Search found 10 matches
- Mon Mar 13, 2017 2:16 pm
- Forum: *Cyclopropanes and Cyclobutanes
- Topic: Rotation of cycloalkanes
- Replies: 2
- Views: 1613
Rotation of cycloalkanes
I understand that cyclopropane does not rotate and cyclobutane does, but I don't understand why that is. Can someone help me understand this?
- Mon Mar 06, 2017 4:17 pm
- Forum: *Electrophiles
- Topic: Identifying the nucleophile or electrophile
- Replies: 2
- Views: 1455
Identifying the nucleophile or electrophile
I was still a little confused on the question he went over at the end of class. How can you tell if the positive or negative side of a molecule is stronger?
- Tue Feb 28, 2017 2:07 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3687302
- Tue Feb 21, 2017 12:20 am
- Forum: Administrative Questions and Class Announcements
- Topic: Quiz 2 Winter 2017
- Replies: 160
- Views: 25014
Re: Quiz 2 Winter 2017
Can someone explain why question 10 is false? I thought half-lives are always the same. You know this one is a second order reaction because rate=[A]^2, and if you set up two equations using the 2nd order integrated rate law (one for 1.0 M and 0.5 M and the other for 0.5 M and 0.25 M), you can solv...
- Tue Feb 14, 2017 5:49 pm
- Forum: Entropy Changes Due to Changes in Volume and Temperature
- Topic: Heat Capacity
- Replies: 3
- Views: 633
Re: Heat Capacity
Molar heat capacity also depends on the amount of a substance, while specific heat capacity does not.
- Wed Feb 08, 2017 9:10 pm
- Forum: General Rate Laws
- Topic: First-order reactions
- Replies: 2
- Views: 652
First-order reactions
Are first-order reactions only with reactions that have 1 reactant? I know he said we'd get to larger reactions later, but I was just wondering about this.
- Fri Feb 03, 2017 2:51 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3687302
Re: Post All Chemistry Jokes Here
What do you call a fish made of two sodium atoms?
2-Na!!!
2-Na!!!
- Sun Jan 29, 2017 8:47 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3687302
- Thu Jan 19, 2017 11:57 pm
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: Heat versus Work [ENDORSED]
- Replies: 3
- Views: 822
Re: Heat versus Work [ENDORSED]
Going off of this, how is it that Internal energy is a state function and work is not if ΔU = q + w? This may not be relevant, but I was confused about why this was during lecture.
- Fri Jan 13, 2017 10:11 am
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: Choosing a Method
- Replies: 2
- Views: 374
Choosing a Method
I'm still a little confused when you should use each type of method (Hess's Law, Bond enthalpies or standard enthalpies of formation). Is there a clear answer or is it more of a preference?