ATOC/CHEM 219: Problem Set 5
Due Mar. 14, will be handed back Mar. 18.
1. Calculate the number of Dobson Units assuming that the entire atmospheric O3 column is at a uniform
concentration of 3 1012 molecules cm3 between 15 and 30 km and zero everywhere el
i) A diffraction grating is used to view light interference and can be used to determine
the wavelength of a given light
ii) X-ray diffractions can be used to determine the structure of a crystal
iii) Polarization is when light waves pas
The Lorentz transformation equations are used to determine coordinates of an
event for an observer moving relative to the frame of the original observer
The Lorentz velocity transformation equation is used to determine the speed
of a m
The Compton Effect occurs when x-rays are scattered and there is a shift in
Light can be described as a wave and a particle, depending on the
phenomenon being studied (both are valid, it has a dual nature)
Matter and radiati
SN1 Reaction (Solo bench)
Solomons and Fryhle Chapter 6 (Substitution/Elimination Reactions)
Techniques: Weights and Measures, Filtration, Melting Point, TLC.
The SN1 reaction is a nucleophilic substitution reaction where
Solo Experiment 2 Individual Lab Report
(Save as pdf and submit, due by 12:00 NOON one week after experiment)
Last Name: Pang
First Name: Emma
TA Name: Leonora Adullahu
Date Lab Performed: October 21st, 2016
Date Lab Submitted: October 23rd, 2016
ATOC/CHEM 219: Problem Set 6
Due Apr. 6 (will be returned Apr. 8)
1. The concentration of ozone in ground-level air can be determined by allowing the gas to react with an
aqueous solution of potassium iodide, KI, in a redox reaction that produces molecula
ATOC/CHEM 219: Problem Set 4
Due Feb. 22.
1. HCl has a bond force constant of k = 480 N/m, oscillates at 8.66 1013 Hz, and has an equilibrium bond
length of 0.127 nm.
(a) At what wavelength (in m) and wavenumber (in cm1 ) would you expect such a molecule
ATOC/CHEM 219: Problem Set 2
Due Jan. 25.
1. Assuming 25 C and a total pressure of 1 atm, convert 40 ppb of a pollutant to its value on
(a) the ppm scale
(b) the molecules per cm3 scale
(c) the molarity scale
2. Assuming 25 C and a total pressure of 1 atm
ATOC/CHEM 219: Solutions to Problem Set 4
1. (a) 3.46 m, 2889 cm1
(b) 0.138 and 0.116 nm
(c) 0.145 and 0.108 nm
2. (a) 2 1020 cm2 /molecule
(b) It does absorb, 5 1022 cm2 /molecule
3. The stretching mode of oxygen does not have a transition dipole moment
ATOC/CHEM 219: Answers to Problem Set 1
1. vesc = 58874 m/s
vrms = 1117 m/s
10vrms < vesc . No escape.
2. (a) It is simply a weighted average of the molecular weights of the components that make up air. These
components are real molecules.
(b) 28.96 g/mol
ATOC/CHEM 219: Problem Set 1
Due Jan. 15.
1. The surface gravity on Jupiter is 24.79 m/s2 . If the temperature near the top of Jupiters atmosphere is
100 K and the radius is 69,911 km, will H2 be a stable component of the atmosphere?
2. The molecular weig
ATOC/CHEM 219: Solutions to Problem Set 5
1. 167 DU
2. 3.86 1015 g of O3
3. (a) 0.93
are acceptable answers. Note that the two ks in these answers are not the same (the second one
ATOC/CHEM 219: Problem Set 3
Due Feb. 1. Will be returned Feb. 5.
1. The figure below shows the quantum yields for the photolysis and fluorescence of NO3 .
(a) Write out the three reactions taking place and their quantum yields at = 605 nm and = 620 nm.
Draw the most stable conformation of the following molecules:
ALKENES AND ALKYNES
Give the products of the following reactions:
Cl2 (one mole)
Explain why the following two reactions proceed in an an
Explain the following observations:
a) If (2R)-2-iodobutane is heated in acetone containing radioactively labeled sodium iodide
some of the recovered 2-iodobutane is found to be radioactive. If the reaction mixture is
SUBSTITUTION AND ELIMINATION REACTIONS
a tertiary RX
a weak nucleophile (e.g. H2O or CH3COO) to decrease SN2 and elimination
a low concentration of nucleophile (to decrease SN2 and E2)
a highly polar solvent (to encour