Search found 57 matches
- Tue Dec 15, 2020 2:02 pm
- Forum: Student Social/Study Group
- Topic: Final Exam
- Replies: 49
- Views: 2799
Re: Final Exam
I felt a little rushed at the end, but I think I did all I could have done.
- Sat Dec 12, 2020 8:41 pm
- Forum: Naming
- Topic: Textbook Question 9C.1
- Replies: 5
- Views: 506
Re: Textbook Question 9C.1
I'm assuming you meant [Co(CN)5(OH2)]2-. For that, the name would be Aquapentacyanocobaltate (III) Aqua comes first alphabetically. Then cyano and we have to add penta- because there are 5. After that, we add the transition metal name and add -ate because the complex is negative. Add the charge of t...
- Sat Dec 12, 2020 8:31 pm
- Forum: Identifying Acidic & Basic Salts
- Topic: Spectator ions
- Replies: 2
- Views: 288
Re: Spectator ions
There are quite a few so I just remember them as the conjugates of strong acids and bases!
- Sat Dec 12, 2020 8:29 pm
- Forum: Polarisability of Anions, The Polarizing Power of Cations
- Topic: Prioritizing Polarizing Power of Polarizabilty
- Replies: 3
- Views: 300
Re: Prioritizing Polarizing Power of Polarizabilty
I agree just try to look at electronegativity. The larger the difference the more ionic the character of the bond.
- Sat Dec 12, 2020 8:26 pm
- Forum: Student Social/Study Group
- Topic: Last Minute Breather
- Replies: 12
- Views: 645
Re: Last Minute Breather
I'm tired. Very tired :/
- Sat Dec 12, 2020 8:25 pm
- Forum: Student Social/Study Group
- Topic: Study music
- Replies: 59
- Views: 6805
Re: Study music
I play lo-fi music or instrumental music because it doesn't have words.
- Sun Dec 06, 2020 3:44 pm
- Forum: Naming
- Topic: Helpful Videos for Naming
- Replies: 22
- Views: 1190
Re: Helpful Videos for Naming
Thank you so much! I have been looking for some to watch!!
- Sun Dec 06, 2020 3:39 pm
- Forum: Student Social/Study Group
- Topic: Practice Exams
- Replies: 3
- Views: 204
Re: Practice Exams
I'm not sure of any practice exams, however, I do remember Dr.Lavelle mentioning in an email that he would be going through previous years exam Q&A on wednesday. I imagine this would be super helpful!
- Sun Dec 06, 2020 3:35 pm
- Forum: Student Social/Study Group
- Topic: Studying for Final Exam
- Replies: 57
- Views: 2902
Re: Studying for Final Exam
All of these tips seem really helpful. I will slowly but surely do all the textbook problems that I can and write summaries of the units we have gone through! My main strategy is just practice, practice, practice!!
- Sun Dec 06, 2020 3:33 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Partial Credit on the Final
- Replies: 6
- Views: 380
Re: Partial Credit on the Final
Probably just a very limited amount of questions will offer partial credit.
- Sun Dec 06, 2020 3:32 pm
- Forum: Student Social/Study Group
- Topic: How are you?
- Replies: 154
- Views: 15243
Re: How are you?
I'm ok, just tired. Definitely ready for break!
- Thu Nov 26, 2020 1:38 pm
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: Homework question Sapling
- Replies: 6
- Views: 364
Re: Homework question Sapling
Lone pairs do not cancel out. Rather they play a larger role in repelling atoms around/near it.
- Thu Nov 26, 2020 1:35 pm
- Forum: Student Social/Study Group
- Topic: Finals!
- Replies: 43
- Views: 2084
Re: Finals!
Will there be an emphasis on the new material though?
- Thu Nov 26, 2020 1:30 pm
- Forum: General Science Questions
- Topic: Finals
- Replies: 39
- Views: 2460
Re: Finals
Renny_kim_2G wrote:Does anyone know if we get partial credits for questions on the finals?
