Search found 69 matches
- Sat Mar 13, 2021 8:42 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Saying Thank You to Dr. Lavelle
- Replies: 490
- Views: 513856
Re: Saying Thank You to Dr. Lavelle
Dr. Lavelle, Thank you so much for all you do and for helping your students to be successful. For me personally, I came in to 14A last quarter not knowing really how to study independently, especially for challenging classes such as yours. Your countless resources that you provide your students with...
- Sat Mar 13, 2021 8:28 pm
- Forum: Reaction Mechanisms, Reaction Profiles
- Topic: K = kforward/kreverse
- Replies: 16
- Views: 1035
Re: K = kforward/kreverse
That is correct. However I would be careful though. Sometimes k' is used to refer to the pseudo-rate constant of a reaction, although I don't believe that has been the case in this class, so I wouldn't worry too much about confusing the two types of k' on the formula sheet or anything.
- Sat Mar 13, 2021 8:12 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: when to add Pt (s)
- Replies: 23
- Views: 932
Re: when to add Pt (s)
You would add Pt whenever one there is no conducting metal present. An example provided by Dr. Lavelle would be Ag(s)|AgBr(s)||Br(aq)|Br2 (g). Because the right side (the cathode) does not contain a conducting metal already, you would procede to add a platinum rod to that side.
- Sat Mar 13, 2021 8:03 pm
- Forum: Second Order Reactions
- Topic: Graphs
- Replies: 9
- Views: 731
Re: Graphs
I've attached a slide that hopefully summarizes everything pretty well. I hope this helps!
- Sat Mar 13, 2021 7:58 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Chemistry Community Posts
- Replies: 10
- Views: 553
Re: Chemistry Community Posts
The posts will still stay up and we will still be able to search for and view them. However, if I remember correctly then participation in this forum is reserved for current students in Dr. Lavelle's classes.
- Sat Mar 13, 2021 7:52 pm
- Forum: Student Social/Study Group
- Topic: Left/Right Electrode
- Replies: 9
- Views: 612
Re: Left/Right Electrode
By convention, the anode is typically on the left and the cathode would therefore be on the right. What helps me remember this is that the way you would "read" a diagram showing this is in alphabetical order: [A]node --> [C]athode, or alternatively [O]xidation --> [R]eduction.
- Sat Mar 13, 2021 7:48 pm
- Forum: Student Social/Study Group
- Topic: Equations for the Final
- Replies: 5
- Views: 340
Re: Equations for the Final
Dr. Lavelle mentioned in the review lecture that when a system is at equilibrium, =RTln(K). It may prove useful considering it showed up on a previous final exam (also mentioned in the review lecture).
- Sat Mar 13, 2021 7:43 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: K
- Replies: 33
- Views: 1255
Re: K
K is the broader and more commonly used form of the variable known as the equilibrium constant of a reaction. Kc is used to describe this constant with respect to molar concentration of the involved species, whereas Kp does the same with respect to partial pressures.
- Sat Mar 13, 2021 5:45 pm
- Forum: Thermodynamic Definitions (isochoric/isometric, isothermal, isobaric)
- Topic: Temperature of Standard Conditions
- Replies: 5
- Views: 464
Temperature of Standard Conditions
While studying for the final exam, I realized there was no consistent definition of what the temperature should be associated with "standard conditions". Sometimes standard conditions' temperature is defined as the freezing point of water (273 K) and sometimes standard conditions is used t...
- Sat Mar 13, 2021 5:32 pm
- Forum: Gibbs Free Energy Concepts and Calculations
- Topic: Delta G and G naught
- Replies: 46
- Views: 4378
Re: Delta G and G naught
refers to the change in Gibbs Free Energy, whereas refers to the change in Gibbs Free Energy under standard conditions (P=1 atm, T=273K).
- Sat Mar 13, 2021 1:43 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Constants Sheet
- Replies: 9
- Views: 557
Re: Constants Sheet
Reach out to your TA or proctor in advance if you want to be sure, but I would recommend going in with a blank constants and equations sheet and then highlighting it once it's been approved by whoever is administering the final exam. I can't imagine they'll be more upset by an extra writing utensil ...
- Sat Mar 13, 2021 1:38 pm
- Forum: Administrative Questions and Class Announcements
- Topic: [TA Review] Kinetics-Wilberth
- Replies: 3
- Views: 602
Re: [TA Review] Kinetics-Wilberth
Thank you for making this available! This was super helpful for tying everything together!
