Search found 51 matches
- Sun Dec 05, 2021 11:10 pm
- Forum: Lewis Structures
- Topic: Lewis Structure vs Molecular Geometry
- Replies: 11
- Views: 2222
Re: Lewis Structure vs Molecular Geometry
Hi! Lewis structures are 2D and molecular geometry is 3D
- Sun Dec 05, 2021 11:09 pm
- Forum: Wave Functions and s-, p-, d-, f- Orbitals
- Topic: How many orbitals are in a subshell
- Replies: 33
- Views: 6959
Re: How many orbitals are in a subshell
Hi! s: 1 orbital
p: 3 orbitals
d: 5 orbitals
f: 7 orbitals
p: 3 orbitals
d: 5 orbitals
f: 7 orbitals
- Sun Dec 05, 2021 11:08 pm
- Forum: Properties of Light
- Topic: Final
- Replies: 35
- Views: 1690
Re: Final
The final is cummalative!
- Sun Dec 05, 2021 11:06 pm
- Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
- Topic: How to use equation
- Replies: 3
- Views: 411
Re: How to use equation
The equation is called rydberg equation
- Sun Dec 05, 2021 11:03 pm
- Forum: Empirical & Molecular Formulas
- Topic: Empirical Formula
- Replies: 21
- Views: 1282
Re: Empirical Formula
Hi! You should only assume 100g if you are not given the exact molar mass
- Sun Dec 05, 2021 11:02 pm
- Forum: Balancing Chemical Reactions
- Topic: pH
- Replies: 5
- Views: 551
Re: pH
Hi! In order to calculate the pHs you first ned to identify whether its a strong base or acid
- Sun Dec 05, 2021 11:00 pm
- Forum: Limiting Reactant Calculations
- Topic: Percent Yield and How to Find it
- Replies: 7
- Views: 2828
Re: Percent Yield and How to Find it
hi! percentage yield = (actual yield/theoretical yield) x 100
- Sun Dec 05, 2021 10:59 pm
- Forum: Accuracy, Precision, Mole, Other Definitions
- Topic: Molecules vs Formula Units
- Replies: 10
- Views: 771
Re: Molecules vs Formula Units
Hi! molecules=molecular formula and the formula units=empirical formula
- Sun Dec 05, 2021 10:57 pm
- Forum: Significant Figures
- Topic: calculations
- Replies: 9
- Views: 673
Re: calculations
Hey! Its best to round after calculations in order to get the most accurate result
- Sun Dec 05, 2021 10:54 pm
- Forum: Significant Figures
- Topic: how do they work
- Replies: 8
- Views: 584
Re: how do they work
2000 has 1 sig fig 2000.00 has 6
- Sun Dec 05, 2021 10:53 pm
- Forum: SI Units, Unit Conversions
- Topic: ways to remember sigfigs
- Replies: 15
- Views: 2117
Re: ways to remember sigfigs
Ellen Tsai 3D wrote:I like to use the Atlantic and pacific method which ill attach
This helped me out in my final today Thank you so much!
- Sun Dec 05, 2021 10:52 pm
- Forum: SI Units, Unit Conversions
- Topic: Temperature Scales
- Replies: 6
- Views: 429
Re: Temperature Scales
Celcius ! I believe so because Fahrenheit isn't used often
- Sun Dec 05, 2021 10:51 pm
- Forum: SI Units, Unit Conversions
- Topic: Converting m to nm
- Replies: 37
- Views: 4576
Re: Converting m to nm
Hi! You need to multiply by 1 x 10^9 in order to cancel out the m and get nm
- Sun Dec 05, 2021 10:50 pm
- Forum: SI Units, Unit Conversions
- Topic: Miles to meters
- Replies: 6
- Views: 487
Re: Miles to meters
1 mile = 1609.34 meters
- Sun Dec 05, 2021 10:47 pm
- Forum: Properties of Light
- Topic: energy and frequency
- Replies: 5
- Views: 425
Re: energy and frequency
Hi! high frequency=more energy
- Sun Nov 14, 2021 11:41 pm
- Forum: Properties of Light
- Topic: Midterm 2
- Replies: 16
- Views: 552
Re: Midterm 2
Hello, from reading the previous responses I can make out that there is partial scoring. But, no unfortunately there is no curve
- Sun Nov 14, 2021 11:40 pm
- Forum: Properties of Light
- Topic: Final
- Replies: 35
- Views: 1690
Re: Final
The final will be cumulative.
