## Search found 60 matches

Sat Jan 16, 2021 6:30 pm
Forum: Student Social/Study Group
Topic: Study Habits
Replies: 91
Views: 246

### Re: Study Habits

I also struggled with studying last quarter and I think for this quarter is would be a good idea do textbook problems and also go to step up sessions to test what you already know.
Sat Jan 16, 2021 6:27 pm
Forum: Student Social/Study Group
Topic: Midterms During Lecture
Replies: 38
Views: 171

### Re: Midterms During Lecture

Yes, I believe that’s true as he announced last quarter that students should resolve any time conflicts with lecture
Sat Jan 16, 2021 6:26 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: pH of Weak Acids
Replies: 11
Views: 56

### Re: pH of Weak Acids

I was actually confused on the same thing
Sat Jan 16, 2021 6:24 pm
Forum: Ideal Gases
Topic: Kc vs. Kp
Replies: 14
Views: 41

### Re: Kc vs. Kp

Yes, you solve for Kp the same thing way as Kc
Sat Jan 16, 2021 6:21 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: ICE table and Molarity units
Replies: 16
Views: 35

### Re: ICE table and Molarity units

I don’t think they have to be in mol/L, they just all have to have the same units but I prefer to use mol/L
Sat Jan 09, 2021 4:34 pm
Forum: Ideal Gases
Topic: reversing reactions
Replies: 80
Views: 387

### Re: reversing reactions

When you reverse the reaction, k is inverted so it would then be 1/k or k^-1
Sat Jan 09, 2021 4:31 pm
Forum: Ideal Gases
Topic: Kc vs Kp
Replies: 109
Views: 918

### Re: Kc vs Kp

You would use Kp.
Sat Jan 09, 2021 4:30 pm
Forum: Administrative Questions and Class Announcements
Topic: Recording the UA Workshops
Replies: 3
Views: 18

### Re: Recording the UA Workshops

I agree, that would be so helpful for people that have classes during the sessions.
Sat Jan 09, 2021 4:29 pm
Forum: Ideal Gases
Topic: Units of Temperature
Replies: 82
Views: 287

### Re: Units of Temperature

The temperature should be in Kelvins so that the units will cancel out.
Wed Jan 06, 2021 11:26 am
Forum: Ideal Gases
Topic: K and PV=nRT
Replies: 9
Views: 75

### K and PV=nRT

How do you know whether to use K=[P]/[R] or PV=nRT in problems involving partial pressure, because there were problems on the modules that used partial pressure, but K=[P]/[R] was used.
Sat Dec 12, 2020 12:59 am
Forum: Administrative Questions and Class Announcements
Replies: 9
Views: 106

### Re: Grading scale

I think the only difference with his grading scale is that a C- begins at 50% and the rest remains the same. So an A- would be 90%-92% and an A would be 93%-96% but I could be wrong.
Sat Dec 12, 2020 12:53 am
Forum: Amphoteric Compounds
Topic: Recognizing Amphoteric Substances
Replies: 8
Views: 67

### Recognizing Amphoteric Substances

Can someone please walk me through how to recognize or determine if a substance is amphoteric?
Sat Dec 12, 2020 12:40 am
Forum: Determining Molecular Shape (VSEPR)
Topic: Bond angles
Replies: 12
Views: 87

### Re: Bond angles

Yes, you should at least have a general idea, and sometimes after drawing out the 3D model you can figure out the bond angles.
Sat Dec 12, 2020 12:38 am
Forum: Calculating the pH of Salt Solutions
Topic: pH formula?
Replies: 46
Views: 934

### Re: pH formula?

pH formula is pH=-log[H+] and Im not sure if we need to know how it's derived, but another formula for pH is pH=14.00-pOH
Sat Dec 12, 2020 12:33 am
Forum: Administrative Questions and Class Announcements
Topic: Are all questions on the final multiple choices?
Replies: 29
Views: 145

### Re: Are all questions on the final multiple choices?

yes, all questions are multiple choice, each worth 6 point each, no partial credit
Sat Dec 05, 2020 6:49 pm
Forum: Administrative Questions and Class Announcements
Topic: Chem 14A Final
Replies: 21
Views: 181

### Re: Chem 14A Final

The questions are going to be distributed, but I think there will be more questions on The Quantum World since that was the largest section
Sat Dec 05, 2020 6:47 pm
Forum: Administrative Questions and Class Announcements
Topic: Extra Credit
Replies: 13
Views: 124

