Search found 63 matches

by shouse1f
Thu Mar 14, 2019 9:10 pm
Forum: Administrative Questions and Class Announcements
Topic: Final
Replies: 18
Views: 837

Re: Final

I believe the newer material will be more emphasized
by shouse1f
Thu Mar 14, 2019 9:05 pm
Forum: Reaction Mechanisms, Reaction Profiles
Topic: Pre-equilibrium approach
Replies: 4
Views: 155

Re: Pre-equilibrium approach

Thanks!
by shouse1f
Wed Mar 13, 2019 8:19 pm
Forum: Reaction Mechanisms, Reaction Profiles
Topic: Pre-equilibrium approach
Replies: 4
Views: 155

Re: Pre-equilibrium approach

I know Lavelle mentioned the steady state approach but only went over the pre-equilibrium, so is the pre-equilibrium approach the only one we are expected to know?
by shouse1f
Wed Mar 13, 2019 8:14 pm
Forum: Student Social/Study Group
Topic: Lyndon's Review Session
Replies: 8
Views: 876

Re: Lyndon's Review Session

I haven't heard of anything of what he is calling it this time but his review session I believe is on Saturday
by shouse1f
Wed Mar 13, 2019 12:28 pm
Forum: Administrative Questions and Class Announcements
Topic: Final Questions
Replies: 10
Views: 549

Re: Final Questions

I believe there will be 8 questions with some having multiple parts similar to how the midterm was.
by shouse1f
Wed Mar 13, 2019 12:27 pm
Forum: Administrative Questions and Class Announcements
Topic: Final Exam Topics
Replies: 8
Views: 314

Re: Final Exam Topics

Whatever is on the syllabus can be tested and Lavelle did finish the syllabus today in class so I believe Friday's lecture will be used for review
by shouse1f
Wed Mar 13, 2019 12:25 pm
Forum: Administrative Questions and Class Announcements
Topic: Lyndon's Review Sheets
Replies: 9
Views: 730

Re: Lyndon's Review Sheets

I don't think he has posted anything yet but his review session is Saturday I believe so hopefully soon.
by shouse1f
Wed Mar 13, 2019 12:23 pm
Forum: Administrative Questions and Class Announcements
Topic: Sig Figs
Replies: 9
Views: 525

Re: Sig Figs

I believe that typically sig figs do matter on an exam and will be graded, so I would say to be safe always try to have the correct sig figs written.
by shouse1f
Tue Mar 12, 2019 12:08 pm
Forum: Reaction Mechanisms, Reaction Profiles
Topic: Intermediates
Replies: 8
Views: 263

Re: Intermediates

LorenzoDuvergne3I wrote:What else was discussed today? I unfortunately couldn't make it because I was feeling ill.

The pre-equilibrium approach and the relationship between temperature and reaction rate and activation energy and reaction rate
by shouse1f
Mon Mar 11, 2019 5:41 pm
Forum: General Science Questions
Topic: Final
Replies: 7
Views: 609

Re: Final

there is no curve for the class but in the syllabus, I believe it says there is a 50% required for a C- and I think he has mentioned before that after the finals grades are in he may make adjustments to the grading scale if he sees fit.
by shouse1f
Mon Mar 11, 2019 5:33 pm
Forum: Reaction Mechanisms, Reaction Profiles
Topic: Intermediates
Replies: 8
Views: 263

Re: Intermediates

today in lecture it was said that you can never have an intermediate in a rate law
by shouse1f
Mon Mar 11, 2019 5:32 pm
Forum: Reaction Mechanisms, Reaction Profiles
Topic: Meaning of k
Replies: 4
Views: 213

Re: Meaning of k

k is the rate constant and K is the equilibrium constant
by shouse1f
Mon Mar 11, 2019 5:31 pm
Forum: Reaction Mechanisms, Reaction Profiles
Topic: Frequency factor A
Replies: 7
Views: 283

Re: Frequency factor A

in lecture today it was explained that frequency factor, A, has to do with reactants must have correct orientation when they collide. Dr. Lavelle also mentioned when A increases k decreases
by shouse1f
Mon Mar 11, 2019 5:29 pm
Forum: Reaction Mechanisms, Reaction Profiles
Topic: Frequency Factor
Replies: 5
Views: 163

Re: Frequency Factor

from what was said in lecture frequency factor has to do with reactants having the correct orientation when they collide
by shouse1f
Sun Mar 10, 2019 1:14 pm
Forum: Reaction Mechanisms, Reaction Profiles
Topic: Microscopic reversibility
Replies: 4
Views: 144

