Search found 100 matches
- Mon Mar 15, 2021 9:40 pm
- Forum: Calculating Work of Expansion
- Topic: irreversible vs reversible work
- Replies: 6
- Views: 614
Re: irreversible vs reversible work
Reversible usually has smaller steps while irreversible is normally under a constraint.
- Mon Mar 15, 2021 9:39 pm
- Forum: Non-Equilibrium Conditions & The Reaction Quotient
- Topic: ICE Chart Question
- Replies: 26
- Views: 1676
Re: ICE Chart Question
You have to do both, I can't explain why but I guess the concentration has some sort of exponential effect on the constant
- Sun Mar 14, 2021 10:32 pm
- Forum: General Science Questions
- Topic: No Lavelle Chem 14C?
- Replies: 68
- Views: 6366
Re: No Lavelle Chem 14C?
Do yall know if anymore spots are gonna open up?
- Sun Mar 14, 2021 10:30 pm
- Forum: General Science Questions
- Topic: Final thoughts
- Replies: 28
- Views: 5181
Re: Final thoughts
Honestly i prefer in person learning, but at the same time I feel like the assessments would also be much harder.
- Sun Mar 14, 2021 10:29 pm
- Forum: Administrative Questions and Class Announcements
- Topic: THANK YOU DR LAVELLE!
- Replies: 47
- Views: 7185
Re: THANK YOU DR LAVELLE!
Yall are the BEST!
- Sun Mar 14, 2021 10:29 pm
- Forum: Student Social/Study Group
- Topic: Playlist
- Replies: 86
- Views: 9268
Re: Playlist
Seraphina Joseph 1C wrote:Constance Newell wrote:My all time favorite is Chicken Fried by the Zac Brown band
give it a try :) i promise its really good
I love that song too!
OH MY GOSH! Another fellow country fan :)
- Sun Mar 14, 2021 10:28 pm
- Forum: General Science Questions
- Topic: Final thoughts
- Replies: 28
- Views: 5181
Re: Final thoughts
The questions seemed much more straight forward than the finals
- Sun Mar 07, 2021 9:36 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: Positive vs Negative cell potential
- Replies: 10
- Views: 1205
Re: Positive vs Negative cell potential
it indicates spontaneity, so +E and -G
- Sun Mar 07, 2021 9:34 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: Cell Notation
- Replies: 5
- Views: 444
Re: Cell Notation
It tends to be more solid outside and more aqueous/liquid inside, but what it really does is follow the flow of electrons and sequence which the reactions take place
- Sun Mar 07, 2021 9:33 pm
- Forum: General Rate Laws
- Topic: Why are there negative orders
- Replies: 14
- Views: 745
Re: Why are there negative orders
I believe this is due to equilibrium
- Sun Mar 07, 2021 9:30 pm
- Forum: Van't Hoff Equation
- Topic: Test
- Replies: 10
- Views: 902
Re: Test
By test 2 do yall mean final? or am i just confused
- Sun Mar 07, 2021 9:29 pm
- Forum: General Science Questions
- Topic: Grading
- Replies: 9
- Views: 1235
Re: Grading
And yes, it does take a bit for the grades to update. If you don't see a change within 3 schooldays i would check in with ur TA
- Sun Feb 28, 2021 10:57 pm
- Forum: Student Social/Study Group
- Topic: Chem 14B Final
- Replies: 86
- Views: 6916
Re: Chem 14B Final
Is the Final going to be on Saturday? i think i saw it in the syllabus but i am not completely sure....does anyone have anymore info on how it is going to work? like are their different sessions like the midterm or is everyone taking it at once?