### Re: Extra Credit

I don’t think there will be any extra credit offered, possibly partial credit on final but I’m not sure.
Tue Dec 01, 2020 6:39 pm
Forum: Naming
Topic: Ferrate vs iron
Replies: 5
Views: 49

### Re: Ferrate vs iron

I think Ferrate is used when the overall compound has a negative charge and iron is used when the compound is positive.
Tue Dec 01, 2020 6:38 pm
Forum: Naming
Topic: Using ido or o
Replies: 24
Views: 136

### Re: Using ido or o

I believe that they are interchangeable and you can use either.
Tue Dec 01, 2020 6:36 pm
Forum: Administrative Questions and Class Announcements
Topic: Final exam (fall 2020 quarter)
Replies: 20
Views: 229

### Re: Final exam (fall 2020 quarter)

The final is going to be cumulative. I think since Quantum World was the largest section, it will appear the most on the exam.
Sat Nov 28, 2020 2:05 pm
Forum: Administrative Questions and Class Announcements
Topic: Class Grading Scale
Replies: 7
Views: 129

### Re: Class Grading Scale

I was wondering the same thing
Sat Nov 28, 2020 2:00 pm
Forum: Student Social/Study Group
Topic: Final Study
Replies: 32
Views: 199

### Re: Final Study

I've personally been watching YouTube videos on the earlier topics just to refresh and try to remember the things that we've already learned
Sat Nov 28, 2020 1:50 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Sapling Wk8 Q. 18, Determining Molecular Shape
Replies: 10
Views: 70

### Re: Sapling Wk8 Q. 18, Determining Molecular Shape

Yes, I believe that you read molecules from left to right
Sat Nov 28, 2020 1:48 pm
Forum: Student Social/Study Group
Topic: Midterm/Final Success?
Replies: 17
Views: 148

### Re: Midterm/Final Success?

I think doing the textbook questions help a lot, especially if you do them as you're learning the topics because its another way of testing what you've learned.
Sat Nov 28, 2020 1:44 pm
Forum: Student Social/Study Group
Topic: Midterm Exam Questions
Replies: 16
Views: 146

### Re: Midterm Exam Questions

I don't think exam questions would be answered on here, but I think you can either go to Dr. Lavelle's discussion sections or even in ta office hours and get any questions answered.
Sat Nov 21, 2020 7:36 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: 3d fills before or after 4s?
Replies: 7
Views: 59

### Re: 3d fills before or after 4s?

My TA said that you could write it either way but it flows better if you put 3d before 4s.
Sat Nov 21, 2020 7:35 pm
Forum: Quantum Numbers and The H-Atom
Topic: Names of different orbitals
Replies: 7
Views: 83

### Re: Names of different orbitals

They do, but I don't think we have to have them memorized, at least not for 14A
Sat Nov 21, 2020 7:33 pm
Forum: Student Social/Study Group
Topic: Post Midterm Blues
Replies: 71
Views: 609

### Re: Post Midterm Blues

I had this feeling after both Midterm 1 and 2 and I feel like its just the nerves that make you second guess. I was so worried after Midterm 1 and I ended up doing okay. Just try not to overthink or worry!
Sat Nov 21, 2020 7:30 pm
Forum: Student Social/Study Group
Topic: Finals!
Replies: 43
Views: 346

### Re: Finals!

I think it is cumulative
Sat Nov 21, 2020 7:29 pm
Forum: Administrative Questions and Class Announcements
Topic: Midterm 2 Grades
Replies: 6
Views: 142

### Re: Midterm 2 Grades

Im thinking sometime next week since that's Midterm 1 grades came out the week after.
Fri Nov 13, 2020 7:47 pm
Forum: Trends in The Periodic Table
Replies: 10
Views: 67

### Re: atomic radii

I don't think we need to know this for the midterm since it should be straightforward, but I was honestly wondering the same thing.
Fri Nov 13, 2020 7:39 pm
Forum: Administrative Questions and Class Announcements
Topic: Midtern #2
Replies: 6
Views: 39

### Re: Midtern #2

You'll definitely need the periodic table and scratch paper, I'm not sure how helpful the constants and equations worksheet will be, but I'd print it out just in case.
Fri Nov 13, 2020 7:35 pm
Forum: Student Social/Study Group
Replies: 110
Views: 1171