Re: Microscopic reversibility

Microscopic reversibility is where one assumes that the reaction has the same pathway in the forward and reverse direction
by shouse1f
Sun Mar 10, 2019 12:55 pm
Forum: Administrative Questions and Class Announcements
Topic: Class Curve
Replies: 11
Views: 874

Re: Class Curve

In the syllabus, it says that 50% is required to get a C-, and a C- is passing and is what is required to move on to the next course in the series.
by shouse1f
Sun Mar 10, 2019 12:50 pm
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: Gibbs Free energy and photosynthesis
Replies: 4
Views: 205

Re: Gibbs Free energy and photosynthesis

Thank you, that makes sense
by shouse1f
Wed Mar 06, 2019 12:23 pm
Forum: General Rate Laws
Topic: Unique rate of reaction
Replies: 2
Views: 143

Re: Unique rate of reaction

could someone explain how you go about solving for the unique rate using the equation I was a bit confused with how the solutions manual showed how to for this same homework question
by shouse1f
Wed Mar 06, 2019 12:21 pm
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: Gibbs Free energy and photosynthesis
Replies: 4
Views: 205

Gibbs Free energy and photosynthesis

On test 2 there was a question regarding if delta G was greater than, equal to or less than zero for the photosynthesis of glucose, could someone explain why the answer was that delta G <0
by shouse1f
Wed Mar 06, 2019 12:17 pm
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: Test #2
Replies: 10
Views: 414

Re: Test #2

you should get it back in your discussion section this week
by shouse1f
Wed Mar 06, 2019 12:16 pm
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: Test 2
Replies: 7
Views: 339

Re: Test 2

On test 2 for another part of the same question it asked which 2 species would give the largest E cell, how do you determine this?
by shouse1f
Sun Feb 24, 2019 8:02 pm
Forum: Administrative Questions and Class Announcements
Topic: What topics are going to be on Test 2?
Replies: 4
Views: 151

Re: What topics are going to be on Test 2?

test 2 covers Gibb's free energy and electrochemistry excluding the Nernst equation and I believe there is a post on the class website about the topics as well.
by shouse1f
Wed Feb 13, 2019 1:01 pm
Forum: Administrative Questions and Class Announcements
Topic: Midterm Homework Questions
Replies: 2
Views: 165

Re: Midterm Homework Questions

Everything that has been covered until Gibb's free energy can be tested, Gibb's free energy will not be included
by shouse1f
Wed Feb 13, 2019 12:59 pm
Forum: Administrative Questions and Class Announcements
Topic: Week 6/7 homework
Replies: 2
Views: 165

Re: Week 6/7 homework

I think any topic is fair game for homework like you can do previous topic practice problems for week 6 and week 7 and probably whatever is covered Friday
by shouse1f
Mon Feb 11, 2019 6:23 pm
Forum: Administrative Questions and Class Announcements
Topic: Test 1 Solutions
Replies: 4
Views: 236

Re: Test 1 Solutions

Last quarter solutions weren't offered so I would assume its the same this time as well
by shouse1f
Mon Feb 11, 2019 6:22 pm
Forum: Administrative Questions and Class Announcements
Topic: Practice Midterm
Replies: 3
Views: 206

Re: Practice Midterm

Neil Hsu 2A wrote:Last quarter in 14A, TA/UA Lyndon always had a midterm review/practice midterm with a funky name. Does anyone know if there is one this midterm; if so, what is it called. Thanks!

I think its called Hotdog this time
by shouse1f
Mon Feb 11, 2019 6:21 pm
Forum: Administrative Questions and Class Announcements
Topic: Midterm
Replies: 6
Views: 246

Re: Midterm

Lavelle said in lecture that everything up until before Gibb's free energy which was covered on Friday will be on the midterm
by shouse1f
Mon Feb 11, 2019 6:19 pm
Forum: Administrative Questions and Class Announcements
Topic: Test 3
Replies: 10
Views: 454

Re: Test 3

Jchellis 1I wrote:We only have two tests this quarter for 14B though, right? Wasn't it changed?

I believe we only have the 2 tests in discussion this quarter for 14B
by shouse1f
Mon Feb 11, 2019 6:18 pm
Forum: Administrative Questions and Class Announcements
Topic: Midterm Review
Replies: 14
Views: 503

Re: Midterm Review

I believe in addition to the review sessions offered outside class the lectures this week before the midterm will also be review
by shouse1f
Mon Jan 21, 2019 5:42 pm
Forum: Ideal Gases
Topic: Concentration or Partial Pressure
Replies: 13
Views: 323

Re: Concentration or Partial Pressure

Shuyi Yu 1B wrote:When do we use concentration to find the equilibrium constant and when do we use partial pressure to find equilibrium constant? Will the question ask for one of the two specifically?

the question should normally specify which you should use
by shouse1f
Mon Jan 21, 2019 5:37 pm
Forum: Administrative Questions and Class Announcements
Topic: Number of questions on test one [ENDORSED]
Replies: 39
Views: 18475

Re: Number of questions on test one [ENDORSED]

Louis Zhao 4C wrote:Is the test format multiple choice, free response or a mixture of both?

