
- Sun Jan 17, 2021 8:35 pm
- Forum: Student Social/Study Group
- Topic: Sapling Homework
- Replies: 7
- Views: 440
Re: Sapling Homework
It gives you no credit for the question /-:
- Sat Jan 09, 2021 1:04 pm
- Forum: Non-Equilibrium Conditions & The Reaction Quotient
- Topic: Q and K
- Replies: 17
- Views: 835
Re: Q and K
You would need to calculate Q again to figure out whether or not the equation is at equilibrium
- Sat Jan 09, 2021 1:01 pm
- Forum: Ideal Gases
- Topic: Sapling Homework
- Replies: 22
- Views: 1036
Re: Sapling Homework
By messing around with the website for a while I was able to access sapling with my previous code. Trying clicking "use credit" when it prompts you.
- Sat Dec 12, 2020 5:03 pm
- Forum: Student Social/Study Group
- Topic: How to study for class
- Replies: 30
- Views: 1557
Re: How to study for class
I recommend the textbook for the practice problems, as well as UA sessions/worksheets
- Sat Dec 12, 2020 5:03 pm
- Forum: Student Social/Study Group
- Topic: Winter Break
- Replies: 44
- Views: 2788
Re: Winter Break
Have a good outline/ quick reference notes to look back on (-:
- Sat Dec 12, 2020 5:02 pm
- Forum: Student Social/Study Group
- Topic: Practice Problems for final
- Replies: 4
- Views: 622
Re: Practice Problems for final
I recommend the textbook, UA worksheets, or 14A test bank. Here's a link to some of those resources https://docs.google.com/document/d/1Qjb ... 1NHcc/edit
- Sat Dec 12, 2020 5:01 pm
- Forum: Student Social/Study Group
- Topic: Finals Study Things
- Replies: 27
- Views: 1518
Re: Finals Study Things
Thank you so much!!
- Sat Dec 12, 2020 4:59 pm
- Forum: Student Social/Study Group
- Topic: SATURDAY Q+A W/ MEL
- Replies: 5
- Views: 507
Re: SATURDAY Q+A W/ MEL
Hi Mel! Thanks so much for having a session!
Can you go over how to tell if an atom is mono or polydentate?
Can you go over how to tell if an atom is mono or polydentate?
- Wed Dec 09, 2020 6:49 pm
- Forum: Significant Figures
- Topic: 12/07 Lecture sig figs
- Replies: 4
- Views: 467
Re: 12/07 Lecture sig figs
Pretty sure lavelle made a mistake here
- Sat Dec 05, 2020 9:14 pm
- Forum: Student Social/Study Group
- Topic: Practice Exam for Final
- Replies: 23
- Views: 1458
Re: Practice Exam for Final
Textbook problems and UA sessions are probably the best ways to prepare for the final. They seem to have the most similarity to the actual exams he gives us.
- Sat Dec 05, 2020 9:13 pm
- Forum: Student Social/Study Group
- Topic: Grading Scale for Chem14A
- Replies: 29
- Views: 1822
Re: Grading Scale for Chem14A
almost_ethan wrote:tholz11 wrote:I believe you need a 93% to receive an A in the class
Does anyone else know if this is true? :0
Sorry if this was a confusing way to phrase this haha. 90% is still an A- but to get an A you need 93
- Sat Dec 05, 2020 9:11 pm
- Forum: Student Social/Study Group
- Topic: Calculating grade
- Replies: 24
- Views: 1733
Re: Calculating grade
If we missed a question on sapling is that factored into the grade? As in, do we lose points off our grade?
- Sat Dec 05, 2020 9:09 pm
- Forum: Student Social/Study Group
- Topic: Sapling learning
- Replies: 4
- Views: 434
Re: Sapling learning
saplinglearning.com/ibiscms/login/ should work
- Sun Nov 29, 2020 6:32 pm
- Forum: Student Social/Study Group
- Topic: Professor Lavelle's hat
- Replies: 17
- Views: 1229
Re: Professor Lavelle's hat
Lillian wrote:305311217 wrote:I would love to hear professor Lavelle's input on this. I've been thinking the same thing haha.
Ey it might not be the best idea to have your name as your student ID. It's kinda important, man.
My bad, didn't notice that I had it as that.
Does UID fraud actually happen?
- Sun Nov 29, 2020 6:29 pm
- Forum: Student Social/Study Group
- Topic: Participation
- Replies: 56
- Views: 3508
Re: Participation
Do you guys know if we're allowed to "make up" participation points from posts. Like if we make 4 posts one week and 6 the next?
