Search found 9 matches

by 200221128
Sat Mar 12, 2016 1:28 am
Forum: Balancing Redox Reactions
Topic: half reactions
Replies: 2
Views: 487

Re: half reactions

In general, if a question asks for the half reactions, should they already be balanced (if the oxidation and reduction reactions have different numbers of electrons) or should we just write the unbalanced half reactions and balance it in the final overall equation? If a question asks for half react...
by 200221128
Tue Mar 08, 2016 2:10 pm
Forum: *Alkanes and Substituted Alkanes (Staggered, Eclipsed, Gauche, Anti, Newman Projections)
Topic: Winter 2011 Final #8D
Replies: 3
Views: 510

Re: Winter 2011 Final #8D

This molecule is not actually a cyclohexane. There is a longer chain of carbons that is present outside of the ring, and as a result, the ring becomes a substituent in this case.
by 200221128
Tue Mar 08, 2016 2:08 pm
Forum: *Alkanes
Topic: Functional Groups
Replies: 2
Views: 495

Re: Functional Groups

The priority of the functional groups is as follows:
1. Carboxylic acid
2. Aldehyde
3. Ketone
4. Alcohol
5. Amines
6. Alkene/Alkyne (same priority)
7. Alkane
8. Ether
by 200221128
Fri Mar 04, 2016 8:14 pm
Forum: *Alkanes and Substituted Alkanes (Staggered, Eclipsed, Gauche, Anti, Newman Projections)
Topic: cis versus trans
Replies: 2
Views: 434

Re: cis versus trans

Cis and trans are determined by geometric isomerism. Cis means that the molecules that are more heavily considered are on the same side, while H would be on the same side as well. On the other hand, trans is when hydrogens and the other bigger molecules would be in pairs and there would be one hydro...
by 200221128
Tue Feb 23, 2016 2:07 pm
Forum: *Organic Reaction Mechanisms in General
Topic: Catalysts
Replies: 2
Views: 500

Re: Catalysts

When the book says that the catalyst has a completely different reaction pathway, I think that the "new path" entails lowering the activation energy, therefore being different from the original. I wouldn't say that it is completely different, and rather is very similar besides certain typi...
by 200221128
Fri Feb 12, 2016 9:52 pm
Forum: Method of Initial Rates (To Determine n and k)
Topic: Why K isn't determinant on reactants?
Replies: 3
Views: 532

Re: Why K isn't determinant on reactants?

K is not a determinant because it remains of the same value. It is a constant value and does not change depending on the equation or for what use it is being used for.
by 200221128
Thu Feb 04, 2016 6:52 pm
Forum: Thermodynamic Systems (Open, Closed, Isolated)
Topic: Isolated Systems
Replies: 1
Views: 377

Re: Isolated Systems

If the system is mechanically isolated, then it will remain at constant volume. In most cases, it is safe to assume that an isolated system is at constant volume. However, there are cases when there is not the presence of a constant volume even if the system is isolated.
by 200221128
Fri Jan 22, 2016 2:11 am
Forum: Thermodynamic Definitions (isochoric/isometric, isothermal, isobaric)
Topic: Definition of degeneracy and relationship to entropy
Replies: 6
Views: 2562

Re: Definition of degeneracy and relationship to entropy

In basic chemical terms, degeneracy if it is unable to singularly conform to one energy state. It is labeled as degenerate when it has the ability to partake in more than one energy state and has several abundance availability in those. It can also be used to describe systems when the systems are of...
by 200221128
Fri Jan 15, 2016 6:00 pm
Forum: Concepts & Calculations Using Second Law of Thermodynamics
Topic: Examples for First and Second Laws
Replies: 1
Views: 401

Re: Examples for First and Second Laws

A very simple example of the first law of thermodynamics is the melting of an ice cube. The energy that was originally contained in the ice cube itself transform into a liquid phase. The amount of energy even in the phase change retains the same amount of energy. The total amount of heat in the syst...

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