Search found 19 matches

by Flamingos 3L
Fri Mar 17, 2017 10:36 pm
Forum: *Alcohols
Topic: How does priority shift after the first priority has been completed?
Replies: 1
Views: 499

How does priority shift after the first priority has been completed?

What would be the priority followed after we completed one of them? Say we know where to start our first number due to a functional group, but then there is a conflict between making a double bond smaller numbered vs making 2 substituents shorter numbered. Would priority follow down the chain of fun...
by Flamingos 3L
Thu Mar 09, 2017 3:53 am
Forum: *Nucleophilic Substitution
Topic: Regarding clockwise or counter clockwise isomers
Replies: 1
Views: 545

Regarding clockwise or counter clockwise isomers

In the organic textbook on page 156, it has an example with a R and S isomer. Will we need to know about the significance of these different structure variants for quiz 3 or the final?
by Flamingos 3L
Fri Mar 03, 2017 6:01 pm
Forum: *Alkanes and Substituted Alkanes (Staggered, Eclipsed, Gauche, Anti, Newman Projections)
Topic: About number ordering for Substituents
Replies: 1
Views: 257

About number ordering for Substituents

What are the number ordering for substituents within substituents based on? Like if there was a methyl attached to a pentyl at the second to the very end C atom. Would it be 2 methyl pentyl due to the lower numbering, or would it be 4 methyl pentyl due to counting starting from the side that connect...
by Flamingos 3L
Mon Feb 20, 2017 5:34 pm
Forum: Administrative Questions and Class Announcements
Topic: Quiz 2 Winter 2017
Replies: 160
Views: 15296

Re: Quiz 2 Winter 2017

Up to what chapter in the textbook are advised to study up to for this quiz? I see that the Arrhenius equation shows up during 15.11 so are we advised to just study the chapters before that?
by Flamingos 3L
Tue Feb 14, 2017 2:49 am
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: 14.11 Solutions Manual
Replies: 1
Views: 278

14.11 Solutions Manual

I have a couple questions about the explanation from the solutions manual. First, when the problems state that we must reverse the reaction yields, normally we'd have to flip the sign for the standard potentials too. This is not the case in the solutions manual, as it just proceeds with the original...
by Flamingos 3L
Sat Feb 11, 2017 9:36 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: Can someone explain what one half reduction potential is? [ENDORSED]
Replies: 1
Views: 348

Can someone explain what one half reduction potential is? [ENDORSED]

I heard this term being thrown around during my discussion and I didn't have a clear idea of what it is. Whats the relationship between this and the standard cell potentials? Thanks!
by Flamingos 3L
Thu Feb 02, 2017 6:30 pm
Forum: Entropy Changes Due to Changes in Volume and Temperature
Topic: Trouton's rule
Replies: 4
Views: 574

Trouton's rule

Are we required to know about this for the quiz?
by Flamingos 3L
Sun Jan 29, 2017 4:14 am
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Homework 8.65
Replies: 2
Views: 471

Re: Homework 8.65

How I did it was like this. I did all the work to see what was needed for the 2nd equation, which would be the energy needed to make 4 of the NO2 molecules from equation (so the equation's normal energy use times two since we 4 NO2 instead of just 2), plus the energy needed for the reaction for equa...
by Flamingos 3L
Sat Jan 21, 2017 4:20 pm
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: Can some explain reversible and irreversible processes? [ENDORSED]
Replies: 2
Views: 359

Can some explain reversible and irreversible processes? [ENDORSED]

During the last lecture and during discussion, I heard this concept thrown around a lot but I feel I still don't have a solid grasp on it. I remember during reversible processes, internal and external pressures are the same, but I'm having a hard time understanding exactly what that means in real li...
by Flamingos 3L
Sat Jan 14, 2017 5:21 pm
Forum: Phase Changes & Related Calculations
Topic: Most Helpful Resource
Replies: 14
Views: 1305

