Search found 104 matches

by Simer_Shera_2D
Fri Feb 26, 2021 12:11 am
Forum: Administrative Questions and Class Announcements
Topic: Which percentage corresponds with which grade?
Replies: 8
Views: 61

Re: Which percentage corresponds with which grade?

In 14A with Lavelle, we followed the typical grading scale (89-92 A-, 93-96 A, 97+ A+) so I assume this course is the same.
by Simer_Shera_2D
Fri Feb 26, 2021 12:09 am
Forum: Administrative Questions and Class Announcements
Topic: Chem 14BL Enrollment
Replies: 7
Views: 41

Re: Chem 14BL Enrollment

I heard everyone is accepted off the waitlist! Also, I know that lots of people switch up their schedules in the first few days of the quarter so if you weren't able to get a spot, there is always a possibility that someone will drop in the months to come.
by Simer_Shera_2D
Fri Feb 26, 2021 12:06 am
Forum: Administrative Questions and Class Announcements
Topic: struggling
Replies: 73
Views: 254

Re: struggling

I strategy I found that really helps me is to struggle with the textbook problems for as long as I can before going to a solution manual. Usually, if I'm not able to solve the problem the first two or three tries, I leave it and return to it a couple hours or days later with a fresh mind so I can re...
by Simer_Shera_2D
Thu Feb 25, 2021 11:59 pm
Forum: Student Social/Study Group
Topic: Anxiety
Replies: 53
Views: 314

Re: Anxiety

I know this class can be pretty stressful given its strict grade scale and dense topics but just remember how far you've come! I've been reminding myself that it's almost the end of the quarter and that we have worked hard learning and interpreting the material presented to us, even in the remote fo...
by Simer_Shera_2D
Wed Feb 24, 2021 10:47 am
Forum: Administrative Questions and Class Announcements
Topic: Can We Review our Exams?
Replies: 69
Views: 245

Re: Can We Review our Exams?

I believe you can but you'd have to contact a TA and set up an appointment to dos.
by Simer_Shera_2D
Wed Feb 24, 2021 10:47 am
Forum: Administrative Questions and Class Announcements
Topic: Chemistry Community Deadlines
Replies: 7
Views: 33

Re: Chemistry Community Deadlines

The deadline is Sunday at the end of the corresponding week. That means last Sunday (three days ago) would have been counted for Week 7.
by Simer_Shera_2D
Sun Feb 21, 2021 11:05 pm
Forum: Administrative Questions and Class Announcements
Topic: Updating Lockdown Browser
Replies: 7
Views: 88

Re: Updating Lockdown Browser

For updates, I always make sure to open Lockdown at least two hours before a Lockdown exam just to make sure there aren't any updates pending. I don't think I've ever had to update but it's great to check just in case!
by Simer_Shera_2D
Sun Feb 21, 2021 10:58 pm
Forum: Administrative Questions and Class Announcements
Topic: Can We Review our Exams?
Replies: 69
Views: 245

Re: Can We Review our Exams?

You can review the midterm with any TA I believe!
by Simer_Shera_2D
Sun Feb 21, 2021 10:54 pm
Forum: Student Social/Study Group
Topic: Points needed to pass?
Replies: 54
Views: 198

Re: Points needed to pass?

I believe 50% is a passing score.
by Simer_Shera_2D
Sun Feb 21, 2021 10:53 pm
Forum: General Science Questions
Topic: MT 2 grades
Replies: 34
Views: 121

Re: MT 2 grades

I'm sure they'll be up sometime this week based on the trends from 14A and last midterm. Good luck!
by Simer_Shera_2D
Sun Feb 21, 2021 10:51 pm
Forum: Student Social/Study Group
Topic: Students Who Have a Job
Replies: 79
Views: 330

Re: Students Who Have a Job

I work 11 hours a week and honestly I agree sometimes its hard to juggle everything , especially during midterm season. Something I find very convenient is to have a planner so that you can map out your midterm and assignments weeks ahead of time using the syllabus. That way, you'll be able ot begin...
by Simer_Shera_2D
Sat Feb 13, 2021 4:55 pm
Forum: General Science Questions
Topic: Study Tips for midterm
Replies: 24
Views: 64

Re: Study Tips for midterm

I find the best practice to be completing the textbook problems and then reading the corresponding textbook chapter to make sure you've covered all the content. One thing I highly recommend is to really struggle any harder problems (even if that means revisiting them later) before resorting to the s...
by Simer_Shera_2D
Sat Feb 13, 2021 4:52 pm
Forum: Concepts & Calculations Using Second Law of Thermodynamics
Topic: Entropy: kJ or J?
Replies: 30
Views: 82

Re: Entropy: kJ or J?

