Search found 18 matches

by Spencer Cutrow 1A
Sun Mar 13, 2016 2:06 pm
Forum: Reaction Mechanisms, Reaction Profiles
Topic: Pre-equilibrium approach
Replies: 1
Views: 400

Pre-equilibrium approach

in this approach, why do you have to multiply the rate of formation and the other side of the equation by the coefficient of the product? Could you possibly just skip this step?
by Spencer Cutrow 1A
Sun Mar 13, 2016 2:04 pm
Forum: Arrhenius Equation, Activation Energies, Catalysts
Topic: Derivation
Replies: 2
Views: 321

Derivation

how do you derive the arrhenius equation?
by Spencer Cutrow 1A
Mon Mar 07, 2016 9:44 pm
Forum: *Calculations Using ΔG° = -RT ln K
Topic: Determining the equilibrium constant
Replies: 1
Views: 727

Determining the equilibrium constant

If we are given a molecule with 4 confirmations, like butane, will we ever be asked to determine multiple equilibrium constants at once. If so, Is there anything we can tell by looking at the equilibrium constant between two confirmations which are not directly next two each other?
by Spencer Cutrow 1A
Mon Mar 07, 2016 9:40 pm
Forum: *Cyclohexanes (Chair, Boat, Geometric Isomers)
Topic: Drawing Newman Projections
Replies: 1
Views: 288

Drawing Newman Projections

When drawing newman projections, how is it possible to label the substituent groups if they are longer than methyl? Also, is it possible to tell simply from a newman projection of a molecule like cyclohexane whether the molecule is in its cis or trans confirmation with respect to the methyl groups.
by Spencer Cutrow 1A
Mon Mar 07, 2016 12:35 pm
Forum: Administrative Questions and Class Announcements
Topic: Video Competition
Replies: 66
Views: 25152

Re: Video Competition

Spencer Cutrow, Lecture 1, Discussion 1A
Sophia Neman, Lecture 3, Discussion 3G

-We emailed this video to Sophia's TA on Saturday night in order to have proof that we finished and tried to turn it in because at the time, it wasnt working on chemistry community. Enjoy!
by Spencer Cutrow 1A
Mon Feb 29, 2016 9:19 pm
Forum: *Organic Reaction Mechanisms in General
Topic: Rate limiting step
Replies: 2
Views: 523

Rate limiting step

How do you determine the rate limiting step in an electrophillic addition reaction with two steps?
by Spencer Cutrow 1A
Fri Feb 19, 2016 11:19 am
Forum: *Organic Reaction Mechanisms in General
Topic: Determining where to combine reactants
Replies: 1
Views: 339

Determining where to combine reactants

Im having a very difficult time trying to see what part of the smaller reactants is added to which part of the large organic molecule. Is there any sure way to decided which carbon we add the reactants to?
by Spencer Cutrow 1A
Sat Feb 13, 2016 10:22 pm
Forum: General Rate Laws
Topic: Multi-Order reactions
Replies: 1
Views: 264

Multi-Order reactions

If we are given a reaction in which two reactants are both second order, is there any way to determine the overall reaction integrated rate law or do we have another method of finding out the rate for these types of equations?
by Spencer Cutrow 1A
Sat Jan 30, 2016 6:42 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: Calculating voltage of a cell
Replies: 1
Views: 304

Calculating voltage of a cell

Why for redox galvanic reaction do you not have to multiply by the stoichiometirc coefficient to get the voltage of the cell
by Spencer Cutrow 1A
Wed Jan 20, 2016 11:20 pm
Forum: Calculating Work of Expansion
Topic: Calculating work of expansion from combustion of benzene
Replies: 1
Views: 376

Calculating work of expansion from combustion of benzene

I am seeming to have some trouble 8.93. It asks for the work that must be done for the expansion of gas from the combustion of 1 mole of liquid benzene at 1 bar and 25 degree Celsius. The solution says that temperature of the surroundings must stay the same and the temp must remain at 25. I was wond...
by Spencer Cutrow 1A
Sun Jan 17, 2016 11:47 am
Forum: Calculating Work of Expansion
Topic: Calculating work of Expansion
Replies: 1
Views: 248

Calculating work of Expansion

Im a bit confused as to how to use the equation with the integral in it. Do we have to look at and integrate the equation taking into account the initial and final volumes or can we just use the equivalent with nRT in it?
by Spencer Cutrow 1A
Sat Jan 09, 2016 10:50 pm
Forum: Phase Changes & Related Calculations
Topic: Why does a phase change graph have mutiple plateaus?
Replies: 2
Views: 3643

Why does a phase change graph have mutiple plateaus?

Why in the plot for the heating and subsequent phase changes for water have multiple plateaus where the temperature stays constant?
by Spencer Cutrow 1A
Fri Nov 27, 2015 8:13 pm
Forum: Empirical & Molecular Formulas
Topic: (VIDEO)-Determining the Emperical Formula from Two Reactions
Replies: 3
Views: 518

(VIDEO)-Determining the Emperical Formula from Two Reactions

This is our video on determining empirical formulas, focusing on Problem 1D from the 2006 Final

Spencer Cutrow- 1A- 804 457 421
Sophia Neman- 1A- 604 630 587
by Spencer Cutrow 1A
Sun Oct 25, 2015 4:30 pm
Forum: Hybridization
Topic: Paramagnetism vs Diamagnetism
Replies: 1
Views: 280

Paramagnetism vs Diamagnetism

From reading the course reader, i understand the basic difference between paramagnetism and diamagnetism, but can somebody help explain what this means in a broader context. Essentially, What does having unpaired electrons in a molecule mean for its magnetic field?
by Spencer Cutrow 1A
Sun Oct 18, 2015 9:50 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: VESPR bond angles
Replies: 4
Views: 576

Re: VESPR bond angles

However, while very similar, some bond angles may change while moving down a group because each one of these atoms has slightly different properties because it is larger. For example, you have many molecules like which deviate from the traditional 109 degree angle because of different hybridization ...
by Spencer Cutrow 1A
Sun Oct 11, 2015 10:15 pm
Forum: Lewis Structures
Topic: Lewis Structure Exceptions
Replies: 1
Views: 451

Lewis Structure Exceptions

For future quizzes, will we be provided with a table of electronegativity values so we know if there is possibly going to be an exception in the lewis structure. I saw that somebody else was mentioning an example of BF_3 and how there is actually no double bond because a double bond may violate the ...
by Spencer Cutrow 1A
Sun Oct 11, 2015 9:54 pm
Forum: Empirical & Molecular Formulas
Topic: Atomic Orbitals
Replies: 1
Views: 364

Atomic Orbitals

In regards to Atomic orbitals, are we responsible for knowing the shapes of the 7 f orbitals? Also what exactly does it imply when it mentions that the 5 d orbitals are not always sitting on planes, it says they are in quadrants but how can this exactly be represented. (i know this is relatively har...
by Spencer Cutrow 1A
Sat Oct 03, 2015 7:32 am
Forum: Photoelectric Effect
Topic: Light Intensity
Replies: 2
Views: 420

Light Intensity

Im having trouble understanding why changing the wavelength of the light but not the intensity especially exciuted electrons and actually got them to be removed and then why changing the intensity at that point aided it even more. Can somebody help me out?

Spencer Cutrow
Discussion 1A

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