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Hemoglobin, 2003.
This paper discusses the chemical structure and function of hemoglobin.
1,150 words (approx. 4.6 pages), 5 sources, MLA, AU$ 49.95
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Abstract
This paper explains how hemoglobin works. The author describes the oxygen-carrying capacity of different hemoglobins and what affects it. The paper relates the way hemoglobin acts in different under different physiologic conditions.
From the Paper
"Hemoglobin is an oxygen-carrying protein and acts as such in most mammals. Typically hemoglobins have a tetrameric structure consisting of two polypeptide chains of amino acids each and two polypeptide chains of amino acids each with each subunit ..."
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NMR spectroscopy, 2003.
This paper discusses the use of NMR spectroscopy and x-ray crystallography in nucleophilic substitution reactions.
920 words (approx. 3.7 pages), 3 sources, MLA, AU$ 39.95
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Abstract
This paper critiques NMR spectroscopy and x-ray crystallography in nucleophilic substitution reactions. The author describes methods of the scientific procedures. The paper discusses the principles and procedures used in the study.
From the Paper
"Bassindale Parker Taylor Aunerb and Herrschaft measured the x-ray crystal structure of four halodimethylsilylmethyl quinolinones to model the reaction profile for the nucleophilic substitution of silicon. They developed a method to obtain similar structural.."
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Artificial Flavors, 2005.
This paper examines the manufacturing and utilization of artificial flavors.
1,150 words (approx. 4.6 pages), 6 sources, MLA, AU$ 49.95
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Abstract
This paper about artificial flavors gives examples of different chemicals and the flavors they produce. The author also relates how McDonald's got their french fries to have a distinctive taste. The paper includes the dangerous side effects of some of the chemicals used in artificial flavors.
From the Paper
"Artificial flavors are added to manufactured foods to change or augment its taste. Flavouring Nature-identical flavorings are the chemical equivalent of the natural flavor but, instead of being extracted from the source, they are synthesized chemically."
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Voltaic Cell, 2005.
An analysis of a laboratory experiment with a homemade voltaic cell.
1,150 words (approx. 4.6 pages), 2 sources, APA, AU$ 49.95
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Abstract
This paper describes an experiment with a homemade voltaic cell using a piece of citrus fruit. The paper explains that pairs of metals were inserted into the fruit and the potential was recorded. The metals -- zinc, copper, aluminum, iron, tin, magnesium, lead and nickel -- were paired in all possible combinations. The paper includes equations for the reactions and calculations of Eored.
From the Paper
"This laboratory used a piece of citrus fruit as a voltaic cell to determine the relative positions of a series of different metals in a series of electromotive forces by a qualitative comparison. A quantitative comparison was also determined by using..."
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Chemical Warfare in Insects, 2003.
A description of chemical warfare in insects.
3,450 words (approx. 13.8 pages), 16 sources, APA, AU$ 149.95
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Abstract
This paper describes chemical warfare in insects. The paper begins by offering a definition of the chemistry of vision. Next the paper discusses the role of polycyclic aromatic hydrocarbons in cancer. Then the paper explains the effect of chlorfluorocarbons on the ozone layer, nature, chemistry and sources of petroleum.
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Determining Solubility Constant, 2005.
A write-up of a chemistry experiment to determine the solubility constant of Ksp for NaCl and KCI.
1,150 words (approx. 4.6 pages), 4 sources, APA, AU$ 49.95
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Abstract
This paper describes a chemistry experiment in which the solubility constant, Ksp, for NaCl and KCl is determined. The laboratory procedure is described, the results are given, and the data analyzed. The paper also calculates molarity of the solutions used and assesses the experimental error.
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Acid-Base Reactions, 2005.
An experiment on acid-base reactions.
920 words (approx. 3.7 pages), 1 source, APA, AU$ 39.95
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Abstract
This paper describes a chemistry experiment on acid-base reactions and calculates the ka, kb, pka and pkb from the pH determinations. The paper explains that the experiment involves measuring the pH of solutions of vinegar (acetic acid), seltzer water (carbonic acid) and ammonia.
From the Paper
"This laboratory is concerned with the determination of the pka and pkb of weak acids and bases. Most of the acid or base of weak acids or bases exists in the molecular form in solution with little ionization. There are standard formulas for calculation..."
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Buffer Systems, 2005.
A description of a chemistry experiment exploring the carbonate bicarbonate buffer system.