In all the Sapling problems I've encountered, entropy is always in J while enthalpy is usually in kJ
by Simer_Shera_2D
Sat Feb 13, 2021 4:50 pm
Forum: Calculating Standard Reaction Entropies (e.g. , Using Standard Molar Entropies)
Topic: R constants
Replies: 40
Views: 880

Re: R constants

We use different R's depending on the units of whatever you're trying to calculate. It helps to write out a complete equation with units since you can see what cancels and which R is needed to complete the equation.
by Simer_Shera_2D
Sat Feb 13, 2021 4:49 pm
Forum: Calculating Work of Expansion
Topic: Positive vs. Negative Work
Replies: 22
Views: 57

Re: Positive vs. Negative Work

You're correct! Positive is when work is done to a system (adding internal energy) while negative is when energy is lost because the system is doing work on its surroundings.
by Simer_Shera_2D
Sat Feb 13, 2021 4:48 pm
Forum: Student Social/Study Group
Topic: Balance / Self Care Tips
Replies: 41
Views: 123

Re: Balance / Self Care Tips

Something that I found really works for me is preparing for exams in advance so that I don't have to spend more than 1-2 hours max on a subject a day. I find it hard to retain information when I study for very long periods of time so I usually start studying 2/3 weeks in advance (depending on the ma...
by Simer_Shera_2D
Sat Feb 13, 2021 4:45 pm
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: Adding 1 to Cv or Cp
Replies: 4
Views: 23

Re: Adding 1 to Cv or Cp

In the problems I've worked on, I've noticed that we add 1 when the gases are diatomic.
by Simer_Shera_2D
Sat Feb 06, 2021 11:00 pm
Forum: Administrative Questions and Class Announcements
Topic: Grading scale
Replies: 29
Views: 217

Re: Grading scale

For chemistry, a 93 and above is an A while a 97 and above is an A+ (same effect on GPA). A- is 90-92 and is no longer a 4.0 in GPA calculation.
by Simer_Shera_2D
Sat Feb 06, 2021 10:57 pm
Forum: Thermodynamic Systems (Open, Closed, Isolated)
Topic: Work
Replies: 39
Views: 106

Re: Work

A negative value for work implies the system does work on its surroundings!
by Simer_Shera_2D
Sat Feb 06, 2021 10:56 pm
Forum: Thermodynamic Systems (Open, Closed, Isolated)
Topic: R Constant
Replies: 89
Views: 243

Re: R Constant

There are several forms of R like others have said. I think for this unit, we use the same one (the one you mentioned) but I'd pay attention to the units when solving problems just to be sure.
by Simer_Shera_2D
Sat Feb 06, 2021 10:55 pm
Forum: Student Social/Study Group
Topic: Study tips for thermo
Replies: 14
Views: 60

Re: Study tips for thermo

I like to go through Sapling first after watching lectures and struggling through it so really get a solid understanding of what's going on. Thermo seems to have lots of equations and a broad set of concepts, so the longer sapling problems, although they take a long time, have been very helpful for ...
by Simer_Shera_2D
Sat Feb 06, 2021 10:53 pm
Forum: Administrative Questions and Class Announcements
Topic: 14bl virtual or in person
Replies: 13
Views: 92

Re: 14bl virtual or in person

I've heard some mixed opinions. I know that virtual seems to be convenient for many people since lectures are asynchronous (or pre-recorded?) and labs are online simulations but I also would love to have the in-person experience of a lab. I'm not sure which is better, but I guess it depends on what ...
by Simer_Shera_2D
Sun Jan 31, 2021 2:10 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: is HClO3 weak or strong? [ENDORSED]
Replies: 49
Views: 246

Re: is HClO3 weak or strong? [ENDORSED]

Yes! It is a strong acid.
by Simer_Shera_2D
Sun Jan 31, 2021 2:07 pm
Forum: Administrative Questions and Class Announcements
Topic: 14C?
Replies: 23
Views: 122

Re: 14C?

