Search found 12 matches
- Thu Mar 16, 2017 8:27 pm
- Forum: *Alkanes and Substituted Alkanes (Staggered, Eclipsed, Gauche, Anti, Newman Projections)
- Topic: Gauche conformations
- Replies: 2
- Views: 743
Re: Gauche conformations
To elaborate, at a UA session today, the UA explained that if the two substituents are "gauche" to each other in a stable conformation, that means that they're next to each other on the Newman projection. (I think they still follow the 60 or 300 degree rule though.)
- Thu Mar 16, 2017 8:20 pm
- Forum: *Ketones
- Topic: Question 2.26 in Organic textbook
- Replies: 1
- Views: 1222
Question 2.26 in Organic textbook
For Question 2.26 (Page 98), I had written the answer as 3,3-dimethylpentan-2-one , but the answer says 3,3-dimethyl-2-pentanone. Would my answer be incorrect, or is it alright either way? Thanks!
- Fri Mar 10, 2017 2:52 pm
- Forum: *Alkanes and Substituted Alkanes (Staggered, Eclipsed, Gauche, Anti, Newman Projections)
- Topic: Torsional Strain [ENDORSED]
- Replies: 5
- Views: 1441
Re: Torsional Strain [ENDORSED]
I believe so, the Organic Chemistry book says "Torsional strain results from bonds on adjacent atoms being eclipsed".
- Thu Mar 02, 2017 10:22 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3041221
Re: Post All Chemistry Jokes Here
One letter makes a difference.
- Thu Feb 23, 2017 11:09 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3041221
Re: Post All Chemistry Jokes Here
You matter.
Unless you multiply yourself by the speed of light, squared.
Then, you energy.
Unless you multiply yourself by the speed of light, squared.
Then, you energy.
- Thu Feb 16, 2017 1:31 am
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3041221
Re: Post All Chemistry Jokes Here
" Bro 1: Hey do you want to hear a joke about Sodium Hypobromite?
Bro 1: NaBrO
Bro 2: I slapped my neon that one! "
Bro 1: NaBrO
Bro 2: I slapped my neon that one! "
- Thu Feb 09, 2017 10:28 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: 14.11
- Replies: 2
- Views: 582
Re: 14.11
They are inert electrodes-- they don't participate in the reaction, they promote the chemical reactions. I believe that they supply/withdraw electrons (?).
- Thu Feb 02, 2017 4:07 pm
- Forum: Phase Changes & Related Calculations
- Topic: Given quantities
- Replies: 2
- Views: 549
Re: Given quantities
On the formula sheet, I believe we're only given those that correspond to water. But if it's for another substance, I think they should put it in the problem.
- Thu Feb 02, 2017 3:49 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Quiz 1 Preparation Answers
- Replies: 130
- Views: 25409
Re: Quiz 1 Preparation Answers
#8 on Quiz 1 Preparation says, "For reaction: 2C+2H2=C2H4, DeltaH= +52.3 kJ/mol and DeltaS= -53.07 J/K*mol at 298 K. At what temperature will this reaction be spontaneous?" Initially, I thought the formula needed to solve for the temperature was DeltaG= DeltaH - T*DeltaS but then I saw th...
- Wed Jan 25, 2017 11:04 pm
- Forum: Concepts & Calculations Using Second Law of Thermodynamics
- Topic: Molecules and Disorder
- Replies: 1
- Views: 524
Molecules and Disorder
I completed practice question #23 for chapter 9, and the solutions stated that one of the molecule choices was incorrect because "all groups attached...are identical". This may be a stretch, but I was wondering if polarity had any correlation with disorder?
- Thu Jan 19, 2017 1:02 am
- Forum: Phase Changes & Related Calculations
- Topic: Course Reader clarification [ENDORSED]
- Replies: 2
- Views: 539
Course Reader clarification [ENDORSED]
Can I please get clarification on using an integral to sum an infinite number of steps? I was wondering if we will ever need to know how to derive w, work, for the exams/quizzes.
- Thu Jan 12, 2017 11:39 pm
- Forum: Phase Changes & Related Calculations
- Topic: Bond Enthalpy and Enthalpy of Formation
- Replies: 4
- Views: 713
Re: Bond Enthalpy and Enthalpy of Formation
If the standard enthalpy of formation is not found on the tables given, is it then safe to assume that it equals 0?