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Chemistry Essays

Result for Subject Chemistry:
1168 essays
Sterilizable Fluidized Bed Fermenter Chemistry Assignment
11 pages (2976 words) , Download 1 , Assignment
Free
The author states that zymology is the science of fermentation and the study of fermentation techniques and principles. The term "fermentation" is sometimes used to specifically refer to the chemical conversion of sugars into ethanol, a process that is used to produce alcoholic beverages such as wine, beer, and cider.
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Total Synthesis of Any Natural Product Chemistry Report
5 pages (1399 words) , Download 2 , Report
Free
The total synthesis of aflatoxin B2 serves different purposes just like the other compounds targeted in organic chemistry. First, this synthesis is important in advancing the overall study of organic chemistry for the study of different complex compounds with respect to their structure and the evidence from spectroscopy.
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Synthesis of Diazepam Chemistry Report
9 pages (2447 words) , Download 2 , Report
Free
Wastewater is the major waste product during the synthesis of diazepam considering that a large amount of water was used in washing various chemicals. Large amounts of chemicals are required during the synthesis of medical products. This implies that the wastewater produced contains a variety of substances that are not easy to isolate from the sewage sludge.
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Physical Properties of Materials Chemistry Research Paper
5 pages (1398 words) , Download 1 , Research Paper
Free
The conventional gold does not dissolve in water, and neither does silver. However, a mixture of concentrated nitric acid and hydrochloric acid blended in the ratio of three to one can dissolve gold. This mixture of acids is referred to as aqua regia. Recent research has seen attempts to prepare synthetic gold that dissolves in water.
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Aspirin Production Process Chemistry Report
9 pages (2567 words) , Download 2 , Report
Free
Although a number of other pain relievers have been discovered and manufactured even before the discovery of Aspirin, most of them only managed to gain acceptance as over the counter drugs after the success of aspirin at the beginning of the twentieth century. Currently, the drug is widely used to treat a host of health problems.
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The Benefits and Some Useful Applications of Argon Chemistry Case Study
6 pages (1365 words) , Download 1 , Case Study
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The first noble gas that was added to the periodic table was Argon. The English scientist, Sir Henry Cavendish, in 1785 wanted to explore the other elements of air, apart from oxygen. During his experiments, he found that 99.3 percent of air comprises oxygen, nitrogen, and carbon dioxide.
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Sulphuric Acid Manufacture Chemistry Coursework
16 pages (4088 words) , Download 1 , Coursework
Free
The plant that is to be built in this chemical design paper, will aim to eliminate as much pollution as possible hence, the preferred absorption format like earlier mentioned will be double absorption. And the process involved in this manufacture will be the contact process. In the double absorption process, the piping is wide and the structure is a bit large.
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Determination of the Trends in Mass of a Penny Chemistry Lab Report
4 pages (1276 words) , Download 0 , Lab Report
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Advancement of time to post 1982, saw the change of preference from use of majority of copper to zinc, because of the expensive costs associated with using the former. Instead of 95% copper composition and 5% zinc composition, the minted pennies had around 97.5% zinc composition and 2.5 copper.
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Biochemistry - How BSE Occurs at a Molecular Level Chemistry Coursework
8 pages (2000 words) , Download 2 , Coursework
Free
Since BSE can be spread by eating contaminated food, I would recommend that this country puts measures in place to ensure that only healthy animals are slaughtered and made available to its population. The government of such a country ensures that all food products do not contain brain or spinal cords from cattle. 
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Building Conservation Chemistry Term Paper
14 pages (3795 words) , Download 1 , Term Paper
Free
The Engineering building was designed to depict a sense of aesthetics and ensure full functionalism. The spaces are almost fully utilized other than a few cases that tend to depict the case of modern construction technologies. The design also considered aspects like the capacity of the building occupants and the type of spaces required for its full functionalism. 