I believe the test will be all free response that is how the tests in discussion were formatted for 14a
by shouse1f
Mon Jan 21, 2019 5:35 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Temperature for Equilibrium
Replies: 4
Views: 141

Re: Temperature for Equilibrium

I believe most equilibrium expressions are at 25 C if not stated otherwise
by shouse1f
Mon Jan 21, 2019 5:32 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Strong acids and bases
Replies: 4
Views: 187

Re: Strong acids and bases

I think it would definitely be beneficial to memorize the common strong acid and bases.
by shouse1f
Sat Dec 08, 2018 2:01 pm
Forum: Interionic and Intermolecular Forces (Ion-Ion, Ion-Dipole, Dipole-Dipole, Dipole-Induced Dipole, Dispersion/Induced Dipole-Induced Dipole/London Forces, Hydrogen Bonding)
Topic: boiling point
Replies: 5
Views: 525

Re: boiling point

stronger intermolecular forces mean a high boiling point so whichever molecule has stronger forces, which in this case is NH3, will have a high boiling point.
by shouse1f
Sat Dec 08, 2018 1:58 pm
Forum: Amphoteric Compounds
Topic: What makes something amphoteric?
Replies: 6
Views: 470

Re: What makes something amphoteric?

something that is amphoteric has both basic and acidic character, which means it can accept an e- pair or donate one. Water is a common amphoteric substance
by shouse1f
Sat Dec 08, 2018 1:54 pm
Forum: Amphoteric Compounds
Topic: Difference between amphoteric and amphiprotic?
Replies: 4
Views: 198

Re: Difference between amphoteric and amphiprotic?

amphoteric: can act as either a base or an acid
amphiprotic: can donate or accept a proton
by shouse1f
Sat Dec 08, 2018 1:48 pm
Forum: Administrative Questions and Class Announcements
Topic: Final
Replies: 11
Views: 534

Re: Final

Saima Salam 3J wrote:I also had a question about the final. Does anyone know how many questions would be on the final? Would it be similar to the midterm (8 questions)?

Lavelle said the final would be 8 questions, and I think it will be fairly similar to the midterm in that each question could have several parts to it.
by shouse1f
Sat Dec 08, 2018 1:45 pm
Forum: Naming
Topic: Regarding the test... [ENDORSED]
Replies: 12
Views: 4427

Re: Regarding the test... [ENDORSED]

I believe that we can still be tested on them since they were covered in lecture
by shouse1f
Sat Dec 08, 2018 1:42 pm
Forum: Administrative Questions and Class Announcements
Topic: About the test
Replies: 8
Views: 457

Re: About the test

Brianna Brockman 3C wrote:All the stuff prior to the most recent test last week... can we assume that if it hasn't been tested in the tests or midterm that it won't be on the final? Or is literally everything fair game?

anything from the syllabus can be on the final
by shouse1f
Sat Dec 08, 2018 1:38 pm
Forum: Administrative Questions and Class Announcements
Topic: Instructor Evaluations
Replies: 4
Views: 208

Re: Instructor Evaluations

Jchellis 1I wrote:Is this worth points?

I don't believe it is worth any points
by shouse1f
Sun Dec 02, 2018 9:09 pm
Forum: Lewis Acids & Bases
Topic: Bronsted vs. Lewis
Replies: 3
Views: 113

Re: Bronsted vs. Lewis

A bronsted acid is a proton donor and a bronsted base is a proton acceptor. A lewis acid is an electron acceptor and a lewis base is a electron donor.
by shouse1f
Sun Dec 02, 2018 9:04 pm
Forum: Lewis Acids & Bases
Topic: acid names
Replies: 8
Views: 272

Re: acid names

I'm not sure but it would probably be good to know the common ones like acetic acid and it wouldn't hurt to learn other ones as well.
by shouse1f
Sun Dec 02, 2018 9:01 pm
Forum: Lewis Acids & Bases
Topic: Lewis and Bronsted
Replies: 8
Views: 312

Re: Lewis and Bronsted

A lewis acid is an electron acceptor and a bronsted acid is a proton donor.
A lewis base is an electron donor and a bronsted base is a proton acceptor.
by shouse1f
Sat Nov 24, 2018 8:58 pm
Forum: Hybridization
Topic: Regions of electron density
Replies: 6
Views: 253

