Search found 10 matches

by Ana_Andrade_1A
Sun Mar 19, 2017 1:23 am
Forum: Concepts & Calculations Using First Law of Thermodynamics
Topic: Ideal gas
Replies: 1
Views: 351

Ideal gas

How do 3/2*R and 5/2*R correspond to PV=nRT and when would they be applicable?
by Ana_Andrade_1A
Mon Mar 06, 2017 1:45 pm
Forum: *Alkanes
Topic: Naming [ENDORSED]
Replies: 92
Views: 8323

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...
by Ana_Andrade_1A
Sun Mar 05, 2017 11:20 pm
Forum: *Alkanes
Topic: IUPAC naming on page 93
Replies: 2
Views: 280

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...
by Ana_Andrade_1A
Sun Mar 05, 2017 11:09 pm
Forum: *Alkanes
Topic: Naming [ENDORSED]
Replies: 92
Views: 8323

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.
by Ana_Andrade_1A
Sun Mar 05, 2017 11:00 pm
Forum: *Alkanes
Topic: Naming [ENDORSED]
Replies: 92
Views: 8323

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...
by Ana_Andrade_1A
Sun Feb 26, 2017 10:32 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7606
Views: 1018663

Re: Post All Chemistry Jokes Here

Q: What happens to nitrogen when the sun rises?
A: It becomes daytogen
by Ana_Andrade_1A
Mon Feb 20, 2017 11:13 pm
Forum: Reaction Mechanisms, Reaction Profiles
Topic: Pre-Equilibrium Help [ENDORSED]
Replies: 5
Views: 1437

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 ...
by Ana_Andrade_1A
Sun Feb 12, 2017 8:15 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7606
Views: 1018663

Re: Post All Chemistry Jokes Here

Ion-estly can't think of one good joke
by Ana_Andrade_1A
Sun Feb 05, 2017 12:10 am
Forum: Student Social/Study Group
Topic: Formulas
Replies: 4
Views: 508

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.
by Ana_Andrade_1A
Sun Jan 22, 2017 4:27 pm
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: Significant Figure [ENDORSED]
Replies: 7
Views: 670

Re: Significant Figure [ENDORSED]

It would be ideal I heard you may lose points for incorrect significant figures.

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