Rates
Quantum Models
Quantum Models part 2
Spectroscopy
Important Equations
100

These two pieces make up the units for the rate constant

What are molarity(concentration) and time?

100

The probability of finding a particle at a node in a wave-function.

What is zero?

100

The probability of finding the particle within the first two peaks for the n=3 state.

What is 2/3?

100

The major requirement for a molecule to have a rotational spectrum.

What is a permanent dipole?

100

v = (1/2π)√(k/μ)

What is the formula for the harmonic frequency?

200

The order of the reaction based on this diagram

What is second order

200

The conditions for the formation of molecular orbitals.

What is symmetry and similar energy?

200

The model for the shown wavefunctions.

What is the harmonic oscillator model?

200

The type of light associated with molecular vibrations.

What is IR light?

200

ΔE= 2h(J+1)Be

What is the energy for a rotational transition?

300

These species are both made and consumed during a reaction mechanism

What is an intermediate?

300

The ionization energy for a Be3+ atom.

What is -217.6 eV?

300

The De Broglie wavelength for an electron moving at half the speed of light.

What is 4.85x10-12 m?

300

This value dictates chemical shift in NMR

What is electron shielding?

300

nλ = 2d sin(θ)

What is Bragg's equation?

400

N2 + 3F2  ->  2NF3

F2 decreases at ______ the rate which NF3 increases

What is 3/2

400

The three conditions for a well behaved wave-function.

What is single valued, continuous, and quadratically integrable?

400

This part of the Hamiltonian prevents us from mathematically solving the Schrodinger equation for many electron atoms.

What is the electron-electron repulsion piece?

400

The seven types of crystal lattices

What is Triclinic, Monoclinic, Orthorhombic, Rhombohedral, Tetragonal
, Hexagonal, Cubic


400
ve+2(J+1)Be

ve-2JBe

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What is the frequency of the roto-vibrational transition?

500

The graph below shows the time-dependent change in the concentration of NO.
If NO decomposes at 520 °C based on the following equation,
2 NO(g) → N2(g) + O2(g)what is the average rate of consumption of NO over the time interval 0—40 s?

What is 0.005 M/s?

500

The energy of the 2nd vibrational excited state for a molecule with a fundamental frequency of 5.00x1013 Hz.

What is 8.28x10-20 J.

500

The wave function for the n=3 state for a particle in a box.

What is ψ3= √(2/l)sin(3πx/l)

500

The selection rules for the vibrations of polyatomic atoms.

What is the change in vj = ±1 and the jth normal mode vibration must change the molecular dipole moment

500

=(n2h2)/(8ml2)

What is the energy for particle in a box?

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