- Sat Mar 13, 2021 1:31 pm
- Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
- Topic: catalyst's effect on equilibrium
- Replies: 9
- Views: 784
Re: catalyst's effect on equilibrium
Catalysts change the pathway of a reaction by lowering the activation energy (E a ) but do not change anything fundementally about the physical reactions that take place. This means that the ratio of product concentration to reactant concentration at equilibrium would not be changed either since bot...
- Sat Mar 13, 2021 1:25 pm
- Forum: Phase Changes & Related Calculations
- Topic: Enthalpy vs heat
- Replies: 31
- Views: 2226
Re: Enthalpy vs heat
Enthalpy is a state property and often represents one aspect of a system at a particular instant in time. It is represented in equations by the variable H. Conversely, heat is often described as something input into or taken out of a system. It is represented in equations by the variable q and is of...
- Sat Mar 13, 2021 1:20 pm
- Forum: General Rate Laws
- Topic: Order of a reaction
- Replies: 10
- Views: 612
Re: Order of a reaction
The order of an overall reaction is equal to the sum of the orders of the individual reactants. If the orders of the reactants are unknown, you can use the method described in a previous reply to determine what they are. A good example of doing all of these steps together can be found on problem 7 o...
- Sat Mar 13, 2021 1:13 pm
- Forum: Concepts & Calculations Using First Law of Thermodynamics
- Topic: delta U=0
- Replies: 17
- Views: 2516
Re: delta U=0
The change in internal energy (delta U) is 0 for isothermal systems because any heat added to or taken from the system translates directly into work done by (or on) the ideal gas involved. The equation delta U = q+w can be rearranged as q=-w when there is no change in internal energy, indicating tha...
- Sat Mar 13, 2021 1:07 pm
- Forum: General Science Questions
- Topic: Final Exam
- Replies: 39
- Views: 1823
Re: Final Exam
Dr. Lavelle usually sends out an email detailing all of the available resources for the week leading up to the final exam, so I'd definitely look into as many of those as you can. Additionally, Friday's lecture (March 12, 2021) is a review session so that's also something that's definitely worth a (...
- Sat Mar 13, 2021 1:03 pm
- Forum: General Science Questions
- Topic: Final Nerves and thoughts
- Replies: 11
- Views: 821
Re: Final Nerves and thoughts
A lot of the stress I personally feel relating to tests comes from the idea of not knowing how to do a certain type of problem that will end up on the test. For that reason, I'll be spending the remainder of my time prior to the final studying and doing practice problems. The more I do, the lower th...
- Sat Mar 13, 2021 12:59 pm
- Forum: General Science Questions
- Topic: No Lavelle Chem 14C?
- Replies: 68
- Views: 4288
Re: No Lavelle Chem 14C?
Chem 14C will be taught in the spring by Dr. Castillo. While the class isn't explicitly stated as being asynchronous, I would imagine that the lectures will likely be recorded even if they are done live so that students cannot attend can still have access to the lectures.
- Fri Mar 12, 2021 11:04 pm
- Forum: Student Social/Study Group
- Topic: How do you deal with burnout?
- Replies: 144
- Views: 13120
Re: How do you deal with burnout?
I realize this is a terrible way to go about dealing with burnout and it's probably the reason burnout is basically cyclical for me, however it's served me well thus far so I figure it's worth sharing. A lot of the time, I just embrace it. I realize that I'm burnt out in the moment, so I just let th...
- Fri Mar 12, 2021 10:55 pm
- Forum: Student Social/Study Group
- Topic: Classes for next quarter?
- Replies: 165
- Views: 13101
Re: Classes for next quarter?
As of right now I'll be taking CHEM14C, CHEM14CL, and LS40 in the spring. I'm always looking for more people to collaborate and study with, so if you're interested please don't hesitate to reach out!
- Fri Mar 12, 2021 10:52 pm
- Forum: Student Social/Study Group
- Topic: Playlist
- Replies: 86
- Views: 6297
Re: Playlist
M83's album "Hurry up, we're dreaming" has definitely been helping me get through the quarter. 10/10 would recommend :)
- Fri Mar 12, 2021 10:49 pm
- Forum: Student Social/Study Group
- Topic: Low Grades & Graduate School
- Replies: 22
- Views: 1598
Re: Low Grades & Graduate School
Given that the distanced learning approach isn't necessarily the most ideal, I wouldn't worry too much about not performing as well as you'd have liked to in a few classes. The pandemic has drastically changed everyone's lives, and everyones own individual experiences are different and are valid. I'...
