Search found 10 matches
- Sun Mar 19, 2017 1:23 am
- Forum: Concepts & Calculations Using First Law of Thermodynamics
- Topic: Ideal gas
- Replies: 1
- Views: 569
Ideal gas
How do 3/2*R and 5/2*R correspond to PV=nRT and when would they be applicable?
- Mon Mar 06, 2017 1:45 pm
- Forum: *Alkanes
- Topic: Naming [ENDORSED]
- Replies: 93
- Views: 16728
Re: Naming [ENDORSED]
Why is there a 2 in pentanone for CH3COCH2CH2CH3 It is a ketone which means there is a double bond attached to a carbon in the parent carbon chain which is bonded to two other carbons and since this is your functional group and you want to have the lowest possible number you start counting from whi...
- Sun Mar 05, 2017 11:20 pm
- Forum: *Alkanes
- Topic: IUPAC naming on page 93
- Replies: 2
- Views: 539
Re: IUPAC naming on page 93
On page 93, the compound listed is (ignore the periods, I used them to keep the substituents above the specific carbons as listed on page 93) : ..... CH 3 .CH 2 CH 3 ..... | .......| CH 3 CCH 2 CHCH 2 CH 3 ...... | ...... CH_3 The name, as stated on the page, is 4-ethyl-2,2-dimethyl-hexane. What is...
- Sun Mar 05, 2017 11:09 pm
- Forum: *Alkanes
- Topic: Naming [ENDORSED]
- Replies: 93
- Views: 16728
Re: Naming [ENDORSED]
Leo_Navejas_3B wrote:For substituents do we use common or systematic naming??
I believe that Professor Lavelle said that either is acceptable but they'd specify if they want the IUPAC name.
- Sun Mar 05, 2017 11:00 pm
- Forum: *Alkanes
- Topic: Naming [ENDORSED]
- Replies: 93
- Views: 16728
Re: Naming [ENDORSED]
On page 93 of the course reader, we choose 4-ethyl-2,2-dimethyl-hexane as the correct name of the molecule instead of 3-ethyl-5,5-dimethyl-hexane. We are always supposed to choose the name with the lowest number, so why do we choose 4-ethyl instead of the 3-ethyl? Is it dependent on the dimethyl on...
- Sun Feb 26, 2017 10:32 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3641164
Re: Post All Chemistry Jokes Here
Q: What happens to nitrogen when the sun rises?
A: It becomes daytogen
A: It becomes daytogen
- Mon Feb 20, 2017 11:13 pm
- Forum: Reaction Mechanisms, Reaction Profiles
- Topic: Pre-Equilibrium Help [ENDORSED]
- Replies: 5
- Views: 2331
Re: Pre-Equilibrium Help [ENDORSED]
why isn't water included in the rate law? Water does not determine or limit the rate since reactions with water as a solvent have H2O, H3O+, and OH- in the solution throughout the reaction making its presence fixed. The relative concentration of water is also temperature dependent while k is for a ...
- Sun Feb 12, 2017 8:15 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3641164
Re: Post All Chemistry Jokes Here
Ion-estly can't think of one good joke
- Sun Feb 05, 2017 12:10 am
- Forum: Student Social/Study Group
- Topic: Formulas
- Replies: 4
- Views: 994
Re: Formulas
I typically write down the formulas from throughout the section of course reader and the chapter from the textbook on a separate sheet of paper. And as Huongly stated, most of them are already in the back of the laminated periodic table that came with the course reader.
- Sun Jan 22, 2017 4:27 pm
- Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
- Topic: Significant Figure [ENDORSED]
- Replies: 7
- Views: 1392
Re: Significant Figure [ENDORSED]
It would be ideal I heard you may lose points for incorrect significant figures.