I'm guessing that we can just because we were able to on the first one. But it would probably just be for a limited number of questions.
- Thu Nov 26, 2020 1:11 pm
- Forum: General Science Questions
- Topic: Grade Breakdown
- Replies: 35
- Views: 2433
Re: Grade Breakdown
Renny_kim_2G wrote:Does anyone know the minimum points we can lose to maintain an A or A-? Or is he curving the grades later?
I don't think I heard anything about curves, but who knows! As for the grading scale I think it is as mentioned above.
- Thu Nov 26, 2020 1:06 pm
- Forum: Student Social/Study Group
- Topic: Big Sad: Midterm 2
- Replies: 86
- Views: 6841
Re: Big Sad: Midterm 2
I ended up doing worse on this midterm but I guess I just gotta make up for it on the final :/. I'll take it as a learning curve. We all got this, just got to push through!!!
- Sat Nov 21, 2020 4:39 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Which shapes to memorize
- Replies: 11
- Views: 816
Re: Which shapes to memorize
Inderpal Singh 3B wrote:Would we have to memorize the bond angles as well?
I don't think we would have to memorize bond angles for each one but you should know the general idea about how each shape looks and be able to deduce from there what the values of the angles are around (for example 90 vs less than 90 degrees).
- Sat Nov 21, 2020 4:35 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Lone Pair E-
- Replies: 47
- Views: 2137
Re: Lone Pair E-
Yes, lone pairs are considered their own regions and they repel other regions strongly too. That is why when looking at the shape of molecules we have to consider lone pairs (because they repel the other bonds).
- Sat Nov 21, 2020 4:32 pm
- Forum: Student Social/Study Group
- Topic: Study Tips for Final Exam
- Replies: 57
- Views: 2997
Re: Study Tips for Final Exam
I will most likely go through old problems I had trouble with and try to redo them all. This way I get to revisit all the old topics. I have also been making consolidated lists of midterm material throughout the quarter, so I will probably create one for the new material and study the lists collecti...
- Sat Nov 21, 2020 4:28 pm
- Forum: Electronegativity
- Topic: Trick for remembering periodic trends
- Replies: 11
- Views: 3517
Re: Trick for remembering periodic trends
This was actually pretty helpful! I personally like remembering which trends are the same and why they go that way. From there I deduce the other trends I may need to know.
- Sat Nov 21, 2020 4:26 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Stable Structures
- Replies: 10
- Views: 505
Re: Stable Structures
Yes you must otherwise you may get a completely different shape then what is right.
- Sat Nov 21, 2020 4:25 pm
- Forum: Student Social/Study Group
- Topic: Post Midterm Blues
- Replies: 71
- Views: 3860
Re: Post Midterm Blues
I also felt somewhat disappointed after the midterm. Hopefully, this is just a case of me underestimating myself. Thank you for the song by the way. Much needed and appreciated.
- Sun Nov 15, 2020 10:12 am
- Forum: Bond Lengths & Energies
- Topic: Bond Length & Strength Comparison
- Replies: 3
- Views: 179
Re: Bond Length & Strength Comparison
When you have this, I believe you use the radius of the atoms to see which one has a stronger bond. Since F has a smaller radius than Cl it will have a shorter bond and therefore be slightly stronger.
- Sun Nov 15, 2020 10:10 am
- Forum: Student Social/Study Group
- Topic: grade worries
- Replies: 119
- Views: 20944
Re: grade worries
Instead of spending the time stressing about my grade (which I do my fair share of) and I like to spend that energy on working to improve it. This is a habit I am trying to change for myself. I think that if you spend time to know the material and really understand it, the grade will hopefully come ...
- Sun Nov 15, 2020 10:07 am
- Forum: Student Social/Study Group
- Topic: Exercising Our Minds and Bodies
- Replies: 120
- Views: 21894
Re: Exercising Our Minds and Bodies
I like to go biking or on short walks around my neighborhood. It is a great way to get some air and take a break.