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Photochemical Formation of Hydroxyl Radical from Effluent Organic Matter -the Role of Composition Chemistry Term Paper
3 pages (945 words) , Download 1 , Term Paper
Free
The formed radicals are also important in radiation chemistry, as it leads to the formation of oxygen and hydrogen peroxide that enhance corrosions in coolant systems. This is subject to the radioactive environments. However, paper aims at illustrating the
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Qualitative Structure Activity Relationship Chemistry Report
6 pages (1816 words) , Download 1 , Report
Free
It would be vital to generate initially a simple electronic descriptor defined by the atomic partial charge in correlation with other study properties. The QSAR model applied in this study depicts that the global descriptor is nearly among the most significant factors in predicting the activities of biological molecular compounds.
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The Density of Gas Chemistry Assignment
18 pages (4208 words) , Download 1 , Assignment
Free
This assignment also discusses what volume 5.6 moles of sulfur hexafluoride gas will occupy if the temperature and pressure of the gas are 128˚C and 9.4 atm, calculates the number of liters of carbon dioxide measured at STP that could be produced from 7.45 g propane and calculates the heat given off by the burning Mg, in kJ/g and in kJ/mol. 
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Difference between Physical and Chemical Change Chemistry Lab Report
9 pages (2250 words) , Download 0 , Lab Report
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In experiment 1, we aim to show a physical change where we can visualize crystals of copper sulfate when we heat it along with water but no new chemical compound is formed indicating that this is not a chemical change. In experiment 2, we show a chemical change where we burn magnesium ribbon in the air to form MgO.
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Anode Materials in LI-Ion Batteries Chemistry Research Paper
7 pages (1829 words) , Download 1 , Research Paper
Free
Future development requires different ways of improving the anode materials which shall be discussed in this paper. The paper would be of prime importance for engineers and electronic professionals dealing in Li-ion Batteries whereas it will also benefit other researchers and people who are interesting in learning about the anode materials.    
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Catalysts Used in Synthesis of Organic Carbonates Chemistry Research Paper
19 pages (6280 words) , Download 1 , Research Paper
Free
Organic carbonates are carbonic acid esters characterized by two aryloxy or alkoxy groups flanking a carbonyl functional group. They are structural of two kinds, namely – linear and cyclic. Organic carbonates are used in the manufacture of a large number of other industrially important products. The catalysts used in the synthesis of dimethyl carbonate (DMC) and their corresponding yields have been elaborated.
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Electrospinning Nanofibers Using M-Poss and Polycaprolactone Chemistry Report
5 pages (1537 words) , Download 1 , Report
Free
Electrospinning is an already known technology in generating nanofibers with a wide range of diameters. Methacryl POSS (M-POSS) and Polycaprolactone (PCL) are just one of the few polymers explored in the production of electrospun nanofibers. Solvents tried in various combinations and proportions are also tested to produce an output most suited for certain applications. 
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Health Costs And Benefits Of DDT Use Chemistry Research Paper
8 pages (2000 words) , Download 2 , Research Paper
Free
Malaria prevention tools known to date are long-lasting insecticidal nets and Indoor Residual Spraying. The fight against Malaria is a global concern that led to the global framework for coordinated action against Malaria in 1998 in which the World Health Organization recommended a much proactive use of IRS in the control of Malaria transmission.
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Fossil Fuel or Renewable Energy Chemistry Essay
6 pages (1500 words) , Download 1 , Essay
Free
From all the sources of information related to the future of fossil fuels and the studies of research materials related to the feasibilities of alternative energy sources in the convertible forms, it can be restated that fossil fuels are approaching the end of their time. It is need of the hour to encourage the exploitation of all other available resources in nature.
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The Physical Properties of Metals and Their Corrosion Chemistry Lab Report
2 pages (715 words) , Download 2 , Lab Report
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Alloys refer to the combination of two different metals through melting together the metals. This experiment involves comparing the properties of copper and iron, and copper and its
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Chemical Engineering - Evaporator Mass and Energy Balance, and Mechanical Design Chemistry Research Paper
28 pages (7150 words) , Download 1 , Research Paper
Production of the most highly purified crystalline products from the entire system process to meet industrial needs. Moreover, safe disposal of the industrial waste product stream without causing harm to personnel within the industry or in the neighbourhood through concentration and or best methods available. 