- Sun Feb 28, 2021 10:53 pm
- Forum: Balancing Redox Reactions
- Topic: Sapling Week 7 and 8 #2
- Replies: 4
- Views: 297
Re: Sapling Week 7 and 8 #2
You just put your two equations together, products on one side and reactants on one side. It seems that you have done your coefficients correct. If so, the electrons should cancel out
- Sun Feb 28, 2021 10:48 pm
- Forum: General Science Questions
- Topic: Midterm 2 Reactions
- Replies: 79
- Views: 7691
Re: Midterm 2 Reactions
lol...maybe its just me but i think i did worse on this test.. definitely a fair exam tho..just gotta study more
- Sun Feb 28, 2021 10:46 pm
- Forum: Student Social/Study Group
- Topic: Playlist
- Replies: 86
- Views: 9268
Re: Playlist
My all time favorite is Chicken Fried by the Zac Brown band
give it a try :) i promise its really good
give it a try :) i promise its really good
- Sun Feb 28, 2021 9:15 pm
- Forum: Balancing Redox Reactions
- Topic: Sapling Glitch
- Replies: 2
- Views: 247
Re: Sapling Glitch
You have to go to the drop down menu for attepts and click in the empty box above attempt one and then hit resume
- Mon Feb 22, 2021 11:52 am
- Forum: Student Social/Study Group
- Topic: Chem 14B Final
- Replies: 86
- Views: 6916
Re: Chem 14B Final
Lectures are very helpful for conceptual ideas and textbook problems are great for working on harder problems. Sapling is good for understanding basic concepts and formulas.
- Tue Feb 16, 2021 8:06 pm
- Forum: General Science Questions
- Topic: No Lavelle Chem 14C?
- Replies: 68
- Views: 6366
Re: No Lavelle Chem 14C?
AWW man guys...... 14C is all filled up
- Mon Feb 15, 2021 4:54 pm
- Forum: General Science Questions
- Topic: No Lavelle Chem 14C?
- Replies: 68
- Views: 6366
Re: No Lavelle Chem 14C?
Does anyone know if the lectures are recorded/asynchronous or do we have to attend live?
- Mon Feb 15, 2021 4:46 pm
- Forum: General Science Questions
- Topic: No Lavelle Chem 14C?
- Replies: 68
- Views: 6366
Re: No Lavelle Chem 14C?
Nika Gladkov 1A wrote:Dr. Lavelle only teaches 14A and 14B. Dr. Castillo is the professor for 14C.
AWWWWW....I really want Lavelle again...that's sad
- Mon Feb 15, 2021 4:45 pm
- Forum: Ideal Gases
- Topic: Chem BL
- Replies: 107
- Views: 10872
Re: Chem BL
Caelin Brenninkmeijer 1G wrote:Constance Newell wrote:I'm taking 14 BL right now.. most of the chemistry is pretty basic so I wouldn't stress out about it... whenever you take it
Is there a final for BL?
There is a final, but only 1 midterm
- Mon Feb 15, 2021 4:45 pm
- Forum: Student Social/Study Group
- Topic: Points needed to pass?
- Replies: 76
- Views: 10573
Re: Points needed to pass?
From what I understand its much easier to get a C then it is to get an A... i think a 50% is needed for a C
- Mon Feb 15, 2021 4:44 pm
- Forum: Student Social/Study Group
- Topic: Studying for Midterm 2
- Replies: 45
- Views: 2296
Re: Studying for Midterm 2
Textbook problems are the way to goo!
- Mon Feb 15, 2021 4:43 pm
- Forum: Student Social/Study Group
- Topic: Midterm 2 Nerves
- Replies: 40
- Views: 2271
Re: Midterm 2 Nerves
It feels too soon
- Mon Feb 15, 2021 4:42 pm
- Forum: General Science Questions
- Topic: No Lavelle Chem 14C?
- Replies: 68
- Views: 6366
No Lavelle Chem 14C?
Am i blind or is Lavelle not showing up for 14 C :(
- Sun Feb 07, 2021 11:31 pm
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: R Constant
- Replies: 91
- Views: 8176
Re: R Constant
Check the units first! You wanna zero everything out
- Sun Feb 07, 2021 11:30 pm
- Forum: Student Social/Study Group
- Topic: Superbowl Sunday
- Replies: 26
- Views: 1915
Re: Superbowl Sunday
NGL....ive never heard of either team
- Sun Feb 07, 2021 11:28 pm
- Forum: Student Social/Study Group
- Topic: Post Midterm 1...