- Sun Nov 29, 2020 6:27 pm
- Forum: Student Social/Study Group
- Topic: How to relax after midterms
- Replies: 54
- Views: 3590
Re: How to relax after midterms
I like to leave my room and make a target run or walk somewhere in westwood, it makes me feel like a person again haha. Also a good way to destress and focus your energy on something other than school for a bit.
- Sun Nov 29, 2020 6:26 pm
- Forum: Student Social/Study Group
- Topic: Midterm Exam Questions
- Replies: 16
- Views: 899
Re: Midterm Exam Questions
I think you have to make a time to discuss with your TA, I'm not sure if we are allowed to discuss on chemistry community .
- Sun Nov 29, 2020 6:24 pm
- Forum: Student Social/Study Group
- Topic: Final Format
- Replies: 35
- Views: 1962
Re: Final Format
I assume it'll be similar to the midterms but longer, and 180 points.
- Sun Nov 29, 2020 6:24 pm
- Forum: Student Social/Study Group
- Topic: Final Format
- Replies: 35
- Views: 1962
Re: Final Format
I assume it'll be similar to the midterms but longer, and 180 points.
- Sun Nov 29, 2020 5:40 pm
- Forum: Student Social/Study Group
- Topic: Big Sad: Midterm 2
- Replies: 86
- Views: 8290
Re: Big Sad: Midterm 2
Yea what a mood. I was hoping for a high B/low A in the class and after the second midterm that is not feeling probable. I'm glad at least we can get a passing grade with 50%.
- Sun Nov 29, 2020 5:39 pm
- Forum: Student Social/Study Group
- Topic: Midterm Partial Credit
- Replies: 19
- Views: 1203
Re: Midterm Partial Credit
Did we receive partial credit for Midterm 2?
- Sun Nov 29, 2020 5:38 pm
- Forum: Student Social/Study Group
- Topic: Grading Scale for Chem14A
- Replies: 29
- Views: 1822
Re: Grading Scale for Chem14A
I believe you need a 93% to receive an A in the class
- Sun Nov 29, 2020 5:37 pm
- Forum: Student Social/Study Group
- Topic: Winter 2021 Classes
- Replies: 20
- Views: 1174
Re: Winter 2021 Classes
12 units is the minimum for a full time student and 19 units is the maximum unless you have an exception so you can have more units (-:
- Sun Nov 29, 2020 5:33 pm
- Forum: Student Social/Study Group
- Topic: Final Study
- Replies: 32
- Views: 1782
Re: Final Study
Usually I start studying for finals the week after thanksgiving. I'm planning on reviewing concepts with youtube videos and doing practice problems from the book! (-:
- Sun Nov 29, 2020 5:31 pm
- Forum: Limiting Reactant Calculations
- Topic: Testing with a periodic table
- Replies: 17
- Views: 789
Re: Testing with a periodic table
We're all meant to use the same periodic table from Professor Lavelle's website
- Sun Nov 29, 2020 5:26 pm
- Forum: Limiting Reactant Calculations
- Topic: Cl vs Cl2
- Replies: 9
- Views: 7421
Re: Cl vs Cl2
Yes, Chlorine gas would be Cl2 and Oxygen gas would be O2
- Sun Nov 29, 2020 5:21 pm
- Forum: Limiting Reactant Calculations
- Topic: Combustion
- Replies: 10
- Views: 636
Re: Combustion
In combustion reactions, Oxygen is always in excess unless stated otherwise!
- Sun Nov 29, 2020 5:19 pm
- Forum: Empirical & Molecular Formulas
- Topic: Periodic Table and Calculations
- Replies: 21
- Views: 1769
Re: Periodic Table and Calculations
I recommend a TI-84 calculator and using the periodic table Lavelle provides for us on his website.
- Sun Nov 29, 2020 5:14 pm
- Forum: Coordinate Covalent Bonds
- Topic: Hydrogen bonds
- Replies: 20
- Views: 1449
Re: Hydrogen bonds
Hydrogen and Carbon's electronegativities are too similar to create the polarity needed for Hydrogen bonds to form.
- Sun Nov 29, 2020 5:12 pm
- Forum: Student Social/Study Group
- Topic: Periodic Table on Midterm
- Replies: 5
- Views: 370
Re: Periodic Table on Midterm
As said above, we have to use the blank periodic table Lavelle provides for us on his website
- Sun Nov 29, 2020 5:10 pm
- Forum: Student Social/Study Group
- Topic: Professor Lavelle's hat
- Replies: 17
- Views: 1229
Re: Professor Lavelle's hat
I would love to hear professor Lavelle's input on this. I've been thinking the same thing haha.
- Sun Nov 29, 2020 5:09 pm
- Forum: Student Social/Study Group
- Topic: Happy Thanksgiving!
