Search found 11 matches
- Thu Mar 16, 2017 10:43 am
- Forum: Administrative Questions and Class Announcements
- Topic: Lecture on Friday
- Replies: 2
- Views: 648
Re: Lecture on Friday
No, there isn't, but if you have a Friday discussion, you still have that class! Also! On Friday, there's still these review session: 4-5:30pm, Dr. Lavelle (Winter 2016 Final. Since it is ~3hr final I will likely cover the first half in my 90 minute review with student Q&A, discussion, etc.) 5:3...
- Thu Mar 16, 2017 10:39 am
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3008971
Re: Post All Chemistry Jokes Here
I wonder if anyone in the UCLA Chem Community can confirm.
- Thu Mar 16, 2017 10:34 am
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3008971
Re: Post All Chemistry Jokes Here
FOR ALL THOSE WHO'VE TAKEN 14BL/WILL TAKE IT
- Thu Mar 16, 2017 10:27 am
- Forum: Administrative Questions and Class Announcements
- Topic: Quiz 3 Winter 2017
- Replies: 183
- Views: 29072
Re: Quiz 3 Winter 2017
Chris_Rudewicz_3H wrote:We still get to drop our lowest quiz score, right?
Your lowest quiz score will be replaced by your highest quiz score.
So your grade for quizzes should be:
1. HIGHEST SCORE
2. HIGHEST SCORE
3. MIDDLE SCORE
- Thu Mar 16, 2017 10:22 am
- Forum: Administrative Questions and Class Announcements
- Topic: Saying Thank You to Dr. Lavelle
- Replies: 490
- Views: 513936
Re: Saying Thank You to Dr. Lavelle
Dr. Lavelle, Thank you for being so advocating for students. No other professor has so many office hours from himself, TA's, UA's, and PLF's. Not to mention you have Chemistry Community for anything as well. You have so many resources, and you give students no excuse. That's amazing. You truly care ...
- Thu Mar 16, 2017 10:15 am
- Forum: Administrative Questions and Class Announcements
- Topic: Final Exam Details and Review Sessions Winter 2017
- Replies: 114
- Views: 26604
Re: Final Exam Details and Review Sessions Winter 2017
204639491 wrote:Will any of the Review Sessions be Bruincasted?
2 students from lecture 1 will be recording and posting on chemistry community (:
- Thu Mar 16, 2017 10:10 am
- Forum: *Nucleophilic Substitution
- Topic: SN2
- Replies: 2
- Views: 1503
Re: SN2
Like noted above, SN2 is a single step mechanism. So if you create a one step mechanism, and the starting molecule does not look like the end molecule after that first step, then it will be electrophilic addition, because there are more steps to match the starting molecule and the end molecule. As n...
- Thu Mar 16, 2017 10:05 am
- Forum: Arrhenius Equation, Activation Energies, Catalysts
- Topic: Catalyst vs. Intermediate Species
- Replies: 2
- Views: 1053
Re: Catalyst vs. Intermediate Species
If we're describing catalysts and intermediates in free energy diagrams, The catalyst is not specifically drawn in the diagram, but it will decrease the activation energy. So you will draw your deltaG curve smaller than before the catalyst was put in. Intermediates are represented by the valley in b...
- Thu Mar 16, 2017 9:53 am
- Forum: Arrhenius Equation, Activation Energies, Catalysts
- Topic: Arrhenius Equation
- Replies: 2
- Views: 695
Re: Arrhenius Equation
I give a second confirmation, you can use that equation as well, and many of the PLF's teach the Arrhenius Equation this way, so like the first replier stated, it's not the fault of the equations. Although, my TA did mention before we took the quiz, it's always more favorable to use the equations th...
- Thu Mar 16, 2017 9:50 am
- Forum: Method of Initial Rates (To Determine n and k)
- Topic: Two Step Reactions
- Replies: 3
- Views: 806
Re: Two Step Reactions
Yes, the slow step takes more energy to be carried out than the fast step. If you think about the 2 step free energy diagram that we did on Quiz 3, if k1 > k2 this means that the rate is faster for k1. If the rate is faster, the activation energy is lower (deltaGdoubledagger1). But k2 is slower, so ...
- Sun Jan 22, 2017 4:56 pm
- Forum: Phase Changes & Related Calculations
- Topic: Quiz Prep #1 question #8
- Replies: 2
- Views: 643
Re: Quiz Prep #1 question #8
This problem involves using the Gibbs equation, and when you plug in the values it ends up always positive.
So yes, the answer is no temperature cause that would never happen.
So yes, the answer is no temperature cause that would never happen.