Search found 32 matches
- Sun Mar 17, 2019 8:19 pm
- Forum: General Rate Laws
- Topic: pseudo rate laws
- Replies: 4
- Views: 676
Re: pseudo rate laws
The overall order of the pseudo-reaction is dependent on the order of the species with the highest concentration.
- Sun Mar 17, 2019 8:13 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
So the equation wasn’t on the equations sheet right? Since we had to derive it.
- Sat Mar 16, 2019 8:37 pm
- Forum: Arrhenius Equation, Activation Energies, Catalysts
- Topic: Activation energy vs free energy of activation
- Replies: 1
- Views: 362
Activation energy vs free energy of activation
What is the difference between activation energy and free energy of activation?
- Sat Mar 16, 2019 1:52 am
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Equalibrium Constants and Solubility
- Replies: 1
- Views: 1237
Equalibrium Constants and Solubility
How can we use equilibrium constants to predict solubility?
- Fri Mar 15, 2019 11:04 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Past Finals
- Replies: 4
- Views: 865
Past Finals
What are different ways to access past finals?
- Fri Mar 15, 2019 11:03 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Deriving
- Replies: 3
- Views: 687
Deriving
So I’m really confused on what level of derivation we’re expected to do on the final. I’d expect we’d only have to derive equations if the one that we need isn’t on the equation sheet?
- Fri Mar 15, 2019 11:01 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Collision theory
- Replies: 1
- Views: 410
Collision theory
Dud we ever go over the collision theory?
- Tue Mar 12, 2019 3:11 am
- Forum: General Rate Laws
- Topic: Zero Order Reactions
- Replies: 4
- Views: 403
Zero Order Reactions
Is saying a reaction in which the rate is independent of the concentration the same thing as saying the concentration of a reactant is independent of the rate?
- Sun Mar 10, 2019 9:25 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Final Questions
- Replies: 10
- Views: 1215
Final Questions
How many questions will there be on the final?
- Sun Mar 10, 2019 9:24 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: Order for Cell Diagram
- Replies: 4
- Views: 571
Re: Order for Cell Diagram
Anode half reaction is on the left side of the double line with the molecule losing electrons on the left side of the single line. The cathode half reaction is on the right side of the double line with the molecule gaining the electrons on the left side of the single line.
- Sun Mar 10, 2019 9:06 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Morris Review
- Replies: 4
- Views: 788
Re: Morris Review
He said he will be posting his slides on here soon. So look out for those.
- Mon Mar 04, 2019 1:53 am
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: E cell spontaneity
- Replies: 5
- Views: 605
E cell spontaneity
When E(cell) is less than 0, the reverse cell reaction is spontaneous. Is it valid to say that the “forward reaction is not spontaneous”
- Mon Mar 04, 2019 1:46 am
- Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
- Topic: Endergonic vs. Endothermic
- Replies: 6
- Views: 1933
Re: Endergonic vs. Endothermic
“Gonic” refers to change in Gibbs free energy and “thermic” refers to change in enthalpy. When delta G is less that 0 it is spontaneous and exergonic and when it is greater than 0 it is not spontaneous and endergonic
- Mon Mar 04, 2019 1:41 am
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: Pt
- Replies: 14
- Views: 1364
Re: Pt
I noticed in the solutions manual that pt was added when there were 2 aqueous solutions in the anode or cathode. And when there was one gas and one aqueous solution.
- Wed Feb 27, 2019 12:40 am
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: chapter 6O??
- Replies: 2
- Views: 264
Re: chapter 6O??
We only need to know “up to but not including Nernst equation”
- Wed Feb 27, 2019 12:34 am
- Forum: Gibbs Free Energy Concepts and Calculations
- Topic: Thermodynamic Stability
- Replies: 2
- Views: 327
Thermodynamic Stability
Is it necessary to know the thermodynamic tendencies of a substance in regards to their stability and whether they are labile or nonlabile?
- Wed Feb 27, 2019 12:30 am
- Forum: Gibbs Free Energy Concepts and Calculations
- Topic: Example 19.14 (6th edition)
- Replies: 1
- Views: 125
Example 19.14 (6th edition)
In this example in the textbook the first step of solving the problem was finding the standard enthalpy of formation in which they multiplied by the number of moles. However, when they applied the value they found into Gibb’s equation, they multiplied by the number of miles again. Why is that?