- Replies: 39
- Views: 2065
Re: Post Midterm 1...
AHH why is our next midterm so soon.... I feel like we just finished one.
This quarter system really be kicking be in the [censored]
This quarter system really be kicking be in the [censored]
- Sun Feb 07, 2021 11:25 pm
- Forum: Ideal Gases
- Topic: Chem BL
- Replies: 107
- Views: 10872
Re: Chem BL
I'm taking 14 BL right now.. most of the chemistry is pretty basic so I wouldn't stress out about it... whenever you take it
- Mon Feb 01, 2021 7:23 am
- Forum: Administrative Questions and Class Announcements
- Topic: Grading scale
- Replies: 29
- Views: 3537
Re: Grading scale
I believe its much easier to get a C=which is covered... then an A= which is pretty standard... from my understanding
- Mon Feb 01, 2021 7:22 am
- Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
- Topic: Pressure affects only gas reactions?
- Replies: 23
- Views: 1956
Re: Pressure affects only gas reactions?
I believe it only effects gasses..... I could be wrong but I don't think it effects inert gasses tho.
- Mon Feb 01, 2021 7:19 am
- Forum: General Science Questions
- Topic: Midterm 1 Reactions
- Replies: 70
- Views: 6244
Re: Midterm 1 Reactions
That was definitely tricky. There were a some questions from the textbook.....those were probably the only questions I was confident in....and then the reset were quite challenging.
- Tue Jan 26, 2021 6:41 pm
- Forum: Administrative Questions and Class Announcements
- Topic: MIDTERM Location
- Replies: 5
- Views: 231
MIDTERM Location
Hey this has probably already been answered but what zoom link do we join for the midterm?
is it the same one as for discussion section or is it something different?
is it the same one as for discussion section or is it something different?
- Tue Jan 26, 2021 3:02 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Discussion Section on day of Midterm
- Replies: 6
- Views: 353
Re: Discussion Section on day of Midterm
I have the same question!
I know for my Friday discussion we will still have it.
But, is the zoom link we are supposed to join for the midterm our discussion link or is there going to be another link?
I know for my Friday discussion we will still have it.
But, is the zoom link we are supposed to join for the midterm our discussion link or is there going to be another link?
- Mon Jan 25, 2021 4:52 am
- Forum: Phase Changes & Related Calculations
- Topic: Endothermic v. Exothermic
- Replies: 139
- Views: 18421
Re: Endothermic v. Exothermic
Exothermic reactions have a negative delta H and endothermic reactions have a positive delta H
- Mon Jan 25, 2021 4:50 am
- Forum: Student Social/Study Group
- Topic: How are you?
- Replies: 154
- Views: 18122
Re: How are you?
Tired...but good luck on on the midterm guys!
- Mon Jan 25, 2021 4:48 am
- Forum: Student Social/Study Group
- Topic: Study Guide - Midterm?
- Replies: 14
- Views: 911
Re: Study Guide - Midterm?
The text-book problems are an amazing resource!
- Mon Jan 25, 2021 4:47 am
- Forum: Student Social/Study Group
- Topic: 14B Groupme
- Replies: 12
- Views: 878
Re: 14B Groupme
Awesome Thank you!
- Mon Jan 25, 2021 4:46 am
- Forum: Administrative Questions and Class Announcements
- Topic: Grading scale
- Replies: 29
- Views: 3537
Re: Grading scale
I think it will depend on what the average distribution is but the above comments are generally right. 93 ish will be a pretty standard A while what is considered as passing will vary.