- Replies: 39
- Views: 2310
Re: Happy Thanksgiving!
Happy Late Thanksgiving! My family likes to go on a road trip up the PCH over break, but this year it wasn't really possible with corona.
- Sun Nov 29, 2020 5:06 pm
- Forum: Student Social/Study Group
- Topic: Exercising Our Minds and Bodies
- Replies: 120
- Views: 28259
Re: Exercising Our Minds and Bodies
When I'm feeling overwhelmed I like to go on runs around Janns and the Sculpture garden!
- Sun Nov 29, 2020 5:05 pm
- Forum: Student Social/Study Group
- Topic: Studying From Home
- Replies: 91
- Views: 8964
Re: Studying From Home
I like to move out of my room to study to seperate "work space" from resting space. It forces me to pay better attention!
- Sun Nov 29, 2020 5:03 pm
- Forum: Student Social/Study Group
- Topic: Week 8/9 Thoughts/Worries
- Replies: 66
- Views: 4632
Re: Week 8/9 Thoughts/Worries
I was feeling really good at the beginning of the quarter but the 2nd midterm didn't go well for me and now im stressed about the final because I need to perform very well )-:
- Sun Nov 29, 2020 5:02 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3913893
Re: Post All Chemistry Jokes Here
i can only tell bad chemistry jokes because all the good ones argon )-:
- Sun Nov 29, 2020 4:58 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Weekly Discussion grades
- Replies: 9
- Views: 398
Re: Weekly Discussion grades
So do we not get credit for attending section?
- Thu Nov 26, 2020 9:28 pm
- Forum: Wave Functions and s-, p-, d-, f- Orbitals
- Topic: Section 1D #25
- Replies: 2
- Views: 316
Re: Section 1D #25
the n=2 level would need to have 5 orbitals for 2d to exist, which is impossible as the only l values possible are 0 and 1. Therefore the largest ml range is -1 to +1 and the largest possible number of subshells at n=2 is 3. Hope that helps!
- Thu Nov 26, 2020 9:23 pm
- Forum: Wave Functions and s-, p-, d-, f- Orbitals
- Topic: Schrodinger's Wave Function Equation
- Replies: 4
- Views: 313
Re: Schrodinger's Wave Function Equation
Pretty sure Schrodinger's Wave Function is just used as a way to better understand and conceptualize atomic orbitals.
- Thu Nov 26, 2020 8:07 pm
- Forum: Wave Functions and s-, p-, d-, f- Orbitals
- Topic: Nodes in the d orbital
- Replies: 4
- Views: 467
Re: Nodes in the d orbital
Nodes are proportional to the l value, therefore it has 2 nodes
- Thu Nov 26, 2020 7:57 pm
- Forum: *Black Body Radiation
- Topic: Understanding Black Body Radiation
- Replies: 8
- Views: 785
Re: Understanding Black Body Radiation
Black Body radiation is a theoretical concept, because no such object actually exists with these properties. However, in theory a black body is able to absorb any frequency of light and emit radiation at any wavelength. Any emission is called black body radiation.
- Thu Nov 26, 2020 7:53 pm
- Forum: Significant Figures
- Topic: Multiplying versus adding
- Replies: 10
- Views: 703
Re: Multiplying versus adding
Yup you got it!
As was said above, For addition and subtraction, round to the least amount of decimal places, and when you're multiplying or dividing use the same number of sig figs as the number with the least.
As was said above, For addition and subtraction, round to the least amount of decimal places, and when you're multiplying or dividing use the same number of sig figs as the number with the least.
- Thu Nov 26, 2020 7:48 pm
- Forum: Significant Figures
- Topic: 40. versus 40
- Replies: 23
- Views: 1782
Re: 40. versus 40
Yes. Trailing 0s don't count unless there is a decimal present.
- Thu Nov 26, 2020 7:47 pm
- Forum: SI Units, Unit Conversions
- Topic: How to memorize prefixes
- Replies: 36
- Views: 4015
Re: How to memorize prefixes
Lots of repetition and practice problems will help you over time. If you're still struggling approaching the final making a quizlet would be a great idea!
- Thu Nov 26, 2020 7:44 pm
- Forum: Wave Functions and s-, p-, d-, f- Orbitals
- Topic: Determining an orbital
- Replies: 10
- Views: 667
Re: Determining an orbital
I agree with all the above posts,
n describes the electron shell
l describes the subshell (when l is 0, S, when l is 1, P)
ml is the different orbitals of the subshell
Therefore l would determine 3s vs 3p . Hope that helps!
n describes the electron shell
l describes the subshell (when l is 0, S, when l is 1, P)
ml is the different orbitals of the subshell
Therefore l would determine 3s vs 3p . Hope that helps!