Search found 15 matches

by 404639305
Sat Mar 18, 2017 8:47 pm
Forum: Appications of the Nernst Equation (e.g., Concentration Cells, Non-Standard Cell Potentials, Calculating Equilibrium Constants and pH)
Topic: pH using Nernst Equation
Replies: 2
Views: 368

Re: pH using Nernst Equation

We would know it's not E*cell because that would be the standard cell emf, i'm not sure about the n though, could someone help? I'm wondering about that too...
by 404639305
Sat Mar 18, 2017 6:29 pm
Forum: *Alkanes and Substituted Alkanes (Staggered, Eclipsed, Gauche, Anti, Newman Projections)
Topic: chapter 3 question 9
Replies: 1
Views: 543

Re: chapter 3 question 9

There is steric strain because the two unbonded C molecule on top are too close together which causes its substituents (2 bulky molecules) to hit each other. There is torsional strain because since the molecule has Carbon single bonds, it can rotate and thus become in the eclipsed conformation and h...
by 404639305
Sat Mar 18, 2017 5:57 pm
Forum: *Alkanes
Topic: Neo- vs. Tert-
Replies: 5
Views: 721

Re: Neo- vs. Tert-

neo- and tert- are sometimes used in iupac naming just to make things easier, but using just iupac would be correct as well
by 404639305
Sat Mar 18, 2017 5:55 pm
Forum: *Cyclohexanes (Chair, Boat, Geometric Isomers)
Topic: Chair Flipping
Replies: 2
Views: 576

Re: Chair Flipping

Jocelyn_Dao_2N wrote:Hi! Can anyone explain how to carry out chair flipping? Like how do you re-number it and know where to put the functional groups on the newly flipped structure?


when there's a chair flip the only thing that happens is that all the axials become equitorials and equitorials become axials
by 404639305
Wed Mar 15, 2017 2:30 pm
Forum: *Amines
Topic: Final 2013 5A
Replies: 3
Views: 582

Re: Final 2013 5A

Ashley Van Belle 2B wrote:Will we be expected to know primary or secondary amines on the final?


Yes, I believe so.
by 404639305
Wed Mar 15, 2017 2:22 pm
Forum: *Cycloalkanes
Topic: Numbering counterclockwise or clockwise
Replies: 4
Views: 2346

Re: Numbering counterclockwise or clockwise

I have a related question - what if there is a functional group as well as a double bond? I know that the carbon attached to the functional group would be the first one but if the double bond isn't attached to that same first carbon, which was does the numbering go? Or does it not matter? A double ...
by 404639305
Fri Mar 10, 2017 10:54 am
Forum: Administrative Questions and Class Announcements
Topic: Quiz 3 Winter 2017
Replies: 183
Views: 15865

Re: Quiz 3 Winter 2017

Jocelyn_Dao_2N wrote:Why is the answer for number 4, 4-butyl-1,2-dimethylcyclohexane and not 1,butyl-3,4-butylcyclohexane?


remember you name in alphabetical order
by 404639305
Fri Mar 10, 2017 10:25 am
Forum: Administrative Questions and Class Announcements
Topic: Quiz 3 Winter 2017
Replies: 183
Views: 15865

Re: Quiz 3 Winter 2017

emilie liu 3G wrote:Will we have to know tert and sec for the quiz or can we use the IUPAC names for them instead of common names?


Lavelle said that he would never explicitly ask for common names, he said he with either just ask for the name (in which case you have the option of IUPAC or common) or just eh IUPAC.
by 404639305
Wed Feb 22, 2017 6:21 pm
Forum: Administrative Questions and Class Announcements
Topic: Midterm Winter 2017
Replies: 87
Views: 14399

Re: Midterm Winter 2017

Sorry, if Lavelle already mentioned it, but what was the average for the midterm?
Thanks!
by 404639305
Wed Feb 22, 2017 3:00 pm
Forum: Administrative Questions and Class Announcements
Topic: Quiz 2 Winter 2017
Replies: 160
Views: 15301

Re: Quiz 2 Winter 2017

As for number 7, when do we know to use the rearranged integrated rate law and when to use the differential rate law? I think the differential rate law talks about the overall rate while the Integrated Rate Law talks about rate as a function of time (usually a particular moment in time). So,when ti...
by 404639305
Tue Feb 14, 2017 10:56 pm
Forum: Balancing Redox Reactions
Topic: HW 14.5
Replies: 2
Views: 323

Re: HW 14.5

yes, so because it is not balanced, you would have to balance it first. It would be: H+ + O3 -> O2 + H2O, which is a reduction half reaction.
by 404639305
Tue Feb 14, 2017 8:20 pm
Forum: Appications of the Nernst Equation (e.g., Concentration Cells, Non-Standard Cell Potentials, Calculating Equilibrium Constants and pH)
Topic: 2013 Midterm 8B
Replies: 4
Views: 498

Re: 2013 Midterm 8B

you can simplify it first. When you simplify it you get 0.02958xlog [Fe]0.015^2/0.015^2=-0.15. So now you have to get log alone so you divide it over and get
log[Fe]0.015^2/0.015^2=-5.07, and then you just solve it normally!
Hope that helps.
by 404639305
Wed Feb 01, 2017 2:40 pm
Forum: Administrative Questions and Class Announcements
Topic: Quiz 1 Preparation Answers
Replies: 130
Views: 13703

Re: Quiz 1 Preparation Answers

John_Parks_3D wrote:Can someone please explain why 3 is an answer for #7? I understand why number 2 is an answer.


I think increasing temperature increases entropy because heat excites the molecules and causes more random movements.
by 404639305
Tue Jan 31, 2017 11:40 pm
Forum: Administrative Questions and Class Announcements
Topic: Bruincast Audio Problem
Replies: 16
Views: 1598

Re: Bruincast Audio Problem

I've downloaded silverlight multiple times for chrome and it never works, so I think the best option is Safari.
by 404639305
Tue Oct 13, 2015 7:01 pm
Forum: *Black Body Radiation
Topic: Hw problem 1.13
Replies: 2
Views: 973

Re: Hw problem 1.13

Also, you might have left your answer in meters which is why you have the negative exponent. Multiply your answer by 1.0x10^9, and that should get your answer to nanometers.

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