- Sun Jan 17, 2021 7:16 pm
- Forum: General Science Questions
- Topic: class 1/18/21
- Replies: 13
- Views: 815
Re: class 1/18/21
above replies are correct, no class tomorrow :)
- Sun Jan 17, 2021 7:15 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Sapling Week 1 #9
- Replies: 11
- Views: 829
Re: Sapling Week 1 #9
I'm not completely sure what you did but I believe your x-value is wrong. Some tips to make sure your doing these types of questions is to remember if the reaction when balanced has the products have a coefficient greater than 1 then remember when going through the reverse reaction to subtract 2x n...
- Sun Jan 17, 2021 7:10 pm
- Forum: Student Social/Study Group
- Topic: Study Strategies
- Replies: 31
- Views: 1510
Re: Study Strategies
I find that the textbook problems are really helpful
- Sun Jan 17, 2021 7:08 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Sapling Week 1 #9
- Replies: 11
- Views: 829
Re: Sapling Week 1 #9
At equilibrium, the concentrations in this system were found to be [N2]=[O2]=0.200 M and [NO]=0.600 M. N2(g)+O2(g)↽−−⇀2NO(g) If more NO is added, bringing its concentration to 0.900 M, what will the final concentration of NO be after equilibrium is re‑established? I keep getting 0.75 my K is 9 and ...
- Sun Jan 17, 2021 6:51 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Sapling Week 1 #9
- Replies: 11
- Views: 829
Sapling Week 1 #9
At equilibrium, the concentrations in this system were found to be [N2]=[O2]=0.200 M and [NO]=0.600 M. N2(g)+O2(g)↽−−⇀2NO(g) If more NO is added, bringing its concentration to 0.900 M, what will the final concentration of NO be after equilibrium is re‑established? I keep getting 0.75 my K is 9 and x...
- Sun Jan 10, 2021 8:42 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Accessing the E-textbook [ENDORSED]
- Replies: 125
- Views: 35833
Re: Accessing the E-textbook [ENDORSED]
Isabel Luu 1I wrote:Are there solutions posted anywhere for the extra practice textbook problems (not the Sapling questions)?
Usually not. But you can find answers for most of them at the end of the textbook. And if you can't, usually chemistry community (here) has the answer
- Sun Jan 10, 2021 8:40 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Accessing the E-textbook [ENDORSED]
- Replies: 125
- Views: 35833
Re: Accessing the E-textbook [ENDORSED]
The assignments we have due for this class are the 5 chemistry community posts and sapling every week, both worth the same amount of points
- Sun Jan 10, 2021 8:38 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Accessing the E-textbook [ENDORSED]
- Replies: 125
- Views: 35833
Re: Accessing the E-textbook [ENDORSED]
Also buying the fullterm one will save you more money and if u don't use it, it acts like credit..so u can use it for other classes
- Sun Jan 10, 2021 8:33 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Accessing the E-textbook [ENDORSED]
- Replies: 125
- Views: 35833
Re: Accessing the E-textbook [ENDORSED]
Sapling is automatically graded and we do have HW assignments due for it every sunday
- Thu Dec 17, 2020 8:17 am
- Forum: General Science Questions
- Topic: Grading
- Replies: 9
- Views: 1235
Re: Grading
I know this is off on a tangent but what is considered an A for the class? is it a 90 or a 92? thank you!
- Thu Dec 17, 2020 8:16 am
- Forum: Student Social/Study Group
- Topic: grade calculation
- Replies: 12
- Views: 837
Re: grade calculation
We should receive our grades sometime after Thursday.. when exactly I am not 100% sure
- Thu Dec 17, 2020 8:15 am
- Forum: General Science Questions
- Topic: final timing
- Replies: 25
- Views: 1665
Re: final timing
Yes I felt like I was really rushing in the end. The sad part is that i felt like i understood how to solve all the questions, i just didn't have anytime to do it
- Sun Dec 13, 2020 1:27 pm
- Forum: Student Social/Study Group
- Topic: Final Exam
- Replies: 49
- Views: 3103
Re: Final Exam
..... really hope there's a curve
- Sun Dec 13, 2020 1:22 pm
- Forum: Student Social/Study Group
- Topic: Final Exam
- Replies: 49
- Views: 3103
Re: Final Exam
Oh my gosh! same! I felt like I was rushing a lot on this exam. I felt like the Midterm was much less of a time crunch than the final... like i felt it was literally impossible to finish the exam on time. the midterms weren't really representative of the final. Well its over now so not much I can do...
