Search found 11 matches
- Thu Mar 10, 2016 1:45 am
- Forum: *Organic Reaction Mechanisms in General
- Topic: Geometry of transition states
- Replies: 1
- Views: 479
Geometry of transition states
What part of the transition state do you look at to figure out the geometry of it?
- Tue Mar 01, 2016 9:58 pm
- Forum: *Identifying Primary, Secondary, Tertiary, Quaternary Carbons, Hydrogens, Nitrogens
- Topic: Quiz 3 Prep
- Replies: 2
- Views: 448
Re: Quiz 3 Prep
Lavelle answered this same question and said that you always take into account alphabetical order when naming, so the correct answer should actually be 1-bromo-3-iodo-cyclohexane.
- Tue Mar 01, 2016 8:57 pm
- Forum: *Cycloalkanes
- Topic: Naming Compounds
- Replies: 1
- Views: 313
Naming Compounds
In what case would you assign the lowest number to the substituent that comes first in the alphabet versus assigning it the one with the higher atomic number? For example #5 on the first prep quiz 3, calling the compound 1-bromo-3-iodo-cyclohexane vs 3-bromo-1-iodo-cyclohexane.
- Thu Feb 25, 2016 3:45 pm
- Forum: Second Order Reactions
- Topic: Question 15.39A
- Replies: 1
- Views: 310
Question 15.39A
When you are trying to calculate the time required for the reaction to take place, why don't you take into account the mole ratio in the equation? 2A---->B+C
- Mon Feb 22, 2016 8:38 pm
- Forum: First Order Reactions
- Topic: Homework 15.23
- Replies: 1
- Views: 317
Homework 15.23
For part c, when trying to find [A]t, why do you subtract the value found from the mole ratio from 0.153, the value of [A]0?
- Wed Feb 17, 2016 10:49 am
- Forum: First Order Reactions
- Topic: First-order reaction equations
- Replies: 1
- Views: 296
First-order reaction equations
For first order reactions, when do you use the equation ln[A]= -kt+ln[A]0 versus [A]=[A]0*e^-kt?
- Mon Feb 08, 2016 11:12 pm
- Forum: Appications of the Nernst Equation (e.g., Concentration Cells, Non-Standard Cell Potentials, Calculating Equilibrium Constants and pH)
- Topic: Calculating equilibrium constants
- Replies: 1
- Views: 256
Calculating equilibrium constants
Does using E=E - 0.0592/nLOGQ vs E= - RT/nFlnQ give you the same answer when calculating an equilibrium constant?
- Thu Jan 28, 2016 11:58 pm
- Forum: Entropy Changes Due to Changes in Volume and Temperature
- Topic: Problem 9.13
- Replies: 1
- Views: 229
Problem 9.13
When you are calculating the change entropy based on the increase in temperature, the solutions manual shows that you use the equation nRln(T2/T1). Why do you use this equation instead of using the nCln(T2/T1)?
- Sun Jan 24, 2016 9:53 pm
- Forum: Thermodynamic Definitions (isochoric/isometric, isothermal, isobaric)
- Topic: Reversible and Isothermal
- Replies: 2
- Views: 525
Reversible and Isothermal
When an ideal gas is expanding isothermally and reversibly, why does q=-w?
- Sun Jan 17, 2016 3:07 pm
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: Homework Problem 8.57
- Replies: 1
- Views: 307
Homework Problem 8.57
When you are balancing the third equation that you come up with that involves H2(g) why is the balanced equation H2(g) + 1/2 O2(g)--->H20(l)? Why doesn't 2H2(g) + O2(g)---> 2H20(l) work, since the equation is still balanced this way?
- Sun Jan 10, 2016 8:40 pm
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: State Properties
- Replies: 2
- Views: 428
Re: State Properties
U is supposed to be E for energy. P is pressure, V is volume, and T is temperature.