Search found 10 matches

by angelicapayne
Thu Mar 16, 2017 11:27 pm
Forum: *Alkenes
Topic: When to use cis and trans?
Replies: 2
Views: 619

Re: When to use cis and trans?

this isn't a stupid question at all! as far as i know from what's shown in the course reader: when naming cycloalkanes, you use "cis" when the 2 substituents are on the same side of the ring and "trans" when the substituents are on different sides of the ring. this same type of r...
by angelicapayne
Mon Mar 13, 2017 4:11 pm
Forum: *Haloalkanes
Topic: Order of writing halogens
Replies: 3
Views: 813

Re: Order of writing halogens

You would start numbering at the halogen that comes alphabetically first. For example if you had 1-bromo-3-chlorocyclohexane, because "b" comes before "c", you start numbering at the bromo and then go in the direction that gives the chloro the smallest number. http://www.chemsin...
by angelicapayne
Mon Mar 13, 2017 4:07 pm
Forum: *Haloalkanes
Topic: Order of writing halogens
Replies: 3
Views: 813

Re: Order of writing halogens

You would start numbering at the halogen that comes alphabetically first. For example if you had 1-bromo-3-chlorocyclohexane, because "b" comes before "c", you start numbering at the bromo and then go in the direction that gives the chloro the smallest number.
by angelicapayne
Mon Mar 13, 2017 3:50 pm
Forum: *Cycloalkanes
Topic: numbering the carbons
Replies: 4
Views: 743

Re: numbering the carbons

Because alphabetically "e" comes before "f", you would want the ethyl to have the lowest number. When you start numbering at ethyl and go clockwise the fluoro is on the 4th carbon; similarly if you go counterclockwise the fluoro is still on the 4th carbon. (If these were differen...
by angelicapayne
Mon Mar 13, 2017 3:20 pm
Forum: *Alkanes
Topic: Numbering
Replies: 6
Views: 528

Re: Numbering

My TA mentioned the sum rule works only in some cases so it is not always a reliable way to determine numbering
by angelicapayne
Mon Mar 06, 2017 9:15 pm
Forum: Administrative Questions and Class Announcements
Topic: Quiz 3 Winter 2017
Replies: 183
Views: 16533

Re: Quiz 3 Winter 2017

Alice Jung 1C wrote:Can somebody please clarify what compound is named in #1 please for the practice quiz 3? The print on my CR is very faint.


It is: CH3 CH2 CH2 CH2 CH2 CH2 CH (off of this C there is CH(CH3)2) CH2 CH2 CH3
So there are 10 carbons on the main chain and CH(CH3)2 is the substituent off the 7th C
by angelicapayne
Fri Feb 10, 2017 12:03 pm
Forum: Interesting Applications: Rechargeable Batteries (Cell Phones, Notebooks, Cars), Fuel Cells (Space Shuttle), Photovoltaic Cells (Solar Panels), Electrolysis, Rust
Topic: Applications
Replies: 1
Views: 334

Applications

Found this article and thought it was really cool to read about applications of electrochem in this battery! Just for fun :)

https://m.techxplore.com/news/2017-02-l ... pkeep.html
by angelicapayne
Tue Feb 07, 2017 1:42 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: memory trick [ENDORSED]
Replies: 3
Views: 582

Re: memory trick [ENDORSED]

I really like that trick, thanks so much! Another "trick" I've heard of is OIL RIG in trying to remember the loss/ gain of electrons for oxidation and reduction: OIL = "oxidation is losing", RIG = "reduction is gaining"
by angelicapayne
Wed Feb 01, 2017 9:05 pm
Forum: Calculating Work of Expansion
Topic: Sign of Work
Replies: 4
Views: 571

Re: Sign of Work

when a system does work on its surroundings, the system is exerting work so work is negative. if the surroundings are doing work on the system, work is positive because the system is absorbing the work!
by angelicapayne
Wed Feb 01, 2017 9:01 pm
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: Question on Units of Temperature
Replies: 4
Views: 393

Re: Question on Units of Temperature

you can use K and C interchangeably because a 1° change in Celsius is equal to 1° change in kelvin

Go to advanced search