- Sun Nov 14, 2021 11:38 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: Do you have to specify Dipole Dipole if H bonds alr present
- Replies: 5
- Views: 309
Re: Do you have to specify Dipole Dipole if H bonds alr present
Hello, my TA had mentioned that they should always be specified
- Sun Nov 14, 2021 11:37 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: boiling point
- Replies: 28
- Views: 4463
Re: boiling point
hello! the stronger the force= the higher the melting point! Hope this helps
- Sun Nov 14, 2021 11:36 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: Midterm 2 Question
- Replies: 22
- Views: 1384
Re: Midterm 2 Question
stronger bond=stronger melting point
- Sun Nov 07, 2021 11:21 pm
- Forum: Ionic & Covalent Bonds
- Topic: Achieve HW Q10
- Replies: 7
- Views: 305
Re: Achieve HW Q10
Hello! The reasoning why is because they are farther away on periodic table (:
- Sun Nov 07, 2021 11:17 pm
- Forum: Naming
- Topic: Memorizing names of compounds
- Replies: 8
- Views: 479
Re: Memorizing names of compounds
Hello, we are not expected to memorize names of compounds.
- Sun Nov 07, 2021 11:16 pm
- Forum: Limiting Reactant Calculations
- Topic: best method
- Replies: 6
- Views: 498
Re: best method
Hi!
Here's the easiest way I found to findinf the limiting reagents:
- convert reactants into moles
-divide by coefficient
-reactant w small # is limiting
Here's the easiest way I found to findinf the limiting reagents:
- convert reactants into moles
-divide by coefficient
-reactant w small # is limiting
- Sun Nov 07, 2021 11:13 pm
- Forum: Wave Functions and s-, p-, d-, f- Orbitals
- Topic: Achieve #16
- Replies: 8
- Views: 510
Re: Achieve #16
Helllo! In order to see if compatible, it must start above the red line & end at the red line.
- Sun Nov 07, 2021 11:10 pm
- Forum: Administrative Questions and Class Announcements
- Topic: 14B Enrollment [ENDORSED]
- Replies: 67
- Views: 20189
Re: 14B Enrollment [ENDORSED]
Hi! I believe summer school is a good option,but since it is only 6 weeks I'd recommend doing it throughout the school year (:
- Sun Oct 31, 2021 9:05 pm
- Forum: Properties of Light
- Topic: Submitting the homework a day late?
- Replies: 13
- Views: 906
Re: Submitting the homework a day late?
Hello! From what I'm aware of there isn't a drastic penalty when submitting late I believe its only a couple of points.
- Sun Oct 31, 2021 8:51 pm
- Forum: Properties of Light
- Topic: Units
- Replies: 13
- Views: 569
Re: Units
hello, I was having similar problems when converting, its easiest to convert when initially starting your problem so you don't get slight conversion mistakes
- Sun Oct 31, 2021 8:41 pm
- Forum: Properties of Light
- Topic: Midterm result
- Replies: 6
- Views: 325
Re: Midterm result
Midterm results have been posted, the class average was above an 80
- Sun Oct 31, 2021 8:40 pm
- Forum: Properties of Light
- Topic: How to draw on Achieve on laptop
- Replies: 6
- Views: 316
Re: How to draw on Achieve on laptop
hey, you could get examples on how to draw structures on week 1 achieve homework
- Sun Oct 31, 2021 8:33 pm
- Forum: Properties of Light
- Topic: Achieve not loading
- Replies: 5
- Views: 261
Re: Achieve not loading
Hey! I've had similar issues and it was resolved when logging in through chrome
- Sun Oct 24, 2021 10:52 pm
- Forum: Einstein Equation
- Topic: Achieve 2 #12
- Replies: 4
- Views: 468
Re: Achieve 2 #12
Hi! For part B its just unit conversion!(:
- Sun Oct 24, 2021 10:51 pm
- Forum: *Shrodinger Equation
- Topic: How to use on test
- Replies: 3
- Views: 433
Re: How to use on test
Hi! We only need to know the concept (:
- Sun Oct 24, 2021 10:50 pm
- Forum: DeBroglie Equation
- Topic: HW - #14
- Replies: 6
- Views: 390
Re: HW - #14
Hi! I also have the same set up & was wondering the same thing /:
- Sun Oct 24, 2021 10:46 pm
- Forum: Wave Functions and s-, p-, d-, f- Orbitals
- Topic: Midterm Scores
- Replies: 16
- Views: 654
Re: Midterm Scores
Hi! He recently emailed that the scores will be out in the next couple of days!
- Sun Oct 24, 2021 10:42 pm
- Forum: DeBroglie Equation
- Topic: Achieve #13
- Replies: 5
- Views: 580
Re: Achieve #13
Hi!
The equation I used 6.62x10^-34 x (3x10^8)/ lambda ! hope this helps!
The equation I used 6.62x10^-34 x (3x10^8)/ lambda ! hope this helps!
- Sun Oct 17, 2021 11:29 pm
- Forum: General Science Questions
- Topic: Rusty on High School Chem [ENDORSED]
- Replies: 347
- Views: 500244
Re: Rusty on High School Chem [ENDORSED]
As someone who also hasn't taken chemistry since Junior year in high school, I believe the amount of resources and very well explained lectures helped me calm my nerves down in this class. Something that has also helped me is quizlet exams I constructed on topic definitions!