- Fri Mar 12, 2021 10:44 pm
- Forum: Student Social/Study Group
- Topic: Game Night! + **more
- Replies: 1
- Views: 176
Re: Game Night! + **more
Is there a link to the groupme for those who are maybe not already in it but are interested in learning more abot the event or have suggestions for games/activities?
- Fri Mar 12, 2021 10:42 pm
- Forum: Student Social/Study Group
- Topic: Exam Review
- Replies: 10
- Views: 531
Re: Exam Review
Definitely email your TA about it to be sure that's something that can still happen. It's a great idea, I just hope it's not a bit late in the game to be asking TAs for a favor like that though.
- Fri Mar 12, 2021 10:38 pm
- Forum: Student Social/Study Group
- Topic: Spring Quarter
- Replies: 60
- Views: 2944
Re: Spring Quarter
I'll be taking CHEM14C and CHEM14CL concurrently!
- Fri Mar 12, 2021 10:36 pm
- Forum: Arrhenius Equation, Activation Energies, Catalysts
- Topic: sapling 14
- Replies: 7
- Views: 428
Re: sapling 14
You would use a form of the Arrhenius equation that looks like: ln(k2/k1)=-(Ea/R)((1/T1)-(1/T2)). This formula is on your allowed equations and constants sheet, but note that on the sheet activation energy (Ea) is replaced with standard enthalpy of a reaction (*delta*Ho).
- Fri Mar 12, 2021 10:30 pm
- Forum: First Order Reactions
- Topic: 1st Order Reactions
- Replies: 29
- Views: 1813
Re: 1st Order Reactions
With regards to first order reactions, you would see a straight line with a slope of -k when you plot the natural log of the concentration in question (on the vertical axis) against time (horizontal axis). If you were to plot the concentration of that same reactant without taking the natural log aga...
- Fri Mar 12, 2021 10:18 pm
- Forum: Zero Order Reactions
- Topic: Overall reaction order
- Replies: 22
- Views: 1026
Re: Overall reaction order
Theoretically yes, but given that the only thing that would determine the rate of the overall reaction at that point would be the rate constant k, it isn't exactly a common phenomenon.
- Fri Mar 12, 2021 10:16 pm
- Forum: Zero Order Reactions
- Topic: zero order
- Replies: 47
- Views: 1770
Re: zero order
The concentration of the zero order reactants does not affect the rate of the overall reaction. Sometimes this is because the reactant in question is not directly involved in the rate-limiting step.
- Tue Mar 09, 2021 9:18 pm
- Forum: Student Social/Study Group
- Topic: Fav Shows of the Moment
- Replies: 115
- Views: 27075
Re: Fav Shows of the Moment
John Mulaney's stand-up specials on Netflix are a great way to relax when you need a break from studying. I highly recommend "Kid Gorgeous at Radio City".
- Tue Mar 09, 2021 9:13 pm
- Forum: Student Social/Study Group
- Topic: Note Taking
- Replies: 145
- Views: 15139
Re: Note Taking
I choose to handwrite my notes on my laptop, typically using an application like Microsoft OneNote. To me, it combines the muscle memory associated with traditional notetaking and the accessibility of working electronically (and offline). It also can help to cut back on the clutter in your workspace...
- Tue Mar 09, 2021 9:07 pm
- Forum: Student Social/Study Group
- Topic: Chem 14C
- Replies: 17
- Views: 856
Re: Chem 14C
It's a mixed response from the people I've spoken to regarding their experiences with CHEM14C, however I will say that you shouldn't let anyone's individual negative experiences with the class affect how you choose to approach it. You have the potential to do amazing in that class, so do your best t...
- Tue Mar 09, 2021 9:04 pm
- Forum: Student Social/Study Group
- Topic: Chemistry Community Posts
- Replies: 16
- Views: 840
Re: Chemistry Community Posts
Hey there! We're in the same discussion section, so I can confirm that Reid is just checking that we have the fifty points by the end of the quarter. For everyone not in 2E, I'd definitely check with your TAs to be sure but I would imagine many of them are also going to check in at the very end of t...