- Sun Nov 15, 2020 10:05 am
- Forum: Lewis Structures
- Topic: How to utilize formal charge
- Replies: 2
- Views: 193
Re: How to utilize formal charge
You should use formal charges to check if what you are drawing is the most stable it can be. You want to prioritize formal charges of 0 as that is the most favorable. You also want to make sure that if there is a formal charge for example of -2 total, that it is spread across the structure evenly. F...
- Sun Nov 15, 2020 9:59 am
- Forum: Trends in The Periodic Table
- Topic: Trends on the Period Table
- Replies: 8
- Views: 586
Re: Trends on the Period Table
I just remember the largest radius as the corner opposite to electronegativity (diagonally across)! That way I don't have to memorize too much.
- Sun Nov 15, 2020 9:57 am
- Forum: Administrative Questions and Class Announcements
- Topic: Midterm 2 Question
- Replies: 12
- Views: 712
Re: Midterm 2 Question
To add on, most likely your second device will just be your phone which will be pointed towards your desk during the midterm.
- Sun Nov 08, 2020 7:07 pm
- Forum: Student Social/Study Group
- Topic: Chemistry Among Us
- Replies: 43
- Views: 2448
Re: Chemistry Among Us
If there are enough people I would follow green. If there are not enough people I would shut off the reactor because if the reactor time runs out the game ends!
- Sun Nov 08, 2020 10:27 am
- Forum: Trends in The Periodic Table
- Topic: Ionization Energy
- Replies: 7
- Views: 218
Re: Ionization Energy
A cation pulls in an electron much more and therefore it requires more energy for it to be removed. After the first ionization, the atom loses a negative charge and therefore it becomes positive making the nucleus stronger requiring more energy for the next removal.
- Sun Nov 08, 2020 10:19 am
- Forum: Administrative Questions and Class Announcements
- Topic: Is CCLE Down?
- Replies: 5
- Views: 128
Re: Is CCLE Down?
It's down for me too! I like to check "downforeveryoneorjustme.com" whenever this happens (i found this to be super helpful). Should be back up now though
- Sun Nov 08, 2020 10:17 am
- Forum: Student Social/Study Group
- Topic: Studying From Home
- Replies: 91
- Views: 7426
Re: Studying From Home
One thing I do is definitely keep my phone away from me. It helps me focus and keeps away any distractions. I also like to prepare my workspace before I work there. By this I mean grab water, clean my desk, and etc. I definitely understand the struggle of working at home so I hope this helps!
- Sun Nov 08, 2020 10:12 am
- Forum: Trends in The Periodic Table
- Topic: Identifying Metals, Metalloids, and Nonmetals
- Replies: 2
- Views: 1498
Re: Identifying Metals, Metalloids, and Nonmetals
To add on, after you remember the stair-like pattern you don't have to memorize much more. So I suggest just knowing that (and hydrogen as an exception!).
- Sun Nov 08, 2020 10:09 am
- Forum: Administrative Questions and Class Announcements
- Topic: Chem 14B Enrollment
- Replies: 27
- Views: 1778
Re: Chem 14B Enrollment
I would suggest first pass unless your other classes are even more competitive to get into. It also depends on what classes you need versus just want.
- Sun Nov 01, 2020 6:18 pm
- Forum: Student Social/Study Group
- Topic: Halloween!!!
- Replies: 73
- Views: 3836
Re: Halloween!!!
I decorated a bunch of cupcakes for Halloween and took a well-deserved break after midterms!
- Sun Nov 01, 2020 6:01 pm
- Forum: DeBroglie Equation
- Topic: Avogadro's Number
- Replies: 21
- Views: 1696
Re: Avogadro's Number
It is used to describe the number of molecules or atoms per mole. If you have some amount of moles you can use Avogadro's number to convert.
