## Search found 10 matches

Sun Mar 19, 2017 2:32 am
Forum: *Calculations Using ΔG° = -RT ln K
Topic: Arrhenius Graphs
Replies: 3
Views: 1095

### Re: Arrhenius Graphs

"The rate constant of a reaction can be expressed as k = Ae-Ea/RT which is called the Arrhenius equation. Taking the natural log of both sides of the Arrhenius equation gives ln k = -Ea/R(1/T) + ln A The equation above is of the form y = mx + b, where y = ln k, m = -Ea/RT, x = 1/T, and b = ln A...
Sun Mar 12, 2017 8:13 pm
Forum: *Cycloalkenes
Topic: Geometric Isomers
Replies: 2
Views: 787

### Re: Geometric Isomers

"Constitutional isomers are isomers where the connectivity of atoms differs in molecules. Geometric isomers are a type of stereoisomers. This type of isomers results, when molecules have a restricted rotation, basically, due to a double bond. When there is a single carbon – carbon bond, the rot...
Sun Mar 05, 2017 6:32 pm
Forum: *Alkanes
Topic: More or less nucleophilic?
Replies: 2
Views: 426

### Re: More or less nucleophilic?

Yes, so it's based primarily on the electronegativity and the charge of the molecules.
Mon Feb 27, 2017 1:25 am
Forum: *Organic Reaction Mechanisms in General
Topic: Transition States and Intermediates
Replies: 2
Views: 419

### Re: Transition States and Intermediates

"An intermediate is a short-lived unstable molecule in a reaction which is formed in between the reaction when reactants change into products. Whereas, transition state is just the state before formation of new molecule (involves breaking of bonds of reactants and formation of new ones)."
Sun Feb 19, 2017 11:14 pm
Forum: Kinetics vs. Thermodynamics Controlling a Reaction
Topic: Ways to Approach Proposed Reaction Mechanisms
Replies: 2
Views: 340

### Re: Ways to Approach Proposed Reaction Mechanisms

The steady-state approach and the pre-equilibrium techniques will get you the same final answer, but I think we're just going to use the pre-equilibrium approach to find the overall rate law.
Sun Feb 12, 2017 9:05 pm
Forum: Balancing Redox Reactions
Topic: Balancing equations
Replies: 10
Views: 1071

### Re: Balancing equations

I'm pretty sure it's assumed that we should know the charges for the polyatomic ions.
Sun Feb 05, 2017 8:38 pm
Forum: Balancing Redox Reactions
Topic: Standard Reduction Potential
Replies: 3
Views: 362

### Re: Standard Reduction Potential

SRP is an intensive property because, "the number of electrons lost must equal the number gained, the half-reactions must be multiplied by integers as necessary to achieve the balanced equation. It does not depend on how many times the reaction occurs, the potential is not multiplied by the int...
Sun Jan 29, 2017 11:00 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Question 8.85 Part C
Replies: 1
Views: 589

### Re: Question 8.85 Part C

You have to divide 492 J by the standard J for one mole of the substance, which will give you the moles of N2 oxidized. Then, times that number by the molecular weight of N2, in order to get the mass of the nitrogen gas that was oxidized.
Sun Jan 22, 2017 9:22 pm
Forum: Phase Changes & Related Calculations
Topic: delta u sign
Replies: 2
Views: 425

### Re: delta u sign

Yes, from what I know, it does become a positive when work is being done on the system.
Sun Jan 15, 2017 8:23 pm
Forum: Phase Changes & Related Calculations
Topic: Explanation of Absorbing energy vs. Releasing energy
Replies: 2
Views: 366

### Re: Explanation of Absorbing energy vs. Releasing energy

When a chemical reaction occurs, bonds during the reactants phase are broken; whereas, the new bonds are the products of the chemical reaction. Energy has to be absorbed in order to break bonds, as a result being endothermic. On the contrary, when energy is released new bonds form, which is know to ...