- Tue Mar 09, 2021 8:59 pm
- Forum: Student Social/Study Group
- Topic: What organizations are you guys in?
- Replies: 53
- Views: 3005
Re: What organizations are you guys in?
I'm a member of the Solid Gold Sound (a.k.a. the UCLA Marching Band)! 'Sko bru!
- Tue Mar 09, 2021 8:57 pm
- Forum: Student Social/Study Group
- Topic: Calculators
- Replies: 52
- Views: 3066
Re: Calculators
The only concern I would imagine there would be with using a more complex programmable calculator would be saving information onto it ahead of time, which I'm not even sure is something most calculators are capable of storing anyway. 4-function and scientific calculators are safe bets, and I would i...
- Tue Mar 09, 2021 8:53 pm
- Forum: Student Social/Study Group
- Topic: 14C/14CL
- Replies: 4
- Views: 399
Re: 14C/14CL
I will always vouch for taking a class and its associated lab concurrently. Some people find it a bit overwheming or difficult, however I personally view the pairing as a way to reinforce your understanding of the subject matter. It also helps that the two classes will sometimes cover the same topic...
- Tue Mar 09, 2021 8:48 pm
- Forum: Student Social/Study Group
- Topic: Fave food
- Replies: 266
- Views: 28827
Re: Fave food
Ever since quarantine started last year I seem to have developed a serious craving for the most low-effort foods, like toast or cereal. I don't really know why either, since I really enjoying making food lol.
- Tue Mar 09, 2021 8:44 pm
- Forum: Student Social/Study Group
- Topic: chem community points
- Replies: 23
- Views: 1077
Re: chem community points
By the deadline, you should have 50 Chemistry Community posts and/or replies from the current quarter. Depending on your TA, rollover (getting ahead) or retroactive (making up) posts might count but it's definetly something to consult your TA about if they haven't explicitly stated their grading pol...
- Tue Mar 09, 2021 8:40 pm
- Forum: Student Social/Study Group
- Topic: It is possible to study for the final in one day?
- Replies: 44
- Views: 3912
Re: It is possible to study for the final in one day?
To answer your question, hypothetically yes. However, I wouldn't recommend it, especially if cramming isn't your typical study method. Frustration with your situation is completely valid, and it'd definetly be easier to get some more studying done with a more open schedule, however that doesn't mean...
- Tue Mar 09, 2021 8:34 pm
- Forum: Student Social/Study Group
- Topic: Final Jitters
- Replies: 457
- Views: 334280
Re: Final Jitters
This might be a bit hard to swallow at first, but try changing how you approach the exam perception-wise. A lot of academic-related anxiety in my experience typically stems from unrealistic expectations for oneself. Try approaching the final exam as a chance to show what you do know rather then an e...
- Tue Mar 09, 2021 8:22 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Deprotonated bases
- Replies: 2
- Views: 245
Re: Deprotonated bases
The way I like to think of it is that for a strong base, for instance, deprotonation would imply that the base in its current state would likely resemble its conjugate acid. In the calculations for pk b values, deproponated would mean the concentration term of the "B" species that is not &...
- Tue Mar 09, 2021 8:16 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: pka vs ka
- Replies: 28
- Views: 1259
Re: pka vs ka
This has to do with the logarithm rule which states that the sum of two logs (let's call them logx and logy) is equal to the log of the product of the numbers you were taking the log of previously. (i.e. log(x*y))
- Tue Mar 09, 2021 8:05 pm
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: Free Energy
- Replies: 49
- Views: 1890
Re: Free Energy
State functions like Gibbs Free Energy (G) depend only on the initial and final values, and not on the pathway of the reaction. Because values like activation energy or free energy of intermediates (among others) do not affect the change in Gibbs Free Energy, we can assume that the Gibbs Free Energy...
- Mon Mar 08, 2021 11:53 am
- Forum: Phase Changes & Related Calculations
- Topic: State Property
- Replies: 71
- Views: 2915
Re: State Property
State functions like enthalpy (H) and entropy (S) are dependent only on the overall change of some quantity (i.e on initial and final conditions), whereas path functions rely on all intermediates in addition to the initial and final quantities.