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The Elements, Chemical Reactions, Water and Solution Chemistry Thesis Proposal
3 pages (795 words) , Download 3 , Thesis Proposal
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This proposal indicates discussions about the topic and the mechanisms involved in the chemical composition of the subject. An element is a pure chemical material that consists of one particular atom
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The Industrial Production of Aluminium and Its Recycling Chemistry Essay
5 pages (1534 words) , Download 1 , Essay
Free
Aluminum mining not only degrades the environment but poses health problems and workplace safety issues among miners. On the other hand, aluminum end products, such as cans, foil, and kitchen wares, eventually make their way to tons of metal trashes in every city’s landfill. Environmentalists denigrate the extensive mining of aluminum. 
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High Performance Liquid Chromatography Chemistry Assignment
8 pages (2000 words) , Download 2 , Assignment
Free
The stationary phase is responsible for separating and isolating the analyte from the other components of the chemical mixture. The mobile phase can be a gas, liquid or even supercritical fluid while the stationary is immobile and immiscible. Chromatography techniques are important in the treatment of patients overdosed on illicit drugs. 
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The Medicinal Value of Omeprazole Chemistry Coursework
8 pages (2796 words) , Download 1 , Coursework
Free
One typical drug that has been very keen on body disease defenses is Omeprazole, having been useful in the treatment of a host of diseases including dyspepsia, peptic ulcer disease (PUD), Zollinger-Ellison syndrome, gastroesophageal reflux disease among others. With a market name of Losec, Omeprazole comes in several forms including tablets and capsules.
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Proton Exchange Membrane Materials for Fuel Cells Chemistry Annotated Bibliography
13 pages (3431 words) , Download 1 , Annotated Bibliography
Free
This paper evaluates the various research studies' recent advances and challenges regarding the commercial development of PEMFC. Most of the articles have compared the advantages derived from high-temperature PEMFC compared to low-temperature PEMFC, such as high proton conductivity and low permeability. 
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Fe Oxide Experiment-Solid State Chemistry - X-Ray Diffraction and Characterization of Fe Oxides Chemistry Lab Report
8 pages (2441 words) , Download 1 , Lab Report
Free
In general, the underlying powder diffraction data are inappropriate for solving crystal structures. Rietveld method is the most recently utilized; however, it is far from importance since it operates best within comparatively simple cases. It is normally cumbersome to ensure that the unit cell is correct as the corresponding reflections overlap when resolving from each other.
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The Three Techniques of Chromatography Chemistry Research Paper
9 pages (2551 words) , Download 2 , Research Paper
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Chromatography provides a technique of separating and analyzing the components of various mixtures. It has been widely applied in the industry and for study purposes. Various kinds of detectors can be used for the separation process. They include flame ionization detector, thermal conductivity detector and electron capture detector. 
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Phosphorus Cycling, Speciation and Determination Chemistry Coursework
23 pages (6498 words) , Download 1 , Coursework
Phosphorus exists in various forms, either as organic species or inorganic species. Plants absorb phosphorus from soils in the form of phosphate and then, transform it into organic phosphorus compounds. This transformation, speciation, and translocation of phosphorus can be best understood in terms of phosphorus’ oxidation-reduction (redox) fate.
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Phosphorus Speciation in Plants Chemistry Research Paper
21 pages (5930 words) , Download 2 , Research Paper
Phosphorus plays a vital role in the physiological and biochemical processes in plants. It naturally occurs at low concentration, primarily as a product of weathering and organic material degradation. Phosphorus exists in various forms, either as organic species or inorganic species. Plants absorb phosphorus from soils in the form of phosphate. 
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What is the Law of Conservation of Mass Chemistry Book Report/Review
4 pages (1000 words) , Download 2 , Book Report/Review
Free
The author states that the law of conservation of mass was developed by Antoine Laurent Lavoisier, a French chemist, in 1789. Lavoisier was able to carry out a series of laboratory experiments that led to the formulation of this law. These experiments (which are as follows) are done in closed vessels.