- Sun Nov 01, 2020 5:55 pm
- Forum: Electron Configurations for Multi-Electron Atoms
- Topic: Radius
- Replies: 8
- Views: 353
Re: Radius
When you have more protons, the nucleus pulls on the electrons making it smaller despite possibly a larger amount of electrons. So the ion with the least protons will have the largest radius.
- Sun Nov 01, 2020 5:46 pm
- Forum: Student Social/Study Group
- Topic: Favorite TV shows
- Replies: 277
- Views: 43336
Re: Favorite TV shows
I definitely recommend the show Money Heist. I love crime/drama shows and this had the best of both worlds. I also recommend Hunter Hunter or Haikyuu if you want to watch anime!
- Sun Nov 01, 2020 5:41 pm
- Forum: DeBroglie Equation
- Topic: Sapling HW question 15
- Replies: 3
- Views: 180
Re: Sapling HW question 15
The process suggested seems correct. I just wanted to add that you should pay attention to your units to make sure you get the right value. So make sure to covert nm to m and make sure your mass is in kg!
- Sun Nov 01, 2020 5:39 pm
- Forum: Student Social/Study Group
- Topic: How to relax
- Replies: 168
- Views: 28811
Re: How to relax
I have started to learn to crochet and I usually do that while watching Netflix! I also love biking to relax.
- Fri Oct 23, 2020 11:58 am
- Forum: Administrative Questions and Class Announcements
- Topic: Schrodingers/Orbitals on Midterm?
- Replies: 2
- Views: 138
Re: Schrodingers/Orbitals on Midterm?
The basic shapes of the orbitals and schrodingers (which are covered in Wednesday's lecture) should be on the midterm, but no more than that. I would go with what he wrote in the email and just know the shapes of the orbitals/schrodingers. I don't think you need to worry at all about today's lecture.
- Fri Oct 23, 2020 11:48 am
- Forum: Quantum Numbers and The H-Atom
- Topic: Rydberg Constant
- Replies: 13
- Views: 589
Re: Rydberg Constant
Since they are in different units, you can just check your units to see which one to use. Most commonly the value in Hz is used.
- Fri Oct 23, 2020 11:37 am
- Forum: Heisenberg Indeterminacy (Uncertainty) Equation
- Topic: Outline question heisenberg indeterminancy
- Replies: 3
- Views: 172
Re: Outline question heisenberg indeterminancy
Don't worry, you are right! The uncertainty is the range (so you need to take into consideration that it can be from 0 to 10 m/s). I do not think "minimum" uncertainty means anything new for future references.
- Mon Oct 19, 2020 11:51 am
- Forum: Student Social/Study Group
- Topic: How are you studying?
- Replies: 204
- Views: 21819
Re: How are you studying?
For me, definitely staying organized is super important! It can be super overwhelming with several assignments especially if you don't know when they are due and how much time you need for it. I use my planner to help block out times during the day where I will focus on specific topics or assignment...
- Mon Oct 19, 2020 11:47 am
- Forum: Properties of Light
- Topic: Midterm
- Replies: 5
- Views: 238
Re: Midterm
I would print it out because then you don't have to spend time scrambling to find your PT during the midterm. Ensures that you have super easy access. I think Lavelle might provide a PT with equations that he may want us to print out later.
- Mon Oct 19, 2020 11:44 am
- Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
- Topic: Atomic Spectroscopy Post-Assessment Question
- Replies: 6
- Views: 279
Re: Atomic Spectroscopy Post-Assessment Question
Adding to the previous answers, once the molecule comes together it then has it's own unique wavelengths that it accepts. The different ratios of atoms in each molecule will accept different wavelengths even if the elements are the same. Hope this helps.
- Wed Oct 14, 2020 11:40 am
- Forum: Properties of Electrons
- Topic: Lyman vs. Balmer series
- Replies: 20
- Views: 1974
Re: Lyman vs. Balmer series
I think the Balmer series is in the visible region whereas the Lyman series is in the ultraviolet region. So one of the main differences is just where they are on the electromagnetic spectrum.