- Mon Mar 08, 2021 11:42 am
- Forum: Ideal Gases
- Topic: Exo vs Endothermic
- Replies: 40
- Views: 2268
Re: Exo vs Endothermic
In the context of this question, I think the goal was to understand that the input of energy required to break the bond holding together the O2 is less than the enrgy given off by the formation of the two C-O bonds in CO2, therefore you can conclude the overall reaction would be exothermic.
- Mon Mar 08, 2021 11:34 am
- Forum: Student Social/Study Group
- Topic: 14CL Waitlist
- Replies: 5
- Views: 710
Re: 14CL Waitlist
What I would recommend is enrolling in the lecture with the most availability in terms of open spots(unless you have a time conflict with it). Then, pick whatever discussion section you'd like most, even if it means you're on the waitlist for the discussion section for a bit. A lot of rescheduling h...
- Mon Mar 08, 2021 11:28 am
- Forum: Student Social/Study Group
- Topic: Final
- Replies: 12
- Views: 570
Re: Final
I can't remeber if it was Dr. Lavelle or my TA that said it, but one instructor mentioned that the likelihood of a certain topic being on the final exam is fairly proportional to how much time was spent on the concept throughout the quarter. That being said, I would definitely anticipate some thermo...
- Mon Mar 08, 2021 11:23 am
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3007480
Re: Post All Chemistry Jokes Here
What is Kylo Ren's favorite thing to study with relation to Kinetics?
First Order Reactions!
First Order Reactions!
- Sun Dec 13, 2020 10:14 am
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3007480
Re: Post All Chemistry Jokes Here
Why did the acid go to the gym?
To become a buffer solution!
To become a buffer solution!
- Sat Dec 12, 2020 5:31 pm
- Forum: Wave Functions and s-, p-, d-, f- Orbitals
- Topic: How many values of the quantum number l are possible when n = 7?
- Replies: 5
- Views: 1489
Re: How many values of the quantum number l are possible when n = 7?
I have a feeling this question was designed more to test your understanding of how quantum numbers relate to one another as opposed to that of how tangible certain chemical phenomena would be. For that reason, I'd say stick with six because HYPOTHETICALLY, a case in which the principal quantum numbe...
- Sat Dec 12, 2020 5:22 pm
- Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
- Topic: Ligands
- Replies: 4
- Views: 345
Re: Ligands
Are ligands specific to transition metals/metals or can they be applied to all elements? My understanding is the that the term "ligand" refer to any species that is bound to a metal by a coordinate bond. Because of this, I think it's fair to use the term ligand with an element bound to th...
- Sat Dec 12, 2020 5:03 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Electron Geometry
- Replies: 8
- Views: 392
Re: Electron Geometry
Molecular geometry takes into account electrons in bonding pairs, while electron geometry includes these in addition to lone pair electrons. It is for this reason that we use molecular geometry when describing the shape of a molecule.
- Sat Dec 12, 2020 4:53 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Bond angles
- Replies: 12
- Views: 797
Re: Bond angles
I think as long as we are familiar with the more common bond angles (i.e. 90, 109.5, 120 etc. as well as the associated shapres we should be alright.
- Thu Dec 10, 2020 10:34 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3007480
Re: Post All Chemistry Jokes Here
If H2O is the formula for water, what is the formula for ice?
H2O CUBED!
H2O CUBED!
- Thu Dec 10, 2020 10:25 pm
- Forum: Trends in The Periodic Table
- Topic: Finding Charge
- Replies: 4
- Views: 375
Re: Finding Charge
If I recall correctly, almost all of the transition metals would have a possible +2 charge because of the electron configuration and the s orbital of the energy level above that of the d orbitals (example: 4s for iron) filling in prior to the d-orbitals, thus allowing for those metals two form +2 ca...
- Thu Dec 10, 2020 10:18 pm
- Forum: Properties of Light
- Topic: Is c always the speed of light?
- Replies: 92
- Views: 4941
Re: Is c always the speed of light?
In the context of this class, the constant "c" will always refer to the speed of light, which is approximately 2.99792 x 108 meters per second.
- Thu Dec 10, 2020 10:14 pm
- Forum: Significant Figures
- Topic: 12/07 Lecture sig figs
- Replies: 4
- Views: 373
Re: 12/07 Lecture sig figs
I don't believe Dr. Lavelle would use this problem as an exception to the sig fig conventions we have been taught thus far. It's likely he misspoke and meant to say 3 sig figs.