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Clinical Biochemistry and Haematology Chemistry Book Report/Review
10 pages (2500 words) , Download 2 , Book Report/Review
Free
The author explains that it is the process is sometimes referred to as differential diagnostic procedure. The term may also be used in reference to any of the incorporated candidate alternatives; referred to as the candidate condition. One of the most important aspects of the differential diagnosis is that it is an essential process of elimination.
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Offsetting Carbon Dioxide Emission: Willingness and Motives to Pay Chemistry Research Paper
10 pages (2500 words) , Download 2 , Research Paper
Free
CO2, the chemical formula for the gas Carbon Dioxide, is a natural chemical compound. It is composed of two oxygen atoms covalently bonded to one carbon atom and it is present in the earth’s atmosphere at a standard pressure and temperature. There are various processes by which this gas is produced. Burning of coals, the fermentation of sugars.
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The Beer-Lambert Law Chemistry Lab Report
6 pages (1854 words) , Download 7 , Lab Report
Free
The author states that light radiations when passed through a colored substance, some of the light radiations may be absorbed and the remainder transmitted through the sample. Therefore, higher concentrations of colored solute, the more light radiations are absorbed and the less light radiations are transmitted through the substances.
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Cyanide as Ecosystem Toxic Chemical Threat Chemistry Essay
7 pages (2037 words) , Download 2 , Essay
Free
As the paper outlines, human beings get in contact with the chemical either through breathing, consumption of foods containing the chemical and through the skin absorption. A person exposed to cyanide has various features among them; rapid breathing, dizziness, weakness, headache, nausea and vomiting and restlessness.
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Validation Exercise in the Measurement of Iron Chemistry Lab Report
5 pages (1480 words) , Download 1 , Lab Report
Free
The most suitable method for analysis of the samples provided should have the highest selectivity, precision, accuracy, detection capability; it should be linear, should not be rugged and should also not be biased. Atomic absorption spectroscopy satisfies the above parameters better than the other methods; therefore, it is the most suitable method for the analysis of the provided samples.
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Validation Exercise in Measurement of Iron Chemistry Lab Report
6 pages (1809 words) , Download 1 , Lab Report
Free
The results bear notable accuracy and precision. Similarly, Molecular Spectroscopy – Colorimetric assay, the results also are linear despite the fact that they do not possess a high degree of accuracy. On the other hand, both REDOX and cation Exchange chromatography represents results with a low degree of linearity. 
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Industrial Hygiene and Toxicology Chemistry Research Paper
4 pages (1000 words) , Download 0 , Research Paper
Free
The fumes of formaldehyde can enter indoors from fibreboards, plywood, particleboard, foam insulations, carpets, fiberglass, paints and floor finishes. Formaldehyde can also be found in automobile exhaust whereas cosmetic nail colors and nail hardeners also contain some amounts of formaldehyde. The root of exposure to formaldehyde is either by inhaling, absorbing through skin or swallowing. 
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Industrial Hygiene and Toxicology Chemistry Research Paper
4 pages (1000 words) , Download 0 , Research Paper
Free
This paper discusses the toxicological effects of the above-mentioned chemicals and the NIOSH requirements for their analysis. Formaldehyde is a clear colorless liquid, with a pungent suffocating smell. It is usually present in aqueous solutions and the fumes produced are flammable. It is a strong oxidizing agent and has a tendency to polymerize.
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Industrial Hygiene Programs in Chemical Companies Chemistry Research Paper
10 pages (2500 words) , Download 2 , Research Paper
Free
Let us take a look at how important it is to establish a program for such and how that program will affect all the existing chemical companies today. Practitioners of industrial hygiene, called industrial hygienists, continue to put their best efforts in creating methods at which employees will not be overly exposed to any potential health hazards while they work for a chemical company.