I'm planning on taking it in Fall just to finish the chem series by the beginning of sophomore year but I'm also not planning on doing BL until summer or maybe even sophomore year. It really depends on what's available by my pass time which is the last one (11:00pm) for both first and second appoint...
by Simer_Shera_2D
Fri Jan 29, 2021 10:24 pm
Forum: Student Social/Study Group
Topic: Spring 2021
Replies: 104
Views: 437

Re: Spring 2021

I'm not sure whether I'll take it in spring or not. I've heard some people take BL even late into their sophomore or junior year so I don't feel the rush to take it right away. I've also heard it's a lot of work so I'm debating on whether I'll be able to handle it next quarter or if it's better to w...
by Simer_Shera_2D
Fri Jan 29, 2021 10:20 pm
Forum: Administrative Questions and Class Announcements
Topic: Midterm Grades
Replies: 13
Views: 100

Re: Midterm Grades

Last quarter we got our grades about a week after the midterm so the midterms could be reviewed for any errors.
by Simer_Shera_2D
Fri Jan 29, 2021 10:18 pm
Forum: Administrative Questions and Class Announcements
Topic: Chem 14C Spring Quarter
Replies: 11
Views: 114

Re: Chem 14C Spring Quarter

I think Prof Lavelle only teaches A and B unfortunately. We'll have anothe professor for C.
by Simer_Shera_2D
Sun Jan 24, 2021 3:57 pm
Forum: Student Social/Study Group
Topic: Midterms During Lecture
Replies: 44
Views: 241

Re: Midterms During Lecture

He posted it under "Exam Schedule" on his website. I think he made the change because last quarter the discussion midterm timings were unfair to those who had Monday discussions versus those who had discussions later in the week like Friday. This gives everyone a more equal opportunity.
by Simer_Shera_2D
Sun Jan 24, 2021 3:55 pm
Forum: Phase Changes & Related Calculations
Topic: Thermochemistry on Midterm 1
Replies: 4
Views: 33

Re: Thermochemistry on Midterm 1

Professor Lavelle just sent out an email with more information on what was covered. We just barely touched Outline 3 so it's not too many sections.
by Simer_Shera_2D
Sun Jan 24, 2021 3:54 pm
Forum: Student Social/Study Group
Topic: Midterm
Replies: 21
Views: 101

Re: Midterm

Not sure how many questions and we probably won't know until the day of but Prof Lavelle is very generous with timing; I've never felt the need to rush on a midterm.
by Simer_Shera_2D
Sun Jan 24, 2021 3:53 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: pKa
Replies: 14
Views: 57

Re: pKa

p means -log so pKa = -logKa
by Simer_Shera_2D
Sun Jan 24, 2021 3:52 pm
Forum: Administrative Questions and Class Announcements
Topic: Midterm Timing
Replies: 15
Views: 52

Re: Midterm Timing

Prof Lavelle is definitely very mindful about the timing and number of questions. I never felt rushed in midterms, always had time to double check, and was able to leave early for both exams. The final was a little more stressful and I know a lot of people did not have the opportunity to finish but ...
by Simer_Shera_2D
Sun Jan 17, 2021 6:16 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Pure Liquids (Solutes)
Replies: 7
Views: 18

Re: Pure Liquids (Solutes)

Although we don't have to memorize anything, I would just pay attention to the states of matter indication in chemical equations when they are given, or if wording like "pure liquid" is used in a problem.
by Simer_Shera_2D
Sun Jan 17, 2021 6:12 pm
Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
Topic: endothermic vs exothermic
Replies: 16
Views: 59

Re: endothermic vs exothermic

Usually, there will be a delta H value included in the equation and if that value is negative, that means the reaction is exothermic. Endothermic will have a positive delta H.
by Simer_Shera_2D
Sun Jan 17, 2021 6:07 pm
Forum: Non-Equilibrium Conditions & The Reaction Quotient
Topic: Q > K, Q< K
Replies: 25
Views: 100

Re: Q > K, Q< K

When Q>K, that means that the amount of product is greater than should be at equilibrium so the reaction will shift towards the reactants. When Q<K, the amount of reactants is greater than it should be at equilibrium so the reaction will shift towards the products to reach equilibrium.
by Simer_Shera_2D
Thu Jan 14, 2021 10:54 pm
Forum: Administrative Questions and Class Announcements
Topic: Participation
Replies: 18
Views: 127

Re: Participation

For both!
by Simer_Shera_2D
Thu Jan 14, 2021 10:53 pm
Forum: Administrative Questions and Class Announcements
Topic: More Audio Visual Focus Topics
Replies: 8
Views: 46

Re: More Audio Visual Focus Topics

Unfortunately the audio visual topics are only available for equilibrium from what I heard.
by Simer_Shera_2D
Thu Jan 14, 2021 10:36 pm
Forum: Non-Equilibrium Conditions & The Reaction Quotient
Topic: H2O as a Gas
Replies: 69
Views: 454

