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A Research on the Chemical Element, Lithium
Lithium is know for not just being the chemical element with an atomic number of three, it is now well known for its abilities in psychiatric treatment, especially in bipolar disorder. The following article focuses on Lithium and how it is used in the treatment of bipolar disorder, and if or not it is reliable. Lithium is m...
The Life and Contributions of Richard Heck, an American Chemist
Richard Heck Richard Heck was born on August 15th 1931 in Springfield Massachusetts and did not develop his love for chemistry until he was in his teenaged years. It came to him when he was growing orchids and he wanted to learn more about chemistry than. When he arrived in the University of California, he majored in chemi...
A Lab Experiment: Heat of Reaction for the Combustion of Magnesium
Heat of Reaction for the Combustion of Magnesium Objective: To determine the change in heat for the reaction between Mg and O. Theory: When a reaction can be expressed as the algebraic sum of a sequence of two or more other reactions, the heat of reaction is algebraic sum of the heats of these other reactions. This ge...
A Lab Experiment on the Effect of Increased Concentration on the Decomposition of H2O2
The effect of increased concentration on the decomposition of H2O2 Research Question: To what extent does the concentration of H2O2 affect its decomposition when around an excess of a Catalyst? Hypothesis: An increase in Molarity will lead to an increase in reaction rate. Theory: In this lab, H2O2 will be...
An Experiment Using MS/MS Techniques to Analyze Mass Spectra
Abstract Two solutions, a 500 μM mixture of leucine and phenylalanine and a 5 mM mixture of leucine and valine, were analyzed for their mass spectra by MS/MS techniques. The relative intensity of the cationic species were approximated as the equilibrium constants, 0.034 and 0.651 respectively. These values were used to det...
A Report on an Experiment to Determine the Measurements of the Emission Spectra of the Cadmium Selenide Quantum Dots
Abstract Cadmium selenide, CdSe, quantum dots were formed by reaction of a solution containing selenium, trioctylphosphine and octadecene with a mixture of CdO and oleic acid in octadecene at 225°C. CdSe crystals then immediately formed, portions of the solution were removed in intervals of 2, then 10 seconds to quench the...
A Study on the Formation Process of Zinc Oxide Nanowires on an Indium Tin Oxide Cover Glass Substrate
Abstract Zinc oxide, ZnO, nanowires were formed on an indium tin oxide cover glass substrate be deposition of a solution of zinc acetate with heating to 350°C, followed by addition of the ZnO seeded ITO glass to a solution of zinc nitrate and hexamethylenetetramine in water for 4 hours at 90°C. The structure of the nanowi...
Determination and quantification of Anions in Aqueous Samples by Ion Chromatography
Determination and Quantification of Anions in Aqueous Samples by Ion Chromatography Abstract Inorganic anions were determined and quantified in tap, stream, and ground water samples using ion chromatography. Standards of chloride, bromide, nitrate, and sulfate were prepared ranging from 10.27 to 0.10 mM, 0.43 to 0.08 m...
Determination of Copper Concentrations in Water Samples Using Spectrophotometry and Bicinchoninic Acid Ligands
Abstract Three water samples: tap water, a simulated pond water sample, and a copper and chloride sample, were tested for copper concentrations by spectrophotometry. Bicinchoninic acid, BCA, was used as a ligand to form a colored complex with copper (I), with high absorbance bands at 360 nm and 560 nm. All copper containin...
Determination of Copper and Lead Concentrations in Aqueous Samples by Atomic Absorption Spectroscopy
Abstract Three water samples, tap water, pond water, and sea water, were measured for their copper and lead concentrations using atomic absorption spectroscopy (AAS). Standard sets of lead ranging from 0.193 to 96.52 µM and copper from 0.314 µM to 62.8 µM were measured for absorbance and calibration curves were prepared us...