Search found 19 matches
- Sat Mar 16, 2019 8:20 pm
- Forum: Reaction Mechanisms, Reaction Profiles
- Topic: Final
- Replies: 3
- Views: 1529
Final
Does anyone have any last-minute advice for preparing for this final?
- Sat Mar 16, 2019 8:17 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: Platinum
- Replies: 5
- Views: 510
Platinum
What is the importance of platinum?
- Sat Mar 16, 2019 8:03 pm
- Forum: Gibbs Free Energy Concepts and Calculations
- Topic: FORMULAS
- Replies: 3
- Views: 529
FORMULAS
Does anyone have a master list of formulas and equations with the situations to use them in?
- Sun Mar 10, 2019 5:36 pm
- Forum: Zero Order Reactions
- Topic: Zero Order Reactions
- Replies: 3
- Views: 567
Zero Order Reactions
When is it possible to get a zero order reaction in real life?
- Sat Mar 02, 2019 1:49 pm
- Forum: Balancing Redox Reactions
- Topic: Problem 6N.7 Part A (7th Edition)
- Replies: 1
- Views: 238
Problem 6N.7 Part A (7th Edition)
In the solutions manual, it says that the half-oxidation equation is Cu2+ + 2e- >> Cu. Why is it not Cu >> Cu2+ + 2e- ?
- Thu Feb 28, 2019 2:41 pm
- Forum: Appications of the Nernst Equation (e.g., Concentration Cells, Non-Standard Cell Potentials, Calculating Equilibrium Constants and pH)
- Topic: Problem 6N.1 Part B
- Replies: 1
- Views: 254
Problem 6N.1 Part B
Can someone explain to me why n=2 instead of one? I'm a bit confused because there is only one electron for both half-reduction reactions.
- Sun Feb 24, 2019 10:26 pm
- Forum: Balancing Redox Reactions
- Topic: Salt Bridge
- Replies: 5
- Views: 456
Salt Bridge
What is the importance of a salt bridge?
- Sat Feb 23, 2019 5:35 pm
- Forum: Balancing Redox Reactions
- Topic: Standard Cell Potential
- Replies: 3
- Views: 403
Standard Cell Potential
In Lecture, Dr. Lavelle said that we shouldn't really use the equation that simply finds the difference between the cell potential of the cathode and the cell potential of the anode, but I forgot the reason why. Can someone explain it to me please?
- Wed Feb 20, 2019 3:16 pm
- Forum: Balancing Redox Reactions
- Topic: Cathode and Anode
- Replies: 1
- Views: 180
Cathode and Anode
Can someone explain to me why a cathode is always paired with the reduction reaction and why an anode is paired with the oxidation reaction? IS is because a reduction reaction gains an electron and an oxidation reaction loses an electron?
- Tue Feb 12, 2019 3:28 pm
- Forum: Concepts & Calculations Using First Law of Thermodynamics
- Topic: Definitions
- Replies: 1
- Views: 250
Definitions
Will we need to know the definition statements for enthalpy, entropy, etc. for the midterm. Or should we focus more on the equations/formulas?
- Sun Feb 03, 2019 9:42 pm
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: Bomb Calorimeter
- Replies: 4
- Views: 556
Bomb Calorimeter
I am a bit confused about a bomb calorimeter. Can someone explain what is happening inside the system?
- Sun Feb 03, 2019 9:27 pm
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: Midterm [ENDORSED]
- Replies: 49
- Views: 4871
Midterm [ENDORSED]
Does anyone have any advice on how I should prepare for the midterm?
- Fri Feb 01, 2019 12:12 pm
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: Midterm
- Replies: 4
- Views: 402
Midterm
I was reading through the syllabus and I noticed that the midterm date isn't listed. Does anyone know when the midterm exam will be?
- Sat Jan 26, 2019 9:24 pm
- Forum: Entropy Changes Due to Changes in Volume and Temperature
- Topic: Molar Entropy
- Replies: 3
- Views: 320
Molar Entropy
How does one know when a substance has a high molar entropy?
- Sat Jan 26, 2019 7:45 pm
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: Hess' Law Confirmation
- Replies: 3
- Views: 357
Hess' Law Confirmation
Just to confirm about Hess' Law, to calculate the total change in heat, we add the balanced equations and change of heat of both reactions?
- Sun Jan 20, 2019 8:53 pm
- Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
- Topic: Strong/Weak Acids and Bases
- Replies: 1
- Views: 231
Strong/Weak Acids and Bases
Where in the 7th edition textbook can I find a chart of strong/weak acids and bases?
- Tue Jan 15, 2019 2:35 pm
- Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
- Topic: Test Next Week
- Replies: 2
- Views: 248
Test Next Week
I am new to Lavelle's class and I was wondering how the tests are formatted and what should I expect? I heard that there's roughly 8 questions, but how should I prepare myself for it?
- Sat Jan 12, 2019 3:12 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Quadratic Equations
- Replies: 3
- Views: 322
Re: Quadratic Equations
The two possible answers for X are usually one negative and one positive solution. Always use the positive value because it is impossible to have a negative concentration.
- Wed Jan 09, 2019 6:45 pm
- Forum: Student Social/Study Group
- Topic: New to Lavelle
- Replies: 32
- Views: 5307
Re: New to Lavelle
I am also new to Lavelle and I was wondering how I should prepare for tests and midterms.