Re: H2O as a Gas

Although we've typically seen it in its liquid form and do not use it, if H2O is present as a gas, then use it in the equilibrium calculation.
by Simer_Shera_2D
Sat Jan 09, 2021 4:23 pm
Forum: Ideal Gases
Topic: Units of Temperature
Replies: 82
Views: 354

Re: Units of Temperature

Temperature used in calculation must always be in Kelvin
by Simer_Shera_2D
Sat Jan 09, 2021 4:22 pm
Forum: Administrative Questions and Class Announcements
Topic: Chemistry Community Points
Replies: 13
Views: 77

Re: Chemistry Community Points

Unfortunately any extra points do not carry over. You'd have to do 50 more in addition to whatever number you left off with last quarter.
by Simer_Shera_2D
Sat Jan 09, 2021 4:21 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: very large K
Replies: 6
Views: 50

Re: very large K

Yes, I think that is correct since that would imply a ratio of lots of product and little reactant.
by Simer_Shera_2D
Sat Jan 09, 2021 4:19 pm
Forum: Ideal Gases
Topic: Kc vs Kp
Replies: 109
Views: 994

Re: Kc vs Kp

From my understanding, Kp is when all the products and reactants are gases. If the reaction is heterogenous, then you would use Kc.
by Simer_Shera_2D
Wed Jan 06, 2021 10:57 am
Forum: Administrative Questions and Class Announcements
Topic: Lecture Format
Replies: 22
Views: 128

Re: Lecture Format

The lectures are recorded and posted under Media Links on the day of class (MWF). I think Prof Lavelle did not want us to schedule any classes during his lecture because we have midterms during lecture time.
by Simer_Shera_2D
Tue Dec 15, 2020 11:45 am
Forum: Administrative Questions and Class Announcements
Topic: Saying Thank You to Dr. Lavelle
Replies: 337
Views: 140074

Re: Saying Thank You to Dr. Lavelle

Professor Lavelle, Even though we didn't get to have live lectures, I appreciate the effort you put into each class and your attempt to simulate the lecture hall using Bruincast. And let's not forget about the amount of office hours and learning sessions you arranged to fit just about anyone's sched...
by Simer_Shera_2D
Tue Dec 15, 2020 11:41 am
Forum: Student Social/Study Group
Topic: Changing Study Habits
Replies: 35
Views: 199

Re: Changing Study Habits

One thing I'm focusing on is staying motivated throughout the quarter. At the beginning, I was watching all the lecture videos on time and then doing practice problems immediately, allowing myself more time to absorb the material. By the end of the quarter, though, I was cramming all the week's lect...
by Simer_Shera_2D
Tue Dec 08, 2020 2:56 pm
Forum: General Science Questions
Topic: midterm 2 answers
Replies: 26
Views: 324

Re: midterm 2 answers

You can set up an appointment time with your TA to review answers for midterms! I believe Professor Lavelle will also be going over popular missed questions some time in his review this week.
by Simer_Shera_2D
Tue Dec 08, 2020 2:54 pm
Forum: Administrative Questions and Class Announcements
Topic: Final Exam Proctoring Clarification
Replies: 15
Views: 167

Re: Final Exam Proctoring Clarification

I think we will enter Zoom and take the exam the same way we've been taking our midterms, except this time, there will be two proctors in the room (your TA and a guest).
by Simer_Shera_2D
Tue Dec 08, 2020 2:53 pm
Forum: Significant Figures
Topic: Things to remember for final?
Replies: 20
Views: 159

Re: Things to remember for final?

I would definitely memorize all the strong acids and bases. There are some pretty good mnemonics online to use if you need some help!
by Simer_Shera_2D
Tue Dec 08, 2020 2:51 pm
Forum: Administrative Questions and Class Announcements
Topic: Review Midterm Mistakes
Replies: 3
Views: 34

Re: Review Midterm Mistakes

I believe you schedule a time or visit office hours to go over answers with your TA.
by Simer_Shera_2D
Tue Dec 08, 2020 2:49 pm
Forum: Student Social/Study Group
Topic: Finals Review
Replies: 4
Views: 49

Re: Finals Review

I've seen a couple TAs post PDFs of there worksheets on here but not all of them do. I suggest asking someone who may have attended the workshop to see if they can share with you if you're not able to find it, or just email the TA directly.
by Simer_Shera_2D
Mon Dec 07, 2020 1:33 pm
Forum: General Science Questions
Topic: 14B enrollment
Replies: 9
Views: 116

Re: 14B enrollment

I believe 14B will pick up where 14A left off, so a continuation of acids and bases.
by Simer_Shera_2D
Sun Dec 06, 2020 5:23 pm
Forum: Administrative Questions and Class Announcements
Topic: CCLE fixed?
Replies: 19
Views: 125

Re: CCLE fixed?