Re: Regions of electron density

yes regions of electron density around the central atom equal the number of hybrid orbitals.
by shouse1f
Sat Nov 24, 2018 8:49 pm
Forum: Hybridization
Topic: Test 3
Replies: 8
Views: 326

Re: Test 3

yes I believe hybridization will be on test 3
by shouse1f
Sat Nov 24, 2018 8:41 pm
Forum: Hybridization
Topic: Sigma/Pi Bonds
Replies: 5
Views: 168

Re: Sigma/Pi Bonds

what is the significance of sigma/pi bonds?
by shouse1f
Sun Nov 18, 2018 3:43 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: 4 regions of electron density
Replies: 3
Views: 154

Re: 4 regions of electron density

are lone pairs and bonding pairs both considered regions of electron density?
by shouse1f
Sun Nov 18, 2018 3:40 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: lone pairs
Replies: 11
Views: 308

Re: lone pairs

how do lone pairs affect the shape and repulsion in a molecule
by shouse1f
Sun Nov 18, 2018 3:36 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Test 3
Replies: 19
Views: 567

Re: Test 3

I believe we have to memorize them, but I think doing more practice problems will help to become more familiar with them.
by shouse1f
Sun Nov 11, 2018 7:23 pm
Forum: Octet Exceptions
Topic: electron affinity
Replies: 6
Views: 254

Re: electron affinity

are electron affinity and electronegativity related?
by shouse1f
Sun Nov 11, 2018 7:17 pm
Forum: Formal Charge and Oxidation Numbers
Topic: Formal Charge
Replies: 11
Views: 406

Re: Formal Charge

the formal charge being zero means that that is most stable structure for the molecule
by shouse1f
Sun Nov 11, 2018 7:15 pm
Forum: Formal Charge and Oxidation Numbers
Topic: Formal Charge Equation
Replies: 13
Views: 2795

Re: Formal Charge Equation

the formula for formal charge is FC= valence - (lone pairs + (shared/2))
by shouse1f
Sun Oct 21, 2018 7:47 pm
Forum: Quantum Numbers and The H-Atom
Topic: test 2 topics
Replies: 3
Views: 199

Re: test 2 topics

only the topics covered up to friday's lecture will be on test 2
by shouse1f
Sun Oct 21, 2018 7:47 pm
Forum: Quantum Numbers and The H-Atom
Topic: spin part of orbitals?
Replies: 5
Views: 197

Re: spin part of orbitals?

is spin related to a specifc quantum number?
by shouse1f
Sun Oct 21, 2018 7:41 pm
Forum: Quantum Numbers and The H-Atom
Topic: Principal Quantum Number (n)
Replies: 3
Views: 140

Re: Principal Quantum Number (n)

n determines energy and shell size and the other quantum numbers l and ml determine shape and orientation.
by shouse1f
Sun Oct 14, 2018 7:10 pm
Forum: Einstein Equation
Topic: Einstein's Equation: E=hv
Replies: 11
Views: 617

Re: Einstein's Equation: E=hv

h is Planck's constant, which is 6.63*10^-34 J*seconds and I believe it will be given on the formula sheet for tests.
by shouse1f
Sun Oct 14, 2018 7:08 pm
Forum: Einstein Equation
Topic: Combining E=hv and c=ƛv [ENDORSED]
Replies: 7
Views: 1194

Re: Combining E=hv and c=ƛv [ENDORSED]

Will the value of c normally be given for use of the equation E=hc/ƛ?
by shouse1f
Sun Oct 14, 2018 7:06 pm
Forum: Einstein Equation
Topic: Planck's Constant Value [ENDORSED]
Replies: 7
Views: 2963

Re: Planck's Constant Value [ENDORSED]

since I think the value is usually given I would use whichever they give.
by shouse1f
Sun Oct 07, 2018 3:18 pm
Forum: General Science Questions
Topic: Periodic Table
Replies: 16
Views: 868

Re: Periodic Table

I typically use the exact number written on the table and wait to round anything until the very end.
by shouse1f
Sun Oct 07, 2018 3:14 pm
Forum: General Science Questions
Topic: Rusty on High School Chem [ENDORSED]
Replies: 197
Views: 139005

Re: Rusty on High School Chem [ENDORSED]

does anyone have any recommendations on resources to use to brush up on units and unit conversions?
by shouse1f
Sat Oct 06, 2018 9:21 pm
Forum: SI Units, Unit Conversions
Topic: Standard SI Unit, Question E1
Replies: 3
Views: 255

Re: Standard SI Unit, Question E1

is pm a commonly used unit?

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