Search found 32 matches
- Sat Mar 16, 2019 10:31 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Yekan Final review slides and solutions 0312
- Replies: 8
- Views: 1244
Re: Yekan Final review slides and solutions 0312
Thank you, found this to be really good practice
- Sat Mar 16, 2019 10:30 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: Cell Diagram
- Replies: 4
- Views: 411
Re: Cell Diagram
Interesting, thank you for the response
- Sat Mar 16, 2019 9:35 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: Cell Diagram
- Replies: 4
- Views: 411
Re: Cell Diagram
What would be the reason to use Hg over Pt?
- Sat Mar 16, 2019 9:28 pm
- Forum: Appications of the Nernst Equation (e.g., Concentration Cells, Non-Standard Cell Potentials, Calculating Equilibrium Constants and pH)
- Topic: Vant Hoff equation on formula sheet
- Replies: 6
- Views: 1075
Re: Vant Hoff equation on formula sheet
You can also derive the Vant Hoff equation from the delta G standard equations on the constants and formulas sheet if that helps
- Sat Mar 16, 2019 9:24 pm
- Forum: Concepts & Calculations Using Second Law of Thermodynamics
- Topic: Free Expansion
- Replies: 3
- Views: 674
Free Expansion
How do we know if a reaction is undergoing free expansion?
- Sat Mar 16, 2019 9:05 pm
- Forum: Concepts & Calculations Using First Law of Thermodynamics
- Topic: Deriving Enthalpy Equations
- Replies: 3
- Views: 618
Deriving Enthalpy Equations
What is the best way to derive equations for enthalpy from the sheet of constants and formulas we are given on exams?
- Sat Mar 16, 2019 8:25 pm
- Forum: Student Social/Study Group
- Topic: Solutions for Tests 1 and 2
- Replies: 7
- Views: 1172
Re: Solutions for Tests 1 and 2
Some of the questions that were on the tests have been discussed on here in the relevant boards. If theres one in particular that youre interested in, you might be able to find a post about it
- Sat Mar 16, 2019 7:37 pm
- Forum: Gibbs Free Energy Concepts and Calculations
- Topic: Test 2 Q 7 [ENDORSED]
- Replies: 5
- Views: 993
Re: Test 2 Q 7 [ENDORSED]
I was wondering how to come to this conclusion, thank you
- Sat Mar 16, 2019 7:36 pm
- Forum: Van't Hoff Equation
- Topic: pH and van’t hoff
- Replies: 6
- Views: 1415
Re: pH and van’t hoff
Thank you, this was a big help in figuring out where I went wrong on the Vant Hoff problem on test 2
- Sat Mar 16, 2019 3:47 pm
- Forum: Arrhenius Equation, Activation Energies, Catalysts
- Topic: K1 vs K2
- Replies: 2
- Views: 422
Re: K1 vs K2
Thank you for the video, it was very instructive
- Sat Mar 16, 2019 3:23 pm
- Forum: Arrhenius Equation, Activation Energies, Catalysts
- Topic: Equation
- Replies: 9
- Views: 1300
Re: Equation
I thought for that equation that A ends up getting canceled out during the derivation and that's why it isn't present
- Sat Mar 16, 2019 2:58 pm
- Forum: Arrhenius Equation, Activation Energies, Catalysts
- Topic: 6th edition, 15.63
- Replies: 2
- Views: 314
Re: 6th edition, 15.63
I was very confused by this answer as well, is the consensus just that it was a solutions manual error?
- Sat Mar 16, 2019 2:34 pm
- Forum: First Order Reactions
- Topic: 6th edition 15.29
- Replies: 2
- Views: 459
Re: 6th edition 15.29
Ah I see, thank you for the explanation
- Fri Mar 15, 2019 8:58 pm
- Forum: First Order Reactions
- Topic: 6th edition 15.29
- Replies: 2
- Views: 459
6th edition 15.29
The solutions manual stats that the equation should be set up as ln(.015/.005). I'm confused as to why that is the order rather than (.005/.015). Would someone mind pointing me in the right direction
- Fri Mar 15, 2019 2:34 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3592585
Re: Post All Chemistry Jokes Here
In a sports relay race, a chemical kinetics specialist runs slowly, and his group loses the race.
When the chemical kinetics specialist is asked why he ran slowly, his reply was “I always wanted to be the significant rate determining step”.