1,150 words (approx. 4.6 pages), 2 sources, APA, AU$ 49.95
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Abstract
This paper describes a chemistry experiment exploring the carbonate/bicarbonate buffer system. The paper explains how the testing of the buffer was conducted and discusses the reaction of the individual ingredients, sodium carbonate and sodium bicarbonate, to the addition of acid or base. The paper also explores the reaction of the combined solution to acid and base.
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Acid-Base Trilogy, 2005.
A write-up of a chemistry lab about acid-base titration.
1,150 words (approx. 4.6 pages), 4 sources, APA, AU$ 49.95
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Abstract
This paper describes a chemistry lab about acid-base titration, using milk of magnesia (magnesium hydroxide) and vinegar (acetic acid). The graph of the titration is drawn, and questions answered about the slope and plateau of the graph. The paper also gives the point of equivalence and the dissociation reaction for magnesium hydroxide.
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Equilibrium, 2005.
A write-up of three different chemistry experiments dealing with equilibrium.
3,910 words (approx. 15.6 pages), 4 sources, APA, AU$ 169.95
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Abstract
This paper describes three chemistry experiments: (1) about equilibrium and equilibrium shifts, (2) about the determination of equilibrium constants, and (3) about the kinetics of the crystal violet reaction. The paper details the experimental procedure, presents a graphical analysis and makes calculations relevant to the experiments.
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Freezing Point Depression, 2005.
A description of a chemistry experiment involving freezing point depression.
1,380 words (approx. 5.5 pages), 4 sources, APA, AU$ 59.95
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Abstract
This paper describes a chemistry experiment involving freezing point depression by ethyl alcohol and isopropyl alcohol. The experiment tested the effects of these two alcohols on the freezing point of distilled water. From the experiment results, the paper calculates freezing point depression, molarity of the alcohols, density of the alcohols and purity of the alcohols.
From the Paper
"This laboratory examined how the colligative properties of solutions affects their freezing point of ethyl alcohol..."
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Reaction Kinetics, 2005.
A description of a chemistry experiment looking at the kinetics of cooling water.
1,150 words (approx. 4.6 pages), 4 sources, APA, AU$ 49.95
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Abstract
This paper is a writeup of a chemistry experiment examining the reaction kinetics of cooling water. The paper includes graphs of temperature vs. time. The paper shows how to determine the reaction rate from the slope of the line of the graph.
From the Paper
"This laboratory looked at reaction kinetics. A thermometer was suspended in a large test tube with a clothespin so that it was not touching the sides or bottom. The thermometer was allowed to come to room temperature..."
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Escape of CO2, 2005.
A chemistry experiment studying the escape of CO2 from Seltzer water.
1,150 words (approx. 4.6 pages), 3 sources, APA, AU$ 49.95
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Abstract
This paper describes a chemistry experiment that examines the escape of CO2 from Seltzer water into distilled water, and from a solution containing NaCl into a solution containing CaCl2. The paper demonstrates that the escape of the gas was measured at 5-second intervals until the volume of gas did not increase.
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Reaction Rate, 2005.
A chemistry experiment about reaction rates.
1,150 words (approx. 4.6 pages), 4 sources, APA, AU$ 49.95
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Abstract
This paper describes a chemistry experiment looking at the various factors which affect reaction rates. The paper studies the affects of temperature, surface area and catalysts (NaCl and vinegar) on the dissolution of Alka Seltzer tablets. The paper demonstrates that increases in time and surface area as well as the presence of a catalyst shortened the time needed for the tablets to dissolve.
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Phase Changes of Water, 2005.
A write-up for an experiment regarding phase changes in water from solid to liquid to gas.
1,150 words (approx. 4.6 pages), 4 sources, APA, AU$ 49.95
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Abstract
This paper describes a chemistry experiment, which studied phase changes in water from solid (ice) to liquid (water) to gas (steam). The paper describes the experimental method, gives the results, and analyzes the data in terms of Kinetic Molecular Theory and the effects of pressure on boiling water.
From the Paper
"In this lab, the heating curve generated when ice makes the transition between solid to liquid to gas was investigated. The boiling point and current atmospheric conditions were compared at the locations where different students..."
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Charles' Law, 2005.
A write-up of a chemistry laboratory experiment based on Charles' Law.
920 words (approx. 3.7 pages), 4 sources, APA, AU$ 39.95
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Abstract
This is a write-up of a chemistry laboratory experiment looking at Charles' Law, which states that at constant pressure, temperature and volume are directly proportional to each other. The paper describes two experiments: (1) a gas is heated and its temperature and volume change noted and compared; and (2) a candle is burned in an inverted test tube set in a pan of water. The paper describes that as the oxygen in the tube is used up, water rises in the tube, and when there is no more oxygen left the flame is extinguished.
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