- Thu Dec 10, 2020 10:10 pm
- Forum: Balancing Chemical Reactions
- Topic: Diatomic Molecules
- Replies: 7
- Views: 778
Re: Diatomic Molecules
The diatomic molecules are the molecular forms of hydrogen, nitrogen, fluorine, oxygen, iodine, chlorine, and bromine. A mnemonic I was taught to help remember them is: Have No Fear Of Ice Cold Beer.
- Thu Dec 10, 2020 10:05 pm
- Forum: Limiting Reactant Calculations
- Topic: Cl vs Cl2
- Replies: 9
- Views: 7138
Re: Cl vs Cl2
Correct, Cl2 is used when referring to chlorine gas but Cl just refers to a chlorine atom.
- Tue Dec 08, 2020 11:01 pm
- Forum: Accuracy, Precision, Mole, Other Definitions
- Topic: Avogadro constant
- Replies: 40
- Views: 2290
Re: Avogadro constant
The vast majority of the applications of the constant are in problems relating to stoichiometry. The units for the constant (which is used to find number of atoms, as represented by N*subscript A* on the constants and equations sheet) are inverse moles. Therefore it is used when converting between t...
- Tue Dec 08, 2020 10:56 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3007480
Re: Post All Chemistry Jokes Here
Why did the white bear dissolve in water?
Because it was a polar bear.
Because it was a polar bear.
- Tue Dec 08, 2020 10:46 pm
- Forum: Trends in The Periodic Table
- Topic: dissociation energy
- Replies: 3
- Views: 344
Re: dissociation energy
The dissociation energy of a particular bond will typically increase when the difference in the electronegativities of the atoms involved in the bond increases. As far as dissociation energy relative to a singular atom's electronegativity, I'm not sure if there's much that can be said unless the typ...
- Tue Dec 08, 2020 10:39 pm
- Forum: Properties of Light
- Topic: Frequency and amplitude
- Replies: 7
- Views: 538
Re: Frequency and amplitude
I like to use the analogy of an image in a word document (of the wave in question, if it helps) so as to better understand how changes in one parameter will affect the others related to the same wave. For example, you can think of changes in amplitude to be like strecthing or shrinking the vertical ...
- Tue Dec 08, 2020 7:49 pm
- Forum: SI Units, Unit Conversions
- Topic: How to memorize prefixes
- Replies: 36
- Views: 3450
Re: How to memorize prefixes
On a separate note, if you're worried about prefix memorization for the sake of doing well on one of the exams, I wouldn't worry to much. On the constants and equations sheet on Dr. Lavelle's website, all of the units that are likely to appear on an exam are listed as a measure of the base unit, alb...
- Tue Dec 08, 2020 7:42 pm
- Forum: SI Units, Unit Conversions
- Topic: How to memorize prefixes
- Replies: 36
- Views: 3450
Re: How to memorize prefixes
This may not be overly specific, but whenever looking at a prefix I'm unsure of, then I try to think of another word I know already that effectively contains the same prefix. For example, I know that a CENTury is a period of 100 years, so I can assume that a unit with the prefix centi- will relate t...
- Tue Dec 08, 2020 7:34 pm
- Forum: Significant Figures
- Topic: sig fig
- Replies: 20
- Views: 990
Re: sig fig
Will sig figs be important on the final? This is entirely speculative, but I have a feeling that sig figs will be important in any calculation problem where we are given some of the values used during calculation. I would imagine there's a little more leeway with respect to values coming from the p...
- Mon Dec 07, 2020 2:18 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Unable to view the lectures
- Replies: 12
- Views: 629
Re: Unable to view the lectures
I had a similar issue. I tried using several different device, browser, and connection combinations and still wasn't able to view today's lecture properly. The closest I got was using a PC connected to ethernet, but even then the lecture video had no audio. This could just be a problem with the uplo...
- Tue Dec 01, 2020 7:52 pm
- Forum: Student Social/Study Group
- Topic: Big Sad: Midterm 2
- Replies: 86
- Views: 5456
Re: Big Sad: Midterm 2
As someone who performed poorly on midterm 2 especially in comparison to midterm 1, I totally understand the concerns associated with a less than ideal midterm performance. However, speaking also as someone who has recovered from some fairly worrying preliminary grades in the past, know that it is s...