Recent content by cep

Schwartz reagent-- NMR/MS/IR Hi Everyone, I'm looking for some spectral data on Schwartz reagent (ZrCp2ClH); at the very least, I'd like to find a 1H NMR spectrum, but I would also like to see mass spec and IR spectra. I have had zero luck finding a paper that reports characterization data...

Cool, thanks guys :)

Homework Statement On this problem set, there are multiple questions regarding the probability of events: 1. Consider a box of volume V containing N molecules. Assume that the molecules in the box are free of all interactions, that is, that the equation of state is that of an ideal gas...

Hi all, I was working with an emitter follower circuit similar to this one: http://upload.wikimedia.org/wikipedia/commons/b/b8/NPN_emitter_follower.svg , the only difference being that in my circuit, there is a 100kΩ resistor between the Vin site and the transistor. RE is also 100kΩ. I...

Hello, I'm working on this Mathematica assignment, just basic tutorial-type stuff (you can ignore the details about pyrene, not important), and the fit on this function won't converge. Someone in my class said it converged fine, so I was wondering if anyone notices any errors in my work...

Okay, I found one error in my integration. The revised function is E = 1-(3/5)a / [a(a^2/7-1/15)]. Still has the same discontinuity problems, though.

Homework Statement Consider a particle in a box in the interval [-a,a]. Use the trial wavefunction ψT = x(a-x2) to obtain an approximate energy for the first excited state of the box as a function of a. Homework Equations Schrödinger equation, Hamiltonian for atomic units is...

I've tried both of those-- still orders of magnitude too large.

Homework Statement The J=0 to J=1 transition fro 12C16O carbon monoxide occurs at 1.153x105 MHz. Calculate the value of the bond length in CO. Homework Equations 2B = h/(4π2I) μ = m1*m2/(m1+m2) I = μr2 The Attempt at a Solution I = 6.61x10-34/ (4*π2*1.153x108) = 1.45x10-43...

*proof that a potential drop causes reflection, not proof of which coefficient is zero.

... really? I'm skeptical-- the problem asks for a proof.

Sorry, it lost the sub/superscripts. Here are the rewritten equations For x<0, ψ(x) = 1/√(k0)*(Arighteik0x+Alefte-ik0x) where k0 = √[2m(E+Vo)/hbar2] For x>0, ψ(x) = 1/√(k1)*(Brighteik1x+Blefte-ik1x) where k1 = √[2m(E)/hbar2]

Homework Statement Hello! I'm looking at a situation where there is a finite potential Vo for x<0, but zero potential for x>0. For a particle moving from left to right, I'm wondering what coefficients for the solution to the Schrödinger equation are equal to zero, and also how to prove that...

QM-- Stefan's constant vs radiation constant Homework Statement (a) Using Planck's formula for the energy density ρ(λ,T), prove that the total energy density is given by ρ(T)=aT4 where a = 8π5k4/(15h3c3). (b) Does this agree with the Stefan-Boltzmann law for the total emissive power? The...

Rayleigh criterion and circular apertures-- check my work? Homework Statement Think of the pupil of your eye as a circular aperture 5.00 mm in diameter. Assume you are viewing light of wavelength 550 nm, to which your eyes are maximally sensitive. a) What is the minimum angular separation...