Mine is working pretty normally now as of this afternoon; hopefully it stays that way so we can have access to lectures this week!
by Simer_Shera_2D
Fri Dec 04, 2020 9:38 am
Forum: General Science Questions
Topic: curve
Replies: 16
Views: 181

Re: curve

I don't think anything is curved for the course since the syllabus has a point system breakdown. Good luck on the final :)
by Simer_Shera_2D
Fri Dec 04, 2020 9:34 am
Forum: Administrative Questions and Class Announcements
Topic: Worksheets for final
Replies: 5
Views: 67

Re: Worksheets for final

We can't use the ligand sheet so I would focus on memorizing the ones that pop up often in homework problems, like CN and NH3.
by Simer_Shera_2D
Fri Dec 04, 2020 9:32 am
Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
Topic: Sigma and Pi Bonds
Replies: 31
Views: 431

Re: Sigma and Pi Bonds

I don't think the order matters as long as you identify them correctly.
by Simer_Shera_2D
Fri Dec 04, 2020 9:29 am
Forum: Naming
Topic: Naming Order
Replies: 16
Views: 90

Re: Naming Order

I think the order of the ligands doesn't particularly matter as long as in your brackets, the transition metal comes first and anything outside of the coordination complex is outside of the brackets.
by Simer_Shera_2D
Fri Dec 04, 2020 9:28 am
Forum: Student Social/Study Group
Topic: Thoughts on Switching Majors?
Replies: 31
Views: 289

Re: Thoughts on Switching Majors?

Hello! I just wanted to drop in and say that although I haven't considered changing my major, I have been using GEs and extra classes as an opportunity to explore other subjects that might interest me. If I find something I love, I might consider minoring in it or even switching my major if it's not...
by Simer_Shera_2D
Sat Nov 28, 2020 8:44 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: pi and sigma bonds
Replies: 17
Views: 123

Re: pi and sigma bonds

A single bond = 1 sigma bond
A double bond = 1 sigma bond + 1 pi bond
A triple bond = 1 sigma bond + 2 pi bonds
Hope that helps!
by Simer_Shera_2D
Wed Nov 25, 2020 11:06 pm
Forum: Administrative Questions and Class Announcements
Topic: Chem 14B Lectures
Replies: 15
Views: 145

Re: Chem 14B Lectures

Chem 14B will have tests scheduled during lecture time according to Prof Lavelle's last email so I wouldn't recommend any overlap with another class.
by Simer_Shera_2D
Wed Nov 25, 2020 11:03 pm
Forum: Student Social/Study Group
Topic: Finals!
Replies: 43
Views: 361

Re: Finals!

It's cumulative! Good luck :) I'm sure we'll all do great.
by Simer_Shera_2D
Wed Nov 25, 2020 11:02 pm
Forum: Administrative Questions and Class Announcements
Topic: Updating Respondus Lockdown Browser
Replies: 8
Views: 220

Re: Updating Respondus Lockdown Browser

I didn't have to update Respondus but I would check the night before you have to use it (now for finals).
by Simer_Shera_2D
Wed Nov 25, 2020 11:01 pm
Forum: Administrative Questions and Class Announcements
Topic: Final exam (fall 2020 quarter)
Replies: 20
Views: 237

Re: Final exam (fall 2020 quarter)

I think the final will consist of everything we've learned so far plus what we'll learn in the next week. It's a cumulative exam.
by Simer_Shera_2D
Wed Nov 18, 2020 5:08 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: Hydrogen Bonding
Replies: 5
Views: 44

Hydrogen Bonding

If an N,O, or F atom hypothetically has 2 lone pairs, is it capable of creating 2 hydrogen bonds, one for every lone pair, or just one hydrogen bond. In other words, does the number of potential hydrogen bonds for an atom depend on the number of lone pairs that atom has?
by Simer_Shera_2D
Mon Nov 16, 2020 5:35 pm
Forum: Student Social/Study Group
Topic: Midterm 2 content
Replies: 20
Views: 167

Re: Midterm 2 content

This unit is definitely more conceptually-focused than the previous one. I don't think there should be any major calculations since we're expected to know most of the introduced equations conceptually.
by Simer_Shera_2D
Mon Nov 16, 2020 5:33 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: Midterm 2 Textbook Topics
Replies: 3
Views: 25