- Wed Dec 09, 2020 7:17 am
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: Sapling Week 9 #3
- Replies: 1
- Views: 107
Sapling Week 9 #3
Which geometry or geometrics are common for complexes with a coordination number of 4?
1.Square Planar **
2. Seesaw
3.Tetrahedral**
4. Trigonal Bipyramidal
Sapling says only 1 and 3 are the answers. Can someone explain to me why see-saw is not a possible answer?
Thank you!
1.Square Planar **
2. Seesaw
3.Tetrahedral**
4. Trigonal Bipyramidal
Sapling says only 1 and 3 are the answers. Can someone explain to me why see-saw is not a possible answer?
Thank you!
- Sun Dec 06, 2020 9:42 pm
- Forum: Student Social/Study Group
- Topic: final study
- Replies: 42
- Views: 2231
Re: final study
Ill be attending as many review sesssions as possible, complete textbook problems for new units, and review sapling for old units
- Sun Dec 06, 2020 9:41 pm
- Forum: Lewis Acids & Bases
- Topic: Strong Acids and Strong Bases
- Replies: 6
- Views: 507
Re: Strong Acids and Strong Bases
The main things is that Strong Acids and Bases will dissociate/breakup in a solution
- Sun Dec 06, 2020 9:40 pm
- Forum: Student Social/Study Group
- Topic: Favorite TV shows
- Replies: 277
- Views: 53138
Re: Favorite TV shows
The Walking Dead and Gilmore Girls are by for my favorite!
- Sun Dec 06, 2020 9:37 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Final Zoom Link
- Replies: 6
- Views: 506
Re: Final Zoom Link
Are we still going to need a separate device for a camera
- Sun Dec 06, 2020 9:34 pm
- Forum: Student Social/Study Group
- Topic: Week 8/9 Thoughts/Worries
- Replies: 66
- Views: 4735
Re: Week 8/9 Thoughts/Worries
Im feeling a bit stressed about final bc my second midterm was worse than my second... and each question is worth so many points :(
- Sun Dec 06, 2020 9:33 pm
- Forum: Naming
- Topic: Naming quizlet
- Replies: 41
- Views: 2061
Re: Naming quizlet
Thank you so much!
- Mon Nov 30, 2020 12:31 am
- Forum: Student Social/Study Group
- Topic: Grading Scale for Chem14A
- Replies: 29
- Views: 1835
Re: Grading Scale for Chem14A
OMG, yes! each question on an exam is worth so much of our grade!
But i think 93+ is an A (4.0)
But i think 93+ is an A (4.0)
- Mon Nov 30, 2020 12:30 am
- Forum: Student Social/Study Group
- Topic: Chemistry Among Us
- Replies: 43
- Views: 2783
Re: Chemistry Among Us
Yay, I think I would follow green too!
- Mon Nov 30, 2020 12:28 am
- Forum: Student Social/Study Group
- Topic: Final Exam Structure
- Replies: 12
- Views: 802
Re: Final Exam Structure
Is our exam still on the weekend? Or did the date change?
- Mon Nov 30, 2020 12:27 am
- Forum: Administrative Questions and Class Announcements
- Topic: Advice from a Medical Student - Part II [ENDORSED]
- Replies: 298
- Views: 319064
Re: Advice from a Medical Student - Part II [ENDORSED]
Thank you so much for sharing!