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Relative Rates of Nucleophilic Substitution Chemistry Assignment
5 pages (1279 words) , Download 2 , Assignment
Free
Nitrate ion makes a poor nucleophile as it comes from HNO3 (a very strong acid). It would not react to give SN1 substitution product due to the 3 atoms of oxygen that pulls away electron density from the nitrogen whereas the ion’s resonance structure also reduces its nucleophilicity. 1-Bromoadamantane is a tertiary halide, yet it is 104 times slower than tert-butyl bromide.
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Mechanical Strength of Proteins and their Thermal Stability Chemistry Research Paper
5 pages (1316 words) , Download 1 , Research Paper
Free
The experimental lists of protein resilience, single-molecule pulling, and protein motion by ANM. The experiments for the unfolding protein; protein is pulled apart by AFM, optical trap, and magnetic force, and proteins other unfold when heated. The study correlated the mechanical strength as measured by F-max with thermal stability as measured by Tm, Cm, etc.
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Increase of the Reduced Glutathione Level in Kidneys of Old Rats Chemistry Research Paper
9 pages (2250 words) , Download 2 , Research Paper
Free
It will involve 20 randomly selected old rats aged 1.5 to 2 years. The control group of 10 rats will be treated with distilled water while the second group will receive oral DAT Through an enzymatic method that follows other laboratory procedures, the level of activity in samples will depict the amount of Glutathione level (GSH) in rats’ kidneys.
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The Production of Acetic Acid via Carbonylation of Methanol Chemistry Coursework
4 pages (1093 words) , Download 0 , Coursework
Free
The proposed schematic process includes the addition of iodide salt, methyl iodide, methyl acetate, and water in facilitating the Rhodium catalyst so that the invention meets the principal objective of generating high-quality acetic acid wherein the designed reaction is capable of lowering the synthesis of undesired by-products while the rate of reaction is maintained. 
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How Recrystallization Works Chemistry Assignment
5 pages (1486 words) , Download 1 , Assignment
Free
Although acetanilide and phenacetin are not appreciably acidic, acetaminophen (like aspirin) is a stronger acid than water. What problem would you encounter if the unknown component were acetaminophen rather than acetanilide or phenacetin, and you extracted the aspirin with 5% NaOH? Explain, giving the equations for any relevant reactions.
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Industrial Hygiene in the Chemical Industry Chemistry Coursework
7 pages (1750 words) , Download 2 , Coursework
Free
Industrial hygiene is defined as the process by which identification, evaluation and controlling of the industrial hazards take place. The primary intention of industrial hygiene programs is to ensure that workers get the least exposure to the various forms of hazards. Awareness about industrial hazards has been since ancient times.
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The Use of Isotopes in Medicine Chemistry Literature review
6 pages (1678 words) , Download 2 , Literature review
Free
Isotopes of an element have the same atomic number. Nonetheless, isotopes do not share the same number of neutrons within their nucleus. As a result, isotopes are said to have divergent atomic weights. There are two major types of isotopes. These are radioactive and stable isotopes. Radioactive isotopes as those whose nucleus is unstable. 
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The Asbestos Disaster Chemistry Coursework
12 pages (3000 words) , Download 2 , Coursework
Free
This humanitarian disaster was created by industry's utilization of asbestos, an imported material. Business executives and government leaders, civil servants in addition to political leaders were responsible for letting loose a ferocious assault on ordinary men along with women who were toothless in the face of this lethal carcinogen
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Parasympathetic Nervous System Chemistry Assignment
8 pages (2277 words) , Download 2 , Assignment
Free
This assignment also identifies paramedic indication for the drugs, lists the molecular target involved in the identified interaction, the type of interaction and briefly explains how this interaction of the drug with the molecular target accounts for the observed therapeutic effect for that indication.
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Description the Difference between a Mixture and a Compound Chemistry Essay
4 pages (1000 words) , Download 0 , Essay
Free
A compound is a substance made up of two or more elements combined in a constant ratio (Campbell and Reece, 2004). By virtue of the law of constant composition, the proportion of the mass of elements forming a chemical compound is always fixed no matter the source of the compound.
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