Re: Midterm 2 Textbook Topics

I don't recall what specifically is covered in those chapters but what I would do is go through each bullet point in the outlines that'll be on the exam make you're solid on the objective. If you're able to explain/answer the outline bullet points, then you should be in good shape.
by Simer_Shera_2D
Mon Nov 16, 2020 5:30 pm
Forum: Administrative Questions and Class Announcements
Topic: MT 2 Material
Replies: 4
Views: 43

Re: MT 2 Material

Midterm 2 should cover the last 8 points on Outline 2 and then all of Outline 3, which does not include anything regarding VSPER.
by Simer_Shera_2D
Mon Nov 16, 2020 5:28 pm
Forum: Administrative Questions and Class Announcements
Topic: Updating Respondus Lockdown Browser
Replies: 8
Views: 220

Re: Updating Respondus Lockdown Browser

Do a test run of Lockdown by opening it up before your exam just to check for any pending updates. If you don't see anything, you should be good to go!
by Simer_Shera_2D
Mon Nov 16, 2020 5:27 pm
Forum: Lewis Structures
Topic: electron configuration
Replies: 4
Views: 32

Re: electron configuration

A orbital that is half or completely filled is at a lower energy level than having one with 8 electrons and 2 in the s orbital, so d10 is preferred to reach the lowest energy state possible.
by Simer_Shera_2D
Sat Nov 14, 2020 2:37 pm
Forum: Student Social/Study Group
Topic: Midterm 2
Replies: 22
Views: 135

Re: Midterm 2

I remember seeing some problems exactly from the textbook on Midterm 1 so I'll probably be focusing on going through those problems after finishing Sapling.
by Simer_Shera_2D
Fri Nov 13, 2020 8:01 pm
Forum: Resonance Structures
Topic: lewis base or acid
Replies: 15
Views: 124

Re: lewis base or acid

Acids accept electrons and bases donate!
by Simer_Shera_2D
Fri Nov 13, 2020 7:59 pm
Forum: Administrative Questions and Class Announcements
Topic: Lecture #18
Replies: 3
Views: 26

Re: Lecture #18

Everything up till Wednesday of this week is fair game for the midterm. Good luck!
by Simer_Shera_2D
Wed Nov 11, 2020 9:23 pm
Forum: Administrative Questions and Class Announcements
Topic: Midterm 2 Questions
Replies: 16
Views: 176

Re: Midterm 2 Questions

According to Prof Lavelle's last email, this midterm will have more, lower point, shorter questions than the last.
by Simer_Shera_2D
Wed Nov 11, 2020 9:21 pm
Forum: Administrative Questions and Class Announcements
Topic: Audio-Visual Modules for MD 2 Material?
Replies: 5
Views: 48

Re: Audio-Visual Modules for MD 2 Material?

Unfortunately, there won't be any audio-visual modules for midterm 2. They were very helpful though, so I hope Prof Lavelle considers integrated them in his future courses!
by Simer_Shera_2D
Wed Nov 11, 2020 9:19 pm
Forum: Student Social/Study Group
Topic: Midterm 2
Replies: 31
Views: 326

Re: Midterm 2

Yes! Prof Lavelle made an announcement on his website that states that the last eight bullet points and all of Outline 3 will be tested.
by Simer_Shera_2D
Sun Nov 08, 2020 3:45 pm
Forum: Octet Exceptions
Topic: Radicals
Replies: 7
Views: 103

Radicals

I was watching the Wednesday lecture and noticed that there were many examples of radical lewis structures given. I understand that radical structures don't have enough electrons to make a complete octet so they're highly reactive and have a short existence but what else do we need to know beyond th...
by Simer_Shera_2D
Sun Nov 08, 2020 3:42 pm
Forum: Administrative Questions and Class Announcements
Topic: Taking Bio and Chem simultaneously
Replies: 26
Views: 114

Re: Taking Bio and Chem simultaneously

I have a friend who is taking 7A and like others have said, it's definitely a lot more of a heavy workload compared to Chem 14A. I think your ability to manage both courses depends on what other courses you're enrolled in (an easy GE maybe?) and what other commitments you have. If you choose to take...
by Simer_Shera_2D
Fri Nov 06, 2020 9:03 am
Forum: Trends in The Periodic Table
Topic: Nuclear Charge
Replies: 6
Views: 30

Re: Nuclear Charge

Nuclear charge increases across a period because as you move across, the number of protons increase while electron shielding remains the same.
by Simer_Shera_2D
Wed Nov 04, 2020 2:15 pm
Forum: Administrative Questions and Class Announcements
Topic: Chem 14B Enrollment
Replies: 27
Views: 350