- Fri Nov 20, 2020 8:50 pm
- Forum: Electronegativity
- Topic: Trick for remembering periodic trends
- Replies: 11
- Views: 3606
Trick for remembering periodic trends
Learned this in highschool and found it to be really helpful for remembering certain trends: Periodic table: across down A ↓ ↑ I ↑ ↓ M ↓ ↑ E ↑ ↓ S -- ↑ A: atomic radius I: ionizing energy M: metallic properties E: electronegativity S: shells
- Fri Nov 20, 2020 8:36 pm
- Forum: Sigma & Pi Bonds
- Topic: Recommended Videos
- Replies: 3
- Views: 187
Re: Recommended Videos
The organic chemistry tutor is great, as well as khan academy. With organic chemistry tutor put him on 2x because he speaks really slow.
- Fri Nov 20, 2020 8:35 pm
- Forum: Student Social/Study Group
- Topic: Study Tips for Final Exam
- Replies: 57
- Views: 3423
Re: Study Tips for Final Exam
Textbook problems are much harder than the actual tests, almost to the point where they cover material you don't need to know. But it is still good practice. I think the sapling problems are a great for referencing the styles of questions that will be on the exam but i feel like they sometimes skip ...
- Fri Nov 20, 2020 8:33 pm
- Forum: Student Social/Study Group
- Topic: post midterm 2
- Replies: 27
- Views: 1397
Re: post midterm 2
Personally I thought midterm 1 was a little too easy and this midterm, although pretty straight forward, had a couple of trickier questions that could really mess you up if you didn't pay attention to the details.
- Fri Nov 20, 2020 8:27 pm
- Forum: Student Social/Study Group
- Topic: grade worries
- Replies: 119
- Views: 25097
Re: grade worries
does anyone know if we will be able to review over the questions in midterm 1
- Sun Nov 15, 2020 10:31 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Midterm 2
- Replies: 23
- Views: 1068
Re: Midterm 2
so if it is up to TA's ds will it kick us out after 56? or are we just responsible for submitting when the TA says the time is up?
- Sun Nov 15, 2020 10:28 pm
- Forum: Resonance Structures
- Topic: Sapling #4
- Replies: 6
- Views: 459
Re: Sapling #4
1) the easiest is to just keep everything the same (bond wise) and just rotate locations of bonds
2) move bonds around( can you make a bond from 2 lone e- ? and vise versa?)
2) move bonds around( can you make a bond from 2 lone e- ? and vise versa?)
- Sun Nov 15, 2020 10:25 pm
- Forum: Bond Lengths & Energies
- Topic: Valence electrons of nitrogen
- Replies: 10
- Views: 475
Re: Valence electrons of nitrogen
^^^ what they said makes sense... so the best form for nitrogen would be to have 3 bonds and 2 lone electrons
- Sun Nov 15, 2020 10:22 pm
- Forum: Ionic & Covalent Bonds
- Topic: Ionic radius
- Replies: 18
- Views: 956
Re: Ionic radius
I think as the ion becomes more negative the ionic radius increases because it is repelling the + charged nucleus more.... that's just my hypothesis. Not 100% sure.
- Sun Nov 15, 2020 10:18 pm
- Forum: Student Social/Study Group
- Topic: Midterm 2 content
- Replies: 20
- Views: 1060
Re: Midterm 2 content
I feel like this unit is more about structures... but I could be wrong.
- Sun Nov 08, 2020 9:22 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Chem 14BL?
- Replies: 7
- Views: 419
Re: Chem 14BL?
How do virtual labs work? just curious...
Are they like videos and worksheets? or lab reports on given data?
Are they like videos and worksheets? or lab reports on given data?
- Sun Nov 08, 2020 9:19 pm
- Forum: Student Social/Study Group
- Topic: Midterm 2
- Replies: 28
- Views: 1300
Re: Midterm 2
I would say run through textbook chapter, lecture, textbook problems, sapling, and step up in this order to reinforce concepts before and after lecture.
In my opinion the textbook problems were much harder than the midterm so it was great practice
In my opinion the textbook problems were much harder than the midterm so it was great practice
- Sun Nov 08, 2020 9:15 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Taking Bio and Chem simultaneously
- Replies: 26
- Views: 2647
Re: Taking Bio and Chem simultaneously
I'm doing both right now too. Honestly the concepts aren't that difficult, it just takes more time. It's not to difficult to take both. just don't sike yourself out and manage your time properly.
