Physical Sciences and Mathematics Commons^™

An Ultraviolet Absorption Study Of The Carbamate Reaction As An Explanation Of Carbon Dioxide Transport In The Blood, Bruce Raymond Cassidy

Honors Theses

This research project was undertaken in order to determine the applicability of ultraviolet absorption spectroscopy as a means of studying the carbamate reaction of carbon dioxide with glycine or diglycine. These compounds are thought to model the physiological substrate hemoglobin. Where for glycine R = -CH2- and for diglycine R = -CH2-CO-NH- CH2-. The reaction involves only the non-ionized alpha-amino group of the conjugate base species. It is therefore necessary that the reaction be run in a moderately basic medium, but at pHs not greater than ten. The ultraviolet absorption spectra for the conjugate acid, zwitter-ion, and conjugate base of …

The Chronopotentiometry Of Bismuth, Cynthia Elaine Wilson

Honors Theses

Whenever a constant current electrolysis is performed without stirring, the potentials of the electrodes change with time because the concentrations change at the surfaces of the electrodes. The principle of chronopotentiometry is based upon the idea that since the current is kept constant, the electrolysis proceeds at a constant rate. When the electrolysis circuit is closed, the concentrations of the substances taking part in the electrochemical reaction at the surface of the electrode start to vary. The electrode takes up the equilibrium potential as given by the Nernst equation provided the reaction is reversible. If the transport of the substances …

The Configuration Of Dichlorodiphenylethers, Wayne Lavelle Brantley

Honors Theses

No definite molecular configuration of diphenylethers has ever been substantiated by experimental proof. Due to the free rotation of the benzene rings about the oxygen linkage, the diphenylether can take any number of spatial configurations. Some theoretical work has been done in trying to determine the molecular structure, but it was felt that careful examination of the high resolution nuclear magnetic resonance spectra of the ethers would be useful in determining a structure.

Synthesis And Nitrosation Of 5,8-Dimethylhydrocarbostyril And Hydrocarbostyril, Harold Leigh Frye

Honors Theses

Research was undertaken this year to complete Huisgen's efforts by synthesizing the six-membered ring N-nitrosobenzo­lactam. This gap was left by Huisgen due to his unsuccessful attempt to produce N-nitroeohydrooarbostyril. My efforts were applied to this problem; namely, the synthesis of the six-membered N-nitrosolactam of hydrocarbostyr11 and 5,8-dimethylhydrocarboetyril.

Electrostatic Models Of Bonding In Molecules, John Joseph Moore Jr.

Honors Theses

Calculations of the energy differences between ground and excited states will be presented. A comparison of the results will be made.

Kinetics Of The Deformylation Of 2,6-Dichlorobenzaldehyde In Moderately Concentrated Sodium Hydroxide, Clifford William Coughlin

Honors Theses

Bunnett, Miles, and Nahabedian (3) studied the kinetics of the alkali cleavage of 2, 6-dichlorobenzaldehyde at base concentrations ranging from .211M. to 1.86M. They found that the simplest mechanism which gives an adequate account of the kinetics is represented by equations (I) and (II). For the step presented by equation (II), kc is the concentration independent second-order rate constant. The purpose of this project was to expand the region studied to the highest feasible base concentration.

Radiation Chemistry Of Aqueous Chloroform Solutions, Henry Douglas Kutz

Honors Theses

Saturated aqueous chloroform solutions have been irradiated with gamma rays from a cobalt-60 source. G values for the formation of HCl in oxygenated and deaerated solutions have been determined. Preliminary work involving the determination of hydrogen gas from the irradiated solutions is reported.

A Review Of (P→D) Π-Bonding In Silicon Compounds, Donald Robert Siebert

Honors Theses

In spite of all the work done since Brockway and Coop's articles appeared in 1938, the problem of the use of silicon's 3d-orbitals in bonding still remains inconclusive.

Attempted Oxidation Of Benzaldehyde With Sodium Bismuthate (Part One). Reduction Of Xanthene By Lithium In Methylamine (Part Two), Gordon Lee Schiff

Honors Theses

The purpose of this investigation was to determine whether sodium bismuthate would oxidize an aldehyde containing only one oxygen atom. Benzaldehyde was selected for these studies because it is a relatively good reducing agent and is not likely to undergo condensation reactions. (Part One).

The primary objective of this research is to confirm Nielsen's proposal that (I) and/or (II) is the oxidation product of 1,2,3,4-tetrahydrofluorene. In doing so, this project is also concerned with the attempted reduction of xanthene and the subsequent oxidation of its reduction product. (Part Two).

Determination Of Calcium By The Coulometric Generation Of Oxalate Ion, Brian Jude David Koch

Honors Theses

The purpose of this research was to develop an electrode sensitive to calcium ion concentration that could be used to detect the endpoint in an automatic titration involving the generation of oxalate by the reduction of lead oxalate.

The Effect Of Oak Leaves On The Leaching Of Trace Metals From Sand, Thomas Elton Goodwin

Honors Theses

Sand is fairly rich in some common trace metals, notably manganese and iron. However, these metals for the most part are in a state which renders them insoluble in water. It is thought that the presence of organic matter (principally leaves) in the water enhances the dissolution of some of these trace metals into the aqueous solution.

This enhancement of dissolution is generally thought to come about in three main ways: (1) The organic matter present lowers the oxygen content of the water, and the metals are reduced into a soluble form, (2) The organic material, some of which is …

Acid-Base Titrations In Non-Aqueous Solvents, Gary Rice

Honors Theses

The acid-base titration is one of the simper methods available to the analytical chemist. Many organic compounds exhibit acidic or basic properties. Proper selection of solvent makes possible analytical determination of extremely weak acids and bases. This paper discusses the three solvent properties that are important in determining the acid-base behavior of a solute.

A Study Of The Curriculum Of The Natural Science Division Of Ouachita Baptist University, Natural Sciences Group

Honors Theses

In our evaluation of the curriculum of the Natural Science Division, we began by reviewing the catalogue descriptions of our courses and evaluating whether the courses meet the objectives given. To do this we divided into departments since our division is so large. Next, we wrote to Hendrix, Little Rook University, Southwestern at Memphis, and State College of Arkansas and compared their course offerings with ours. In this comparison we discovered our strengths and weaknesses and changes that need to be made in our present curriculum. In several cases we decided upon possible alterations which would aid the student going …

The Structure And Use Of Dimethyl Sulfoxide, Nancy Goodson

Honors Theses

It is hard to talk about dimethyl sulfoxide (DMSO) without sounding like an old-time carnival snake-oil salesman. DMSO appears to be good for arthritis, sinusitis, headaches, earaches, sprains, and burns. It reduces swellings, suppresses blisters, kills pain, tranquilizes, and fights germs. It enhances the action of other drugs. It can be swallowed, injected, rubbed on, or dripped in.

Dimethyl sulfoxide is one hundred years old. It was first synthesized by Alexander Saytzeff in Germany in 1866. However, it remained a laboratory curiosity for about three-quarters of a century. No use was found for it until about ten years ago, when …

Studies On The Manganese Cycle, Jim Gilbert

Honors Theses

The first studies on the manganese cycle in impoundments were concerned with the manganese concentrations in and removal from bottom waters of deep impoundments. But as work progressed, the emphasis was more on the investigation of the mechanism by which manganese is dissolved in impounded waters.