Search found 11 matches

by Bronson_Barretto_2C
Fri Mar 17, 2017 8:17 pm
Forum: *Alkanes and Substituted Alkanes (Staggered, Eclipsed, Gauche, Anti, Newman Projections)
Topic: Identifying Strain
Replies: 2
Views: 737

Re: Identifying Strain

I don't think you're able to identify the exact type of strain. The Newman Projection is just a theoretical representation from a viewpoint against a carbon-carbon bond, so the strain visualized might not be entirely correct. If we had to define a strain on the final, I think we would have to be giv...
by Bronson_Barretto_2C
Sun Mar 05, 2017 2:12 pm
Forum: Arrhenius Equation, Activation Energies, Catalysts
Topic: Practice Problems for Quiz #3
Replies: 1
Views: 308

Practice Problems for Quiz #3

Does anyone know which questions, or range of questions, in the textbook cover the material we need to know for Quiz 3 before the "Thermodynamics and Kinetics of Organic Reactions section? Thank you in advance..
by Bronson_Barretto_2C
Thu Mar 02, 2017 12:33 am
Forum: *Alkanes
Topic: Naming [ENDORSED]
Replies: 92
Views: 10083

Re: Naming [ENDORSED]

What do the numbers represent? The numbers are used to represent which Carbon in the parent chain the substituent is attached to. For example, in 4-methyl-octane, the methyl substituent is attached to the 4th carbon in the octane parent chain. Counting carbons from the left, you will get that the s...
by Bronson_Barretto_2C
Tue Feb 21, 2017 2:43 pm
Forum: Method of Initial Rates (To Determine n and k)
Topic: Finding K
Replies: 1
Views: 328

Re: Finding K

Usually, the question itself will give it away. For general reaction rate, you only need 2 concentrations (final and initial) and 2 times (final and initial). With integrated rate laws, variables such as the rate constant will be needed to solve. So basically, the question itself will give certain v...
by Bronson_Barretto_2C
Mon Feb 20, 2017 3:23 pm
Forum: General Rate Laws
Topic: Confusion in Course Reader, Page 65
Replies: 1
Views: 194

Confusion in Course Reader, Page 65

I'm super confused by the radioactive decay example on page 65 of the course reader. Is this page just an example of a radioactive decay and its units or will we need to know all of its contents for Quiz 2?
by Bronson_Barretto_2C
Wed Feb 15, 2017 11:25 pm
Forum: Kinetics vs. Thermodynamics Controlling a Reaction
Topic: Course Reader Example
Replies: 4
Views: 554

Re: Course Reader Example

I think Professor Lavelle went over this in class a couple lectures ago, but basically the reaction of diamond diminishing to graphite is a favorable process; and as such is spontaneous. The reason its almost physically impossible to occur at standard temperature and pressure is due to the reaction'...
by Bronson_Barretto_2C
Thu Feb 09, 2017 11:28 pm
Forum: Balancing Redox Reactions
Topic: Reduction and Oxidation [ENDORSED]
Replies: 6
Views: 619

Re: Reduction and Oxidation [ENDORSED]

Can someone explain to me reduction and oxidation in the example Lavelle used in lecture I'm a little confused. So in the course reader on page 47 it says: Fe^3+(aq) + Cu(s)---------> Cu^2+(aq) + Fe^2+ (aq) Which one is oxidized and which one is reduced? Because i was rewatching the lecture and I g...
by Bronson_Barretto_2C
Tue Jan 31, 2017 1:53 pm
Forum: Administrative Questions and Class Announcements
Topic: Quiz 1 Preparation Answers
Replies: 130
Views: 17189

Re: Quiz 1 Preparation Answers

Can someone please explain why #8 is "no temperature"? The reasoning is based on the chart (pg. 37 in the course reader) Dr. Lavelle presented in lecture that according to the +/- values of ∆H and ∆S, we can assume the +/- of ∆G, negative being spontaneous and positive being non-spontaneo...
by Bronson_Barretto_2C
Thu Jan 26, 2017 2:50 pm
Forum: Gibbs Free Energy Concepts and Calculations
Topic: Quiz 1 Prep, #8
Replies: 4
Views: 556

Re: Quiz 1 Prep, #8

So I understand that since ∆H is positive and ∆S is negative= non-spontaneous ∆G, but for this question in particular do we show all this work and then say it's non-spontaneous or just write down non-spontaneous as an answer right off the bat?
by Bronson_Barretto_2C
Thu Jan 19, 2017 7:38 pm
Forum: Phase Changes & Related Calculations
Topic: Course Reader clarification [ENDORSED]
Replies: 2
Views: 353

Re: Course Reader clarification [ENDORSED]

Since Dr. Lavelle mentioned it in lecture and assumes we've all had experience taking derivatives and finding integrals, I'd say we will probably need to do one of the two or even both on a quiz/exam. But I don't think he'd give us any tedious or over-complicated problems. I hope this helps, if anyt...
by Bronson_Barretto_2C
Sun Jan 15, 2017 8:50 pm
Forum: Phase Changes & Related Calculations
Topic: Other examples of elements which go through sublimation
Replies: 4
Views: 2008

Re: Other examples of elements which go through sublimation

Yes, I also saw that Iodine crystals and water are popular sources of sublimation. I also searched up naphtalene and it appears to be a a natural substance found in mothballs that starts as a solid and sublimates into a toxic gas. This gas has proven to kill insects and repel certain animals, and as...

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