- Sun Nov 08, 2020 9:12 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Midterm 2 Question Count
- Replies: 17
- Views: 737
Re: Midterm 2 Question Count
Did everyone get a different midterm? because, honestly, I feel like the first one was already fairly short.... i know people were talking about the first one having multiple parts but mine was all multiple choice and it didn't seem as if any of the questions related to one another.
- Sun Nov 01, 2020 10:02 pm
- Forum: Heisenberg Indeterminacy (Uncertainty) Equation
- Topic: Uncertainty percentage
- Replies: 5
- Views: 390
Re: Uncertainty percentage
Honestly i have no clue either
- Sun Nov 01, 2020 10:01 pm
- Forum: Properties of Light
- Topic: How to remember what v is in equations
- Replies: 46
- Views: 7646
Re: How to remember what v is in equations
one v will be cursive and another will not
- Sun Nov 01, 2020 9:58 pm
- Forum: Heisenberg Indeterminacy (Uncertainty) Equation
- Topic: Uncertainty percentage
- Replies: 5
- Views: 390
Re: Uncertainty percentage
I don't remember that but if its a percent then it would be the percent of the number given
so +/- of 9.8
so +/- of 9.8
- Sun Nov 01, 2020 9:56 pm
- Forum: Accuracy, Precision, Mole, Other Definitions
- Topic: Avogadro constant
- Replies: 40
- Views: 2720
Re: Avogadro constant
Avogadro converts moles to "things" which is literally anything that isn't already defined: atomps, particles, ect
- Wed Oct 28, 2020 8:55 am
- Forum: Administrative Questions and Class Announcements
- Topic: Participation Points [ENDORSED]
- Replies: 62
- Views: 4568
Re: Participation Points [ENDORSED]
I'm sorry but where on our name are we supposed to click? I keep clicking on my name under the post and it just highlights text
- Tue Oct 27, 2020 1:36 pm
- Forum: Heisenberg Indeterminacy (Uncertainty) Equation
- Topic: Textbook Problem 1B27
- Replies: 6
- Views: 455
Textbook Problem 1B27
1B.27 A bowling ball of mass 8.00 kg is rolled down a bowling alley lane at
5.00±5.0m⋅s−1. What is the minimum uncertainty in its position?
Could someone explain why we don't convert 8.00kg to grams in this problem
Thank you!
5.00±5.0m⋅s−1. What is the minimum uncertainty in its position?
Could someone explain why we don't convert 8.00kg to grams in this problem
Thank you!
- Tue Oct 27, 2020 10:46 am
- Forum: Properties of Light
- Topic: Wavelength
- Replies: 26
- Views: 1391
Re: Wavelength
Okay, thanks!
Is there a specific reason why we use kg for De Broglie's equation?
Is there a specific reason why we use kg for De Broglie's equation?
- Tue Oct 27, 2020 10:21 am
- Forum: Properties of Light
- Topic: Wavelength
- Replies: 26
- Views: 1391
Wavelength
Is wavelength always converted into m or are there any instance where wavelength must be in nm?
- Tue Oct 27, 2020 8:02 am
- Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
- Topic: Textbook problem Quantum World 1A 15
- Replies: 2
- Views: 114
Textbook problem Quantum World 1A 15
For this equation it asks for the n's when given 102.6 I know that ni(initial) is one. lol, so i really need help with this problem. I keep doing it and i'm doing all the steps people are telling me but I keep getting the wrong answer. I used this equation to get energy E=hc/λ which is 1.937x10^-18 ...