- Wed Oct 14, 2020 11:37 am
- Forum: Properties of Light
- Topic: Light as Wave or Particles?
- Replies: 2
- Views: 153
Re: Light as Wave or Particles?
Light acts as both a wave and individual particle at the same time! That's why there are many approaches when it comes to solving problems with light. They travel in waves, so collectively light can be understood as waves. That wave is made up of particles and that is why we can apply both conceptua...
- Mon Oct 12, 2020 11:13 am
- Forum: Photoelectric Effect
- Topic: Photon Energy in Photoelectric Experiment
- Replies: 6
- Views: 131
Re: Photon Energy in Photoelectric Experiment
I believe that the metal absorbs the light and the electrons become excited as if they are about to be emitted. It still takes in that energy it just doesn't end up being enough energy to break the free the electron.
- Mon Oct 12, 2020 11:04 am
- Forum: Properties of Light
- Topic: Quantized
- Replies: 11
- Views: 370
Re: Quantized
It does mean that it is focusing on the individual molecules and that is the difference between classical and quantum mechanics. With the water example, you can look at it through two viewpoints: a continuous flow falling out or individual molecules. When we say quantized we are looking at the secon...
- Mon Oct 12, 2020 10:54 am
- Forum: Properties of Light
- Topic: Wavelength/Frequency Conversion
- Replies: 4
- Views: 169
Re: Wavelength/Frequency Conversion
Make sure to convert your units! The best way to check is to cancel out the units that you can and make sure to include them in your work (instead of just manipulating the numbers). This way you will know what values you may need to convert and you can find any mistakes more easily.
- Fri Oct 09, 2020 10:53 am
- Forum: General Science Questions
- Topic: Taking Notes on Textbook Readings
- Replies: 13
- Views: 782
Re: Taking Notes on Textbook Readings
Hey! When I read through the textbook I added to my notes from the modules we watched previous to school starting. I found the textbook to be a good compliment to what I learned in the modules since they often discussed the same topics. For me, taking notes helps me retain information and I think it...
- Fri Oct 09, 2020 10:47 am
- Forum: SI Units, Unit Conversions
- Topic: Extensive property
- Replies: 4
- Views: 230
Re: Extensive property
Volume is an extensive property because it depends on how much you have and not what you have. Whether you have water or any other kind of solution the volume is something you need to measure out. With density, you can have varying volumes of a solution but still have the same density because it dep...
- Fri Oct 09, 2020 10:41 am
- Forum: Properties of Light
- Topic: Speed of Light in Equations
- Replies: 6
- Views: 129
Re: Speed of Light in Equations
It should be taking place in vacuum otherwise the constant c would not be true/correct.
- Mon Oct 05, 2020 11:22 am
- Forum: Molarity, Solutions, Dilutions
- Topic: Serial Dilutions
- Replies: 4
- Views: 440
Re: Serial Dilutions
You would just continue using the same equation by replacing the old M and V values with the new diluted ones. So to clarify your M2 and V2 in the first dilution calculation (of a serial dilution) would be the M1 and V1 of the second dilution calculation. The amount of moles "n" should rem...
- Mon Oct 05, 2020 11:12 am
- Forum: Molarity, Solutions, Dilutions
- Topic: Balancing Chemical Equations
- Replies: 12
- Views: 527
Re: Balancing Chemical Equations
If you don't have it in its simplest form it definitely makes your work more difficult because you will have to multiply or divide by much larger numbers. This may leave more room for error when doing your calculations so you should always simplify.
- Mon Oct 05, 2020 11:07 am
- Forum: Administrative Questions and Class Announcements
- Topic: Advice from a Medical Student [ENDORSED]
- Replies: 297
- Views: 425250
Re: Advice from a Medical Student [ENDORSED]
Hi! Thank you for this super helpful advice. I think even if I plan to go to vet school as apposed to med school, all of this information is so important. Thank you for taking the time to post this!