- Sun Feb 17, 2019 11:22 pm
- Forum: Student Social/Study Group
- Topic: Best Midterm Review
- Replies: 7
- Views: 768
Best Midterm Review
What type of reviews did you guys find more beneficial. I attended a few peer learning sessions and midterm review sessions, but I was wondering which ones you guys thought helped the most so I can try to invest more time when it comes to the final.
- Sun Feb 17, 2019 11:20 pm
- Forum: Student Social/Study Group
- Topic: Midterms
- Replies: 5
- Views: 579
Midterms
Is regrading normally allowed on midterms?
- Sun Feb 17, 2019 11:09 pm
- Forum: Concepts & Calculations Using First Law of Thermodynamics
- Topic: Constants abs Equations Worksheet
- Replies: 2
- Views: 348
Constants abs Equations Worksheet
Are all the equations on the worksheet currently going to be all the ones we are given for the rest of the quarter or is there a possibility of more being added?
- Fri Feb 08, 2019 12:48 am
- Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
- Topic: Molar Heat Capacity
- Replies: 3
- Views: 457
Re: Molar Heat Capacity
To expand on the previous two replies, the book gave the example of argon which has a constant volume heat capaccitg of 12.8, so when using the equation, you get 12.8 + 8.3= 21.1 for the constant pressure value. That is 65% greater than the constant volume value.
- Fri Feb 08, 2019 12:38 am
- Forum: Administrative Questions and Class Announcements
- Topic: Midterm Review Sessions
- Replies: 1
- Views: 361
Midterm Review Sessions
Are study tools or worksheets given at the midterm review sessions?
- Fri Feb 08, 2019 12:37 am
- Forum: Administrative Questions and Class Announcements
- Topic: Degeneracy on the Midterm [ENDORSED]
- Replies: 1
- Views: 379
Degeneracy on the Midterm [ENDORSED]
There seemed to be a lot of mixed of answers when students asked what level of degeneracy problems will be on the midterm, if any at all. So how familiar should we be with denegeracy?
- Sun Feb 03, 2019 11:50 pm
- Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
- Topic: Work done by expansion
- Replies: 3
- Views: 341
Work done by expansion
When calculating work, the equation is w= -p *deltaV, what is the reason behind pressure being negative?
- Sun Feb 03, 2019 11:45 pm
- Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
- Topic: Closed System with a Piston
- Replies: 2
- Views: 299
Closed System with a Piston
How does a system doing work on its surrounding (piston moving out) relate to the ideal gas law?
- Sun Feb 03, 2019 11:36 pm
- Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
- Topic: Entropy
- Replies: 3
- Views: 369
Re: Entropy
Lavelle’s main point was that they are equal because there is no change in volume!
- Sat Jan 19, 2019 12:19 am
- Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
- Topic: acids and bases
- Replies: 2
- Views: 260
Re: acids and bases
Other than understanding, when given the Ka/Kb, the greater the Ka(or Kb) the stronger than acid then it is just best to memorize them. And since there aren't many it should be easy and soon enough you'll be able to easily identify a strong acid or base.
- Sat Jan 19, 2019 12:14 am
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Test 1
- Replies: 6
- Views: 586
Re: Test 1
During a peer learning session, the UA said that there are around 7 questions with multiple parts and they highly reflect the hardest problems of the homework he assigned.
- Sat Jan 19, 2019 12:10 am
- Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
- Topic: the word shifted
- Replies: 3
- Views: 335
Re: the word shifted
I believe he still prefers if we use the term "favors." So, when more reactant is added to a reaction, more product will form so the reaction will favor the products.
- Sat Jan 12, 2019 11:41 pm
- Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
- Topic: 5.33
- Replies: 2
- Views: 186
Re: 5.33
An increase in the equilibrium constant suggests the reaction is favoring the products. In order to produce more product, the reaction requires heat which makes it endothermic
- Sat Jan 12, 2019 11:35 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Partial Pressure and Concentration [ENDORSED]
- Replies: 3
- Views: 236
Partial Pressure and Concentration [ENDORSED]
Might be a silly question, but will there ever be an instance where partial pressure is given for one part of a chemical equation then the concentration is given for another part? If so how would you solve for one or the other?
- Sat Jan 12, 2019 11:30 pm
- Forum: Ideal Gases
- Topic: Homework Week 2
- Replies: 10
- Views: 1039
Homework Week 2
I understood that the homework for week 1 was due in Friday after lecture. Is the second week of homework due during discussion? So if I have discussion on Tuesday, is it due Tuesday for me?