- Sun Oct 25, 2020 7:04 pm
- Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
- Topic: Textbook problem 1A.15
- Replies: 3
- Views: 217
Re: Textbook problem 1A.15
I also had problem with the question. You would also need to use rydberg's equation
also keep in mind that it is UV which gives a hint as to what the initial orbital is
also keep in mind that it is UV which gives a hint as to what the initial orbital is
- Sun Oct 25, 2020 7:01 pm
- Forum: Administrative Questions and Class Announcements
- Topic: midterm 1
- Replies: 3
- Views: 203
Re: midterm 1
some TA were saying around ten then other were saying 30.. i honestly have no clue. I would also love to know how much time we have
- Sun Oct 25, 2020 6:58 pm
- Forum: Student Social/Study Group
- Topic: Midterm Prep
- Replies: 15
- Views: 719
Re: Midterm Prep
do yall know how long we have?
- Sun Oct 25, 2020 6:56 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Midterm scratch work
- Replies: 8
- Views: 517
Re: Midterm scratch work
hey sorry but are we supposed to have computer sound/mic on bc the feedback kinda annoys me?
- Sun Oct 25, 2020 6:54 pm
- Forum: Properties of Electrons
- Topic: Textbook problem Quantum World 1A 15
- Replies: 3
- Views: 234
Re: Textbook problem Quantum World 1A 15
Yes, I did that but i am still not getting the right answer..... lowkey so confused
- Sat Oct 24, 2020 6:13 pm
- Forum: Properties of Electrons
- Topic: Textbook problem Quantum World 1A 15
- Replies: 3
- Views: 234
Textbook problem Quantum World 1A 15
Problem: 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. So i solved for energy and got: 1.93x10^18 and then I plugged my ...
- Sun Oct 11, 2020 6:43 pm
- Forum: Empirical & Molecular Formulas
- Topic: Sapling Question #10
- Replies: 3
- Views: 199
Re: Sapling Question #10
You should be able to find molar mass using the given info
X ml C4H8O*(xgrams/ml)=x grams of C4H8O
The masses on each side of the equation should be equal so if you subtract you can find the molar mass of the others.
X ml C4H8O*(xgrams/ml)=x grams of C4H8O
The masses on each side of the equation should be equal so if you subtract you can find the molar mass of the others.
- Sun Oct 11, 2020 6:36 pm
- Forum: SI Units, Unit Conversions
- Topic: Sampling
- Replies: 9
- Views: 470
Re: Sampling
I don't believe your marked down. I think the HW competition, but you won't get the credit until all answers are correct
- Sun Oct 11, 2020 6:34 pm
- Forum: SI Units, Unit Conversions
- Topic: Avogadro's Constant
- Replies: 12
- Views: 778
Re: Avogadro's Constant
The previous response is correct. Avogadro's constant is literally a conversion for "things"... so literally, anything that hasn't already been defined.. hahaha ik its very vague but its a great constant to use if you're trying to convert from a measurement you've never used before
- Sun Oct 11, 2020 6:19 pm
- Forum: Molarity, Solutions, Dilutions
- Topic: Sapling HW #6
- Replies: 8
- Views: 418
Re: Sapling HW #6
If you add the masses you should get 125.55 g. Then you should be able to find the mol. With the mol, you can set up a proportion to find ml:
(mol1)(ml1)=(mol2)(ml2)
(mol1)(ml1)=(mol2)(ml2)
- Sun Oct 11, 2020 3:21 pm
- Forum: Empirical & Molecular Formulas
- Topic: Sapling Week 1 #8
- Replies: 3
- Views: 210
Re: Sapling Week 1 #8
jasmineculilap_2J wrote:Make sure you're using capital letters. I had that problem too, but you just need capitals.
Awesome! Thank you so much!
- Sun Oct 11, 2020 3:16 pm
- Forum: Empirical & Molecular Formulas
- Topic: Sapling Week 1 #8
- Replies: 3
- Views: 210
Sapling Week 1 #8
I'm trying to type in the molecular formula for the first part, for example:
C6H8O6, but its not letting me type in letters. Is anyone else having this problem?
C6H8O6, but its not letting me type in letters. Is anyone else having this problem?