Re: Chem 14B Enrollment

A lot of the above responses already covered the jist of it so I just wanted to drop an additional resource: https://stack.dailybruin.com/2020/02/05/class-fill-ups/ This is a graph from the Daily Bruin that allows you to find how quickly a class filled up last winter since it's likely this year's en...
by Simer_Shera_2D
Mon Nov 02, 2020 5:18 pm
Forum: Administrative Questions and Class Announcements
Topic: Unable to access week 5-6 homework
Replies: 6
Views: 63

Re: Unable to access week 5-6 homework

I think it should unlock later today or in the next couple of days.
by Simer_Shera_2D
Mon Nov 02, 2020 5:16 pm
Forum: Student Social/Study Group
Topic: Midterm 2
Replies: 31
Views: 326

Re: Midterm 2

I heard that Prof Lavelle expects the midterm to cover from quantum number (so the last 8 bullet points) to the end of Outline 3.
by Simer_Shera_2D
Sun Nov 01, 2020 1:06 am
Forum: Student Social/Study Group
Topic: Halloween!!!
Replies: 54
Views: 350

Re: Halloween!!!

I spent a good chunk of Halloween catching up on some missed chemistry lectures (I know, spooky right?) while eating lots of candy.
by Simer_Shera_2D
Sun Nov 01, 2020 1:05 am
Forum: Properties of Light
Topic: Midterm
Replies: 6
Views: 73

Re: Midterm

I'm pretty sure there is no curve for the midterm or this course. As for partial credit, I think Prof communicated that we will be received partial credit for certain answer choices in some larger problems. We're not sure when the midterm will be graded, though, since there was in error in a questio...
by Simer_Shera_2D
Fri Oct 30, 2020 8:34 pm
Forum: Administrative Questions and Class Announcements
Topic: Curve on Midterm
Replies: 9
Views: 118

Re: Curve on Midterm

To my understanding, this class is not curved so the midterm will be grade on a straight scale.
by Simer_Shera_2D
Fri Oct 30, 2020 2:57 pm
Forum: Trends in The Periodic Table
Topic: Trends
Replies: 14
Views: 113

Re: Trends

Generally, atomic radius gets smaller moving up and to the left of the periodic table as a result of effective nuclear charge. For ionic radius, an atom that has lost an electron (+ charge) is generally going to hold onto its remaining electrons a lot tighter (smaller radius) while an atom that has ...
by Simer_Shera_2D
Fri Oct 30, 2020 2:52 pm
Forum: *Shrodinger Equation
Topic: New Audio-Visual Modules
Replies: 9
Views: 104

Re: New Audio-Visual Modules

He doesn't have anymore and I don't think he'll be posting them. Hopefully he'll notice how helpful they were and begin implemented them for future quarter.
by Simer_Shera_2D
Fri Oct 30, 2020 2:50 pm
Forum: Student Social/Study Group
Topic: Test Scored for Midterm 1
Replies: 49
Views: 384

Re: Test Scored for Midterm 1

I've heard speculation that it might be later this evening after the last testing section at 3:00pm. Of course, no one knows for sure. Good luck :)
by Simer_Shera_2D
Tue Oct 27, 2020 11:55 am
Forum: Administrative Questions and Class Announcements
Topic: How early should we go to our discussion sections for the midterm?
Replies: 3
Views: 70

Re: How early should we go to our discussion sections for the midterm?

Our TA is asking us to enter Zoom through our phones at the time of our discussion and lockdown through our laptops. I think you can log in at your normal time and they'll give everyone 5 minutes to get set up.
by Simer_Shera_2D
Fri Oct 23, 2020 9:45 am
Forum: Heisenberg Indeterminacy (Uncertainty) Equation
Topic: Midterm 1
Replies: 18
Views: 207

Re: Midterm 1

I don't think anyone knows for sure, but I would study and be ready for it anyways. Also I'm wondering if there is a list of materials we are allowed to use during the midterm? According to his email and information we receive from TAs, I think we're limited to the periodic table, constants sheet, ...
by Simer_Shera_2D
Thu Oct 22, 2020 1:12 pm
Forum: Student Social/Study Group
Topic: studying for exams
Replies: 21
Views: 320

Re: studying for exams

I personally struggle with working through problems quickly and with the midterm only being 50 min, my greatest concern is running out of time. The first thing I do is listen to the lecture and take "messy notes", literally just jotting down everything I see and hear. Right after, I make a...
by Simer_Shera_2D
Thu Oct 22, 2020 8:53 am
Forum: Administrative Questions and Class Announcements
Topic: Scratch Paper for Midterm
Replies: 2
Views: 57

