Search found 11 matches
- Sun Mar 19, 2017 11:56 am
- Forum: *Constitutional and Geometric Isomers (cis, Z and trans, E)
- Topic: Practice Problems
- Replies: 23
- Views: 4215
Re: Practice Problems
Goodluck on the final everyone!
- Mon Mar 13, 2017 12:45 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Final Exam points
- Replies: 7
- Views: 1722
Re: Final Exam points
Following up on on the mention about the points for posting on Chemistry Community, does anyone know if posting twice one week could replace the point of another week of not posting? I wasn't able to post last week bc I didn't have Wi-Fi at home and my phone wasn't working. thanks in advance! same ...
- Wed Mar 08, 2017 4:38 pm
- Forum: *Alkanes
- Topic: Line Structures
- Replies: 1
- Views: 448
Re: Line Structures
No as long as there's the correct amount of molecules/atoms in the structure!
- Fri Mar 03, 2017 9:56 am
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3591601
Re: Chemistry Jokes
Xinjie Su 2J wrote:One property of liquid is that it can fit into containers of any shape and automatically takes up all the space.
So...cat is a liquid!!
This gives me so much joy! Such cute little kitties.
- Wed Feb 22, 2017 1:04 am
- Forum: Administrative Questions and Class Announcements
- Topic: Quiz 2 Winter 2017
- Replies: 160
- Views: 24740
Re: Quiz 2 Winter 2017
So are we being quiz on knowing Activation energy? If so, does the equation ln[k2/k1]=Ea/R ((1/t2)-(1/T1)) work for all rate laws?
- Tue Feb 21, 2017 9:20 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Quiz 2 Winter 2017
- Replies: 160
- Views: 24740
Re: Quiz 2 Winter 2017
Can someone please help me with #3? I used the integrated rate law for first order and I got t=205 seconds For #3, it is a first order reaction, so you use the corresponding equation ln[A] = -kt + ln[A0] so, ln(.33) = -(.0068)t + ln(.75) ln(.33/.75) = -.0068t t = ln(.33/.75)/-.0068 t = 120 sec Than...
- Sat Feb 18, 2017 7:00 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3591601
Re: Post All Chemistry Jokes Here
too cute!
- Fri Feb 10, 2017 12:54 pm
- Forum: Interesting Applications: Rechargeable Batteries (Cell Phones, Notebooks, Cars), Fuel Cells (Space Shuttle), Photovoltaic Cells (Solar Panels), Electrolysis, Rust
- Topic: Differences [ENDORSED]
- Replies: 1
- Views: 554
Differences [ENDORSED]
Hello! Can someone tell me the difference between
-Potential Difference (E˚cell= E˚cathode-E˚anode) and
- Cell Potential (E˚=E˚cathode-E˚anode)
-Potential Difference (E˚cell= E˚cathode-E˚anode) and
- Cell Potential (E˚=E˚cathode-E˚anode)
- Sun Jan 29, 2017 10:43 pm
- Forum: General Science Questions
- Topic: Sig Figs
- Replies: 5
- Views: 1113
Re: Sig Figs
I also heard that we do NOT consider temperature when applying sig figs. Is this true? For example, say all the given units are in 4 sig figs and temperature is in 3, does our end calculation have three or four sig figs?
- Sun Jan 22, 2017 5:20 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3591601
Re: Post All Chemistry Jokes Here
Q: What element is derived from a Norse [censored]?
A: Thorium.
A: Thorium.
- Fri Jan 13, 2017 3:40 pm
- Forum: Phase Changes & Related Calculations
- Topic: Most Helpful Resource
- Replies: 14
- Views: 2524
Re: Most Helpful Resource
I believe AAP helps a lot! I had it last quarter and felt it was a life savior, especially because I felt required to go. The program takes attendance and there in small groups. However, I think the best action to do is try out all at least once and see which system works best for you.