When the chemical kinetics specialist is asked why he ran slowly, his reply was “I always wanted to be the significant rate determining step”.
- Fri Mar 15, 2019 2:30 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Final Questions
- Replies: 10
- Views: 1212
Re: Final Questions
I'm not sure, so far I have mostly just done homework questions to prepare for finals. Are the online assessments on Lavelle's website?
- Wed Mar 13, 2019 8:32 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Final Questions
- Replies: 10
- Views: 1212
Re: Final Questions
Where can you look at past finals?
- Wed Mar 13, 2019 8:31 pm
- Forum: General Science Questions
- Topic: Free Expansion
- Replies: 3
- Views: 596
Re: Free Expansion
Interesting, thank you for the responses. Real-world examples help me contextualize topics
- Sat Mar 09, 2019 8:30 pm
- Forum: General Science Questions
- Topic: Free Expansion
- Replies: 3
- Views: 596
Free Expansion
What are some real-world examples of free expansion?
- Fri Mar 08, 2019 11:16 am
- Forum: Calculating Work of Expansion
- Topic: Keywords for each equation
- Replies: 4
- Views: 715
Re: Keywords for each equation
That is good to know, thank you
- Fri Mar 08, 2019 11:14 am
- Forum: *Free Energy of Activation vs Activation Energy
- Topic: Definition of Transition State
- Replies: 7
- Views: 1594
Definition of Transition State
What is the best definition of a transition state? Is it just the peak of the activation energy curve?
- Tue Mar 05, 2019 8:36 pm
- Forum: Calculating Work of Expansion
- Topic: Keywords for each equation
- Replies: 4
- Views: 715
Keywords for each equation
I'm still struggling to know when to use the correct equation, would someone mind sharing keywords they look for to determine which equation to use?
- Mon Mar 04, 2019 8:07 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Week 9 HW
- Replies: 6
- Views: 647
Re: Week 9 HW
Thank you for the replies, Ill just do kinetics to be safe
- Mon Mar 04, 2019 11:10 am
- Forum: Administrative Questions and Class Announcements
- Topic: Discussion about Test questions
- Replies: 5
- Views: 659
Re: Discussion about Test questions
I suppose to be safe I will wait til the tests are returned. There is just one question in particular Id love some input on.
- Mon Mar 04, 2019 11:07 am
- Forum: Administrative Questions and Class Announcements
- Topic: Week 9 HW
- Replies: 6
- Views: 647
Week 9 HW
Can we do electrochem problems for week 9 homework?
- Sun Mar 03, 2019 8:40 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Discussion about Test questions
- Replies: 5
- Views: 659
Discussion about Test questions
Are we allowed to discuss questions that were on test 2?
- Mon Jan 21, 2019 3:10 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Units for equilibrium constants
- Replies: 2
- Views: 259
Re: Units for equilibrium constants
Thank you!
- Mon Jan 21, 2019 1:15 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Units for equilibrium constants
- Replies: 2
- Views: 259
Units for equilibrium constants
What are the units for equilibrium, acidity and base constants?
- Thu Jan 17, 2019 9:29 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Posts on Chemistry Community
- Replies: 3
- Views: 251
Re: Posts on Chemistry Community
Fair enough, that makes me feel a bit better. Thanks for the replies
- Thu Jan 17, 2019 4:25 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Posts on Chemistry Community
- Replies: 3
- Views: 251
Posts on Chemistry Community
I know that posting on chemistry community accounts for 30 points of our grade, but I am a little confused as to the specifics. Do we need to make 3 posts a week to get 3 points a week? Do we just need to make 30 posts over the course of the quarter? Does any post/reply count for points?
- Wed Jan 09, 2019 7:45 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: 6th edition, 11.23
- Replies: 4
- Views: 330
Re: 6th edition, 11.23
Thanks guys, I had a feeling I was missing something
- Wed Jan 09, 2019 7:32 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: 6th edition, 11.23
- Replies: 4
- Views: 330
6th edition, 11.23
the question used values of 500.0, 0.031, 0.495, 0.145 but the answer in the solutions manual gave the answer as 1.4.
I just wanted to make sure I brushed up on my sig figs but shouldn't the answer have 3 sig figs instead of two?
I just wanted to make sure I brushed up on my sig figs but shouldn't the answer have 3 sig figs instead of two?