Scratch Paper for Midterm

Hello!
I noticed in Prof Lavelle's latest email that we can use the back of the periodic table and constants sheet after it's been checked by our TA for scratch work during the midterm. Does that imply that that's the only scratch paper we can use or can we have other blank sheets?
by Simer_Shera_2D
Thu Oct 22, 2020 8:49 am
Forum: Einstein Equation
Topic: Textbook Question 1B.7
Replies: 4
Views: 67

Re: Textbook Question 1B.7

Assuming that you have already calculated the answer to part a), you would already know that the energy an excited sodium emits is around E= 3.37 x 10^-19 J Now, the next step is that we covert the of sodium atoms first to moles of sodium atoms and then from moles to total number of atoms by using ...
by Simer_Shera_2D
Wed Oct 21, 2020 3:23 pm
Forum: Administrative Questions and Class Announcements
Topic: The Midterm Topics
Replies: 5
Views: 70

Re: The Midterm Topics

After doing many of the textbook problems, I notice that not a lot of them require knowledge beyond what we've learned (like nomenclature and writing equations from diagrams) so I think we won't be expected to know more than the basics. The only section that had some tricky problems like that was on...
by Simer_Shera_2D
Wed Oct 21, 2020 3:21 pm
Forum: SI Units, Unit Conversions
Topic: units to know for midterm
Replies: 11
Views: 152

Re: units to know for midterm

I think we likely have to know the common ones like nano, pica, micro, milli, centi, kilo but I noticed on the constants sheet that he gives us the oddball ones like eV.
by Simer_Shera_2D
Mon Oct 19, 2020 5:45 pm
Forum: Heisenberg Indeterminacy (Uncertainty) Equation
Topic: Multiplying Uncertainty of Speed by two to find deltaV
Replies: 4
Views: 51

Multiplying Uncertainty of Speed by two to find deltaV

In one of the audio-visual lectures, Prof Lavelle mentions that if we are given a speed with an uncertainty of plus/minus some number, we should multiply that number by two to get delta v. For example, if given 100m +/- 2m, then delta v=4m. In the examples in the textbook, however, like in 1D #27, w...
by Simer_Shera_2D
Fri Oct 16, 2020 4:28 pm
Forum: Photoelectric Effect
Topic: photoelectric experiment post assessment
Replies: 2
Views: 36

Re: photoelectric experiment post assessment

In all the explanations, it looks like it's UV since UV is the only light that has photons with enough energy to overcome the work function for a particular metal.
by Simer_Shera_2D
Tue Oct 13, 2020 2:18 pm
Forum: Quantum Numbers and The H-Atom
Topic: different values for Rydberg constant
Replies: 2
Views: 29

Re: different values for Rydberg constant

According to the equation sheet on the Chem 14A website, the Rydberg constant is R = 3.28984 × 1015 Hz. I think you're looking at the constant in different units (m and Joules), which is why the numbers are different.
by Simer_Shera_2D
Tue Oct 13, 2020 2:15 pm
Forum: DeBroglie Equation
Topic: DeBroglie Concept Help
Replies: 4
Views: 61

Re: DeBroglie Concept Help

Hello! From my understanding of the lectures, De Broglie's concept explain that any moving particle with a momentum has wave properties and so all matter has wave like properties. We only notice these properties in small objects with a high velocity since those with a higher mass (like the baseball ...
by Simer_Shera_2D
Tue Oct 13, 2020 2:03 pm
Forum: Properties of Light
Topic: What exactly is Φ?
Replies: 16
Views: 183

Re: What exactly is Φ?

The work function is the energy required to remove a single electron from a specific surface. From my understanding and the practice problems that I've done, it's always provided in the problem and does not need to be solved for.
by Simer_Shera_2D
Tue Oct 13, 2020 2:00 pm
Forum: Properties of Light
Topic: video modules
Replies: 10
Views: 96

Re: video modules

Although they're not required, I found that watching the lectures ahead of time really helped me understand his current lectures. I'd definitely suggest watching if you have some time!
by Simer_Shera_2D
Wed Oct 07, 2020 10:09 am
Forum: Administrative Questions and Class Announcements
Topic: Sapling Homework Submission Confirmation [ENDORSED]
Replies: 2
Views: 51

Re: Sapling Homework Submission Confirmation [ENDORSED]

I believe within a couple of hours, you should see your score reflected in CCLE as well as Sapling's gradebook.

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