Re: Most Helpful Resource

In my opinion the TA office hours and UA have been a blessing. They're all know what they're doing so asking them to explain most of the problems helps greatly, especially on HW since there are some really confusing ones out there.
by Flamingos 3L
Sat Dec 03, 2016 12:52 am
Forum: Polyprotic Acids & Bases
Topic: Polyprotic pH calculations [ENDORSED]
Replies: 3
Views: 626

Re: Polyprotic pH calculations [ENDORSED]

Will this mean that we won't be expected to do any problem concerning the total pH of polyprotic acids through it's multiple steps on the final?
by Flamingos 3L
Sat Nov 26, 2016 10:33 pm
Forum: Identifying Acidic & Basic Salts
Topic: Acidic Salts
Replies: 3
Views: 701

Re: Acidic Salts

I think it would. When Lavell talked about how Cl- doesn't change pH, I think he referred to how the individual atom doesn't change pH, since if we were to draw out the reaction equation, Cl- would be alone on both sides, and crossed out. Despite this, the structure Cl- is attached to, anilinium chl...
by Flamingos 3L
Sun Nov 20, 2016 2:49 pm
Forum: Non-Equilibrium Conditions & The Reaction Quotient
Topic: Kc vs Kp and all the other constants
Replies: 2
Views: 362

Kc vs Kp and all the other constants

Hello! One thing I was confused about was the difference between Kc and Kp. I understand how different units are supposed to be used for both but I don't really get the difference between them conceptually. Can someone explain the difference between them, and if there are any other K I'm missing? Th...
by Flamingos 3L
Fri Nov 11, 2016 1:04 am
Forum: Naming
Topic: Equilibrium
Replies: 6
Views: 649

Re: Equilibrium

If K is between those two values, unless it is at 0, one of the sides of the reaction is still favored. The only thing is though that the favoring is so minuscule that it isn't noticeable.
by Flamingos 3L
Thu Oct 27, 2016 2:39 am
Forum: Formal Charge and Oxidation Numbers
Topic: How to figure out formal charge? [ENDORSED]
Replies: 6
Views: 801

Re: How to figure out formal charge? [ENDORSED]

For determining formal charge, it is the number of valance electrons minus the amount of lone electrons and the number of electrons in bonds divided by two. Thus the FC = V - ( L + S/2). A easier way of thinking of the problem in terms of the shared electron is to just consider the number of bonds i...
by Flamingos 3L
Fri Oct 21, 2016 8:31 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7569
Views: 1011737

Re: Post All Chemistry Jokes Here

Here ya go! An organic chemist, an analytical chemist, and a physical chemist are asked if a certain horse will win the race. The organic chemist asks what the horse has been eating and drugs given to it. The analytical chemist asks for the makeup of the track and mud. The physical chemist starts wi...
by Flamingos 3L
Tue Oct 11, 2016 1:50 am
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: Questions on the two exceptions, Chromium and Copper. [ENDORSED]
Replies: 3
Views: 406

Questions on the two exceptions, Chromium and Copper. [ENDORSED]

So in the course reader, the jump from Vanadium to Chromium is 3d^3 to 3d^5. Does this mean that three elections were added in this one transition in atomic numbers? (since Chromium is 3d^5 and 4s1) Also, after Chromium, where is the atom placed? continuing the 3d shell, on the 4s shell, or is it ju...
by Flamingos 3L
Sat Oct 08, 2016 1:53 pm
Forum: DeBroglie Equation
Topic: How do photons have momentum? [ENDORSED]
Replies: 4
Views: 626

Re: How do photons have momentum? [ENDORSED]

Photons themselves don't have momentum due to no mass. If you want to determine the wavelength of a photon, the E= wavelength * frequency equation is what you need to use.
by Flamingos 3L
Mon Sep 26, 2016 9:35 pm
Forum: Student Social/Study Group
Topic: Chemistry Jokes
Replies: 31
Views: 4372

Re: Chemistry Jokes

How can you tell the difference between a chemist and a plumber?

Ask them to pronounce unionized.

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