Search found 10 matches
Naming
Is methyl ethanol another name for 2-propanol? Since the common name is different, is there anything that makes these two names different if the structures would come out the same, or is the first name just not used?
- Thu Mar 03, 2016 1:32 am
- Forum: *Nucleophiles
- Topic: Ambident Nucleophiles
- Replies: 2
- Views: 603
Ambident Nucleophiles
Can you tell if a nucleophile is ambident if it has different lewis structures?
- Thu Mar 03, 2016 1:24 am
- Forum: *Electrophiles
- Topic: Ambident
- Replies: 1
- Views: 398
Ambident
Can electrophiles also be ambident? What makes them similar or different from nucleophiles that would allow both or only nucleophiles to be ambident?
- Thu Feb 18, 2016 1:53 am
- Forum: First Order Reactions
- Topic: Half Life
- Replies: 1
- Views: 432
Half Life
Why is the half life for any first order reaction not affected by the initial concentration [A]? Does k, the rate/decay constant, vary from reaction to reaction making the half life of different first order reactions have different half lives depending on what is reacting and being produced?
- Thu Feb 18, 2016 1:41 am
- Forum: Reaction Mechanisms, Reaction Profiles
- Topic: Overall Rate
- Replies: 1
- Views: 341
Overall Rate
The slowest intermediate rate is the one that determines the overall rate. In the course reader example we could tell which intermediate rate, step 1 or step 2, was the determining rate because the reactant of only one was the reactant that was in the overall reaction and thus the rate that agreed w...
- Thu Feb 18, 2016 1:17 am
- Forum: General Rate Laws
- Topic: Deriving Rate Laws
- Replies: 1
- Views: 360
Deriving Rate Laws
If rate=-(1/a)(d[A]/dt), what happens to a and thus the (1/a) term while separating the variables before integrating to get the order rate law?
- Thu Feb 18, 2016 1:07 am
- Forum: Kinetics vs. Thermodynamics Controlling a Reaction
- Topic: Control of the Reaction
- Replies: 2
- Views: 416
Control of the Reaction
How do you tell whether kinetics or thermodynamics control the reaction? Kinetics is analyzed by the rate of the reaction and thermodynamics by delta G, but how do you know which is in control?
- Fri Jan 29, 2016 11:13 am
- Forum: Concepts & Calculations Using First Law of Thermodynamics
- Topic: Heat in an isothermal reaction
- Replies: 2
- Views: 592
Heat in an isothermal reaction
Because q=nC(Tf-Ti), when the reaction is isothermal, is heat zero? If this is the case, is the change in the internal energy then equal to work?
- Thu Jan 28, 2016 4:45 pm
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: Bond Enthalpies
- Replies: 1
- Views: 459
Bond Enthalpies
What is the difference in using mean bond enthalpies and bond enthalpies of diatomic molecules? For example, the O-O bond has a mean bond enthalpy of 157 kJ/mol but is 496 kJ/mol under bond enthalpies of diatomic molecules. Is it in regards to the bond type because O2 has a double bond? If so will t...
- Tue Jan 12, 2016 9:00 pm
- Forum: Phase Changes & Related Calculations
- Topic: Reversible and Irreversible expansion
- Replies: 1
- Views: 239
Reversible and Irreversible expansion
What makes an expansion process reversible or irreversible? Does the expansion being isothermal matter in both or just one of those processes, and if so how?