## Search found 13 matches

Sun Mar 19, 2017 9:34 am
Forum: *Constitutional and Geometric Isomers (cis, Z and trans, E)
Topic: Practice Problems
Replies: 23
Views: 2175

### Re: Practice Problems

What does it mean for a ring to be 8 membered?
Fri Mar 17, 2017 4:41 pm
Forum: *Alcohols
Topic: Numbering alcohols
Replies: 2
Views: 404

### Re: Numbering alcohols

I think you can do this as long as there is only single bonds, cause if there is a double bond, you have to identify both where the double bond is and where the alcohol group is, so they both can't be put in the front
Tue Mar 14, 2017 1:21 pm
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: Cell Diagram
Replies: 3
Views: 412

### Cell Diagram

Why would the cell diagram for the redox reaction: 2Ag(s) + Br2 --> 2AgBr(s) have the cell diagram
Ag(s)|AgBr(s)||Br-|Br2|Pt?
Why are both AgBr and Br- included?
Sun Mar 12, 2017 9:05 pm
Forum: *Constitutional and Geometric Isomers (cis, Z and trans, E)
Topic: Geometric isomers as line structures
Replies: 4
Views: 389

### Re: Geometric isomers as line structures

yes, but in a line structure, how do you know what is on the same side?
Sun Mar 12, 2017 6:50 pm
Forum: *Constitutional and Geometric Isomers (cis, Z and trans, E)
Topic: Geometric isomers as line structures
Replies: 4
Views: 389

### Geometric isomers as line structures

How can you tell whether two geometric isomers are cis or trans based on their line structures alone?
Sun Mar 12, 2017 6:22 pm
Forum: *Alcohols
Topic: Priority in Cyclos [ENDORSED]
Replies: 2
Views: 724

### Priority in Cyclos[ENDORSED]

When we are naming a compound with functional groups, double/triple bonds, and multiple substitients, how do we choose where to start numbering the carbons?
Sun Feb 26, 2017 7:48 pm
Forum: Thermodynamic Systems (Open, Closed, Isolated)
Topic: Midterm #3b
Replies: 2
Views: 352

### Midterm #3b

For this question, why is it not enough to say that entropy is negative because two different substances are combining into one, so disorder is therefore decreasing. What more could have been said to get full credit on this question?
Sat Feb 11, 2017 10:38 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: Positive or negative Ecell
Replies: 2
Views: 3191

### Positive or negative Ecell

How do we know when Ecell is supposed to be positive or negative? Does it only have to be positive when it directly says that its a galvanic cell?
Tue Feb 07, 2017 5:47 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: Homework question 14.21
Replies: 3
Views: 236

### Re: Homework question 14.21

So in Problem 14.19, how come it gives you that the cell potential was found to be -0.689? Is there a reason why it is allowed to be negative here, but not in question 21?
Mon Feb 06, 2017 10:29 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: Homework question 14.21
Replies: 3
Views: 236

### Homework question 14.21

How do you know when to use the positive or negative number for the anode? Is there a more definitive way than just choosing which ever way makes Eº positive?
Sun Feb 05, 2017 9:08 pm
Forum: Balancing Redox Reactions
Topic: Problem 14.5 in the homework
Replies: 1
Views: 240

### Problem 14.5 in the homework

For part a, I don't really understand how to balance this equation in a basic solution. How do you balance the H2O's and OH's?
Sun Jan 29, 2017 9:16 pm
Forum: Administrative Questions and Class Announcements
Topic: Quiz 1 Preparation Answers
Replies: 130
Views: 13381

### Re: Quiz 1 Preparation Answers

Kira_Maszewski_1B wrote:What equation do we use for work in #3?

you use the equation w = -nRT ln (V2/V1) because the reaction is reversible and isothermal
Sat Jan 21, 2017 6:59 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: kJ vs. kJ/mol [ENDORSED]
Replies: 1
Views: 205

### kJ vs. kJ/mol[ENDORSED]

How can you tell whether a question's answer is in kJ or kJ/mol? The solution manual seems to flip-flop between the two.

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