Search found 13 matches
- Sun Mar 19, 2017 12:52 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Naming priority
- Replies: 3
- Views: 935
Re: Naming priority
The -OH group is a functional group, which is prioritized before double/triple bonds. Substituents like alkyls are even lower priority.
- Tue Mar 14, 2017 1:31 pm
- Forum: *Alkanes
- Topic: Nomenclature
- Replies: 3
- Views: 715
Re: Nomenclature
I feel like it would be most important to know neo- and iso-, probably not so much for the other ones listed in the course reader. I remember Dr. Lavelle saying that some of the common names are actually not commonly used anymore (like vinyl I think).
- Tue Mar 07, 2017 2:48 am
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3622322
Re: Post All Chemistry Jokes Here
What do you call iron blowing in the wind?
Febreeze
Febreeze
- Mon Feb 27, 2017 7:47 pm
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: Midterm Problem 1A
- Replies: 1
- Views: 625
Re: Midterm Problem 1A
The question asks for standard enthalpy of formation, which is always going to be kJ/mol. By definition, standard enthalpy of formation is "the change in enthalpy when one mole of a substance in the standard state (1 atm of pressure and 298.15 K) is formed from its pure elements under the same ...
- Tue Feb 21, 2017 10:17 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Quiz 2 Winter 2017
- Replies: 160
- Views: 24840
Re: Quiz 2 Winter 2017
604735966 wrote:As for number 7, when do we know to use the rearranged integrated rate law and when to use the differential rate law?
You use the integrated rate law when time is involved.
- Tue Feb 21, 2017 2:30 am
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3622322
Re: Post All Chemistry Jokes Here
What was NaCl arrested for?
A salt.
A salt.
- Tue Feb 14, 2017 10:10 pm
- Forum: Third Law of Thermodynamics (For a Unique Ground State (W=1): S -> 0 as T -> 0) and Calculations Using Boltzmann Equation for Entropy
- Topic: Midterm Winter 2013 problem 5B
- Replies: 10
- Views: 1812
Re: Midterm Winter 2013 problem 5B
Chiao-Wei Cheng 3e wrote:Correct if I'm wrong, I think molar mass is related to molecules quantity, related to the W in S=klnW. Therefore, entropy will increase with the increase of the molar mass.
W is just (# of orientations)^(# of particles), so I don't think W has to do with the molar mass of one single molecule
- Tue Feb 14, 2017 2:49 am
- Forum: Entropy Changes Due to Changes in Volume and Temperature
- Topic: midterm 2015 #4&5 B
- Replies: 3
- Views: 869
Re: midterm 2015 #4&5 B
It comes from Cv = (3/2)R, given in the formula sheet. It's the molar heat capacity at constant volume for a monoatomic ideal gas.
- Tue Feb 07, 2017 7:45 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3622322
Re: Post All Chemistry Jokes Here
How do you make 24-molar solution?
Put artificial teeth in water.
Put artificial teeth in water.
- Tue Jan 31, 2017 11:21 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3622322
Re: Post All Chemistry Jokes Here
What is a cation afraid of?
A dogion.
A dogion.
- Thu Jan 26, 2017 4:18 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3622322
Re: Post All Chemistry Jokes Here
H2O is water and H2O2 is hydrogen peroxide. What is H2O4?
Drinking.
Drinking.
- Wed Jan 18, 2017 3:39 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3622322
Re: Post All Chemistry Jokes Here
Two chemists go into a bar. The first one says "I think I'll have an H2O." The second one says "I think I'll have an H2O too" — and he died.
- Wed Jan 11, 2017 7:57 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3622322
Re: Post All Chemistry Jokes Here
I would never try to poison you
Now eat your Pb and jelly sandwich
Now eat your Pb and jelly sandwich