## Search found 19 matches

Sat Mar 16, 2019 8:20 pm
Forum: Reaction Mechanisms, Reaction Profiles
Topic: Final
Replies: 3
Views: 366

### 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: 164

### 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: 289

### 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: 320

### 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: 99

### 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: 102

### 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: 143

### 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: 151

### 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: 53

### 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: 78

### 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: 186

### 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: 2075

### 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: 171

### 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: 110

### 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: 121

### 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: 122

### 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: 116

### 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
Replies: 3
Views: 139

### 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: 3929

### Re: New to Lavelle

I am also new to Lavelle and I was wondering how I should prepare for tests and midterms.

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