### Re: grade worries

Im definitely in the same boat, I've been trying to do calculations to try to figure out what grade I need to get on the second midterm and the final to get an A lol.
Fri Nov 13, 2020 7:30 pm
Forum: Lewis Structures
Topic: Drawing Lewis Structures on Midterm
Replies: 31
Views: 151

### Re: Drawing Lewis Structures on Midterm

I would think so, the lowest formal charge would be the most accurate, but maybe recognize multiple structures just in case.
Fri Nov 13, 2020 12:52 am
Forum: Lewis Structures
Topic: Formal Charge
Replies: 3
Views: 16

### Formal Charge

Is it necessary to put brackets and the charge outside of the Lewis structure if the formal charges are added to the atoms?
Fri Nov 06, 2020 10:21 am
Forum: Student Social/Study Group
Topic: Test Anxiety
Replies: 62
Views: 348

### Re: Test Anxiety

I am not sure if anyone struggles with test anxiety... if you do, what are some techniques you guys use to deal and control test anxiety? Thank you. I try to calm my self first by just breathing because I find that they first thing that happens to me is that my breathing starts becoming weird and t...
Fri Nov 06, 2020 10:11 am
Forum: Octet Exceptions
Topic: Exceptions
Replies: 9
Views: 52

### Re: Exceptions

I’m not sure about how many exceptions there are, the ones I know of are B, Al, and Be. The way to tell that they are exceptions is if there is no way for the middle atom to create and octet
Fri Nov 06, 2020 10:08 am
Forum: Student Social/Study Group
Topic: Halloween
Replies: 7
Views: 97

### Re: Halloween

I hung out with a couple of friends and we had a little painting party
Fri Nov 06, 2020 10:06 am
Forum: Student Social/Study Group
Topic: Favorite TV shows
Replies: 176
Views: 875

### Re: Favorite TV shows

My all time favorite show would be The Vampire Diaries, but childhood would be The Proud Family or Zoey 101
Wed Nov 04, 2020 10:27 am
Forum: Formal Charge and Oxidation Numbers
Topic: Formal Charge Equation
Replies: 16
Views: 72

### Formal Charge Equation

When using the formal charge equation, what does L represent, and how do I find it’s value?
Fri Oct 30, 2020 12:04 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: Electron Configuration Shorthand Question
Replies: 5
Views: 44

### Re: Electron Configuration Shorthand Question

It is because we are specifically using the noble gas configuration so you would use the most recent noble gas for your shorthand configuration in efforts to start with the highest amount of valence electrons, since they increase from left to right.
Fri Oct 30, 2020 11:58 am
Forum: Electron Configurations for Multi-Electron Atoms
Topic: Electron Configurations
Replies: 15
Views: 93

### Re: Electron Configurations

I think it's best to write it the long way because it's more specific so he can easily follow the configuration.
Fri Oct 30, 2020 10:15 am
Forum: DeBroglie Equation
Topic: p
Replies: 19
Views: 164

### Re: p

P represents momentum which is (mass)(velocity). It measures the quantity of motion.
Mon Oct 26, 2020 7:27 pm
Forum: Photoelectric Effect
Topic: Sapling Week 2,3,4 Q 9
Replies: 4
Views: 56

### Sapling Week 2,3,4 Q 9

As you may well know, placing metal objects inside a microwave oven can generate sparks. Two of your friends are arguing over the cause of the sparking, with one stating that the microwaves "herd" electrons into "pointy" areas of the metal object, from which the electrons jump fr...
Mon Oct 26, 2020 10:04 am
Forum: DeBroglie Equation
Topic: Sapling Question #19
Replies: 2
Views: 21

### Sapling Question #19

When using De Broglie’s equation to find velocity, is it necessary to change the wavelength of 750.0nm to m and the mass in g to kg?
Fri Oct 23, 2020 11:29 am
Forum: DeBroglie Equation
Topic: Rearranging De Broglie Equation
Replies: 17
Views: 116

### Re: Rearranging De Broglie Equation

Since de broglie’s equation is wavelength =h/mv, you multiple v to both sides then divide by wavelength to get v=h/m(wavelength)
Fri Oct 23, 2020 11:24 am
Forum: Heisenberg Indeterminacy (Uncertainty) Equation
Topic: Midterm 1
Replies: 18
Views: 206