- Sun Oct 17, 2021 11:26 pm
- Forum: Administrative Questions and Class Announcements
- Topic: How to find my posts
- Replies: 163
- Views: 185792
Re: How to find my posts
By clicking quick links on the left hand side, you'll see a button named your posts (:
- Sun Oct 17, 2021 11:23 pm
- Forum: Administrative Questions and Class Announcements
- Topic: How to list Chem_Mod posts
- Replies: 25
- Views: 95083
Re: How to list Chem_Mod posts
Aliya Roserie 3I wrote:Does anyone know how to post a question?
Hi! To post a question you go on the quick link tabs on the left hand side, click your posts and it states post a question hope this helps !
- Sun Oct 17, 2021 11:21 pm
- Forum: Student Social/Study Group
- Topic: Final Jitters
- Replies: 457
- Views: 489190
Re: Final Jitters
Rereading the suggestions and positive affirmations under this post really helped me with my nervousness for our midterm on Friday thank you !
- Sun Oct 17, 2021 11:18 pm
- Forum: Student Social/Study Group
- Topic: Culinary Chemistry
- Replies: 239
- Views: 47267
Re: Culinary Chemistry
Ceviche has also always been one of those dishes that fascinates me because of the chemistry behind it! I always found ceviche to be an interesting dish! It's essentially letting raw shrimp marinate in an acidic base (oxymoron haha) mainly composed of lemon or lime juice. The citric acid causes the ...
- Sun Oct 10, 2021 8:31 pm
- Forum: Limiting Reactant Calculations
- Topic: Achieve Homework 1 - #10
- Replies: 5
- Views: 288
Re: Achieve Homework 1 - #10
From my understanding the chemical formulas will be provided for you
- Sun Oct 10, 2021 8:25 pm
- Forum: Empirical & Molecular Formulas
- Topic: Midterm
- Replies: 66
- Views: 2721
Re: Midterm
Hi! From advice I've heard from peers who have taken this course, they recommended doing both textbook problems and making flashcards with important topics. Hope this helps!
- Sun Oct 10, 2021 8:23 pm
- Forum: SI Units, Unit Conversions
- Topic: Achieve Due Dates [ENDORSED]
- Replies: 37
- Views: 2147
Re: Achieve Due Dates [ENDORSED]
Hi! Achieve due dates aren't set for specific date, but they are due on Sundays at 11:59pm (no specific Sunday dates). I believe that they will be due after every unit.
- Sun Oct 10, 2021 8:18 pm
- Forum: SI Units, Unit Conversions
- Topic: What units do we use?
- Replies: 14
- Views: 1352
Re: What units do we use?
Hi! You will know what specific units you'll have to use based on what the question is asking!
- Sun Oct 10, 2021 8:15 pm
- Forum: Significant Figures
- Topic: Significant Figures [ENDORSED]
- Replies: 9
- Views: 416
Re: Significant Figures [ENDORSED]
Hi! Any number after the decimal is considered a Significant figure
- Sun Oct 10, 2021 8:14 pm
- Forum: Significant Figures
- Topic: Significant Figures [ENDORSED]
- Replies: 9
- Views: 416
Re: Significant Figures [ENDORSED]
Hi! Any number after the decimal is considered a Significant figure
- Sun Oct 03, 2021 8:14 am
- Forum: Empirical & Molecular Formulas
- Topic: What to do when you aren't given the molecular formula
- Replies: 6
- Views: 365
Re: What to do when you aren't given the molecular formula
Hello, I believe Lavelle stated that in the meantime the molecular formulas will be given to us, so no need to look it up at the moment :)
- Sun Oct 03, 2021 8:12 am
- Forum: Administrative Questions and Class Announcements
- Topic: Fall 2021 Discussion 1B, Week 1
- Replies: 5
- Views: 260
Re: Fall 2021 Discussion 1B, Week 1
We must post or reply on Chemistry Community 5x per week (:
- Sun Oct 03, 2021 8:10 am
- Forum: Properties of Light
- Topic: Audio Visual Focus Topics
- Replies: 8
- Views: 366
Re: Audio Visual Focus Topics
I believe we should watch the AVFT before the end of week 2. Though these aren't graded assignments, they are a great resource for when we start learning about Quantum.
- Sun Oct 03, 2021 8:07 am
- Forum: SI Units, Unit Conversions
- Topic: Discussion Turn In Questions
- Replies: 10
- Views: 439
Re: Discussion Turn In Questions
Hi,
I do not think we have to turn those questions in. My TA mentioned it being resources not an actual assignment.
I do not think we have to turn those questions in. My TA mentioned it being resources not an actual assignment.
- Sun Oct 03, 2021 8:05 am
- Forum: SI Units, Unit Conversions
- Topic: Achieve Log In
- Replies: 3
- Views: 263
Achieve Log In
Hello, I was wondering if any of you had issues when logging into achieve? I am familiar with the site and have read the instructions posted to the site, yet my achieve tab does not open. The site mentions it opening on another tab or site but no tab or site pops up. I've tried using other computers...