### Re: Midterm 1

I believe it would be on the midterm. Since my TA said that everything from week 1 to Wednesday of week 3 is free game.
Fri Oct 23, 2020 11:21 am
Forum: SI Units, Unit Conversions
Topic: SI Conversions
Replies: 11
Views: 82

### Re: SI Conversions

I think it’s good to memorize them just in case, but I’m pretty sure they will be on the constants and formula sheet.
Fri Oct 23, 2020 11:14 am
Forum: General Science Questions
Topic: When to use sig figs
Replies: 19
Views: 112

### Re: When to use sig figs

I think the best way is to apply sig figs at the very end otherwise your answer might be off by a little
Fri Oct 23, 2020 11:12 am
Forum: Student Social/Study Group
Topic: How are you studying?
Replies: 203
Views: 1292

### Re: How are you studying?

For the midterm, I plan on reviewing using the audio visual videos, working through the textbook questions and also rewatching some lectures because I was confused on a few topics.
Fri Oct 16, 2020 10:56 am
Forum: Quantum Numbers and The H-Atom
Topic: Lecture 10/16
Replies: 4
Views: 70

### Re: Lecture 10/16

The negative when finding the difference in energy just shows that energy decreased and it was released as electromagnetic radiation, since there is no such thing as negative energy, so when using the E=hv formula, you take away the negative
Fri Oct 16, 2020 10:48 am
Forum: DeBroglie Equation
Topic: Units Used in De Broglie Equation
Replies: 2
Views: 38

### Re: Units Used in De Broglie Equation

Since joules is actually kg.m^2s^2, I think it’s okay to use either kg or meters, you’ll just get a different answer, but both answers are correct
Fri Oct 16, 2020 10:36 am
Forum: Properties of Electrons
Topic: energy levels
Replies: 4
Views: 66

### Re: energy levels

I believe it stays at n=2 because a jump from n=2 to n=1 requires the most amount of energy since the energy levels get closer and closer as they get higher, so like a jump from n=3 to n=2 requires less energy than a jump from n=2 to n=1, so if the electron cannot emit an equal or greater amount of ...
Wed Oct 14, 2020 10:10 am
Forum: Properties of Light
Topic: Finding kinetic energy
Replies: 3
Views: 66

### Re: Finding kinetic energy

Hi, for the mass you use the mass of an electron which is 9.109 x 10^-31. Your issue might be the speed, since it is in km/s you want to make sure that you convert it to m/s.
Mon Oct 12, 2020 10:43 am
Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
Topic: Atomic Spectra
Replies: 3
Views: 59

### Atomic Spectra

What formula is used to find the wavelength after finding delta E? Is it E=hc/wavelength or c=(wavelength)(v)?
Thu Oct 08, 2020 6:43 pm
Forum: General Science Questions
Replies: 4
Views: 64

Does anyone know where our grade will appear? Like will it be on ccle or somewhere else, because I know for some of my other courses the grades are posted on a different site?
Thu Oct 08, 2020 6:40 pm
Forum: Significant Figures
Topic: Sapling HW #4
Replies: 31
Views: 324

### Re: Sapling HW #4

The zeros are considered trailing since there's no decimal placed, so you would only count the 9 and 5 as significant, but if there were a decimal placed anywhere in the number, every number would be significant.
Wed Oct 07, 2020 1:54 pm
Forum: General Science Questions
Topic: E-Book
Replies: 3
Views: 72

### E-Book

Does anyone know how I can get to the actual digital textbook, like I see where the homework is but where do I go to find the textbook from there?
Wed Oct 07, 2020 1:32 pm
Forum: Significant Figures
Topic: Rounding Rule
Replies: 8
Views: 77

### Re: Rounding Rule

With significant figures, you round to the least amount of sig figs in the problem, unless the problem asks for an answer with a specific amount of decimal places.
Wed Oct 07, 2020 1:24 pm
Forum: Empirical & Molecular Formulas
Topic: Limiting Reactant Post-Module Q.18
Replies: 3
Views: 67

### Limiting Reactant Post-Module Q.18

The question states, "For the following equation , determine the limiting reagent if 21.4g NH3 is reacted with 42.5g of O2 4NH3 (g) + 5O2(g) ---> 4NO (g) + 6H2O(g) After doing the work I thought that NH3 was the limiting reagent but it came out as wrong, so if anyone can explain the correct way...

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