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Chemistry Essays

Result for Subject Chemistry:
1168 essays
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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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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Therapeutic Polysaccharides Chemistry Report
7 pages (2195 words) , Download 1 , Report
Free
The potential clinical usefulness of these substances needs further research. It is clear that polysaccharides derived from higher plants, mushrooms and algae are a reliable and significant source for therapeutic medicine and represent a rich resource for potential innovation and improvement of new compounds of medical value.
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Crude Oil Refining Chemistry Coursework
7 pages (1902 words) , Download 1 , Coursework
Free
The separation of crude oil into lighter fractions often produces four distinct categories of oils. These are light distillates, middle distillate, heavy distillates and miscellaneous distillates. Light distillates are composed of LPG (liquefied petroleum gas), gasoline (or better known as petrol), kerosene, jet oil fuel and other kinds of aircraft fuels.
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States of Matter Chemistry Assignment
6 pages (1874 words) , Download 1 , Assignment
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This assignment also calculates the rate of heat transfer through a 0.64 square meter of a plaster wall 3.2 cm thick, discusses the different types of fire extinguisher and on what can they be used, the differences between a premixed and a diffusion flame and the temperature profiles of each type of flame. 
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The Use of Free Radicals in the Treatment of Disease Chemistry Report
7 pages (2377 words) , Download 1 , Report
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According to epidemiological studies, there is a direct correlation between the amount of antioxidants taken with food and a reduction in the risk of cancer. But, many questions remain unanswered. For example, it is not clear which antioxidant is the most effective along with its ideal amount. The effects of antioxidants on patients who have been diagnosed with cancer should be investigated.
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Biochemical Markers During High-Intensity Interval Training Chemistry Term Paper
6 pages (1791 words) , Download 1 , Term Paper
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The process of synthesizing energy that is required for the proper functioning of the muscular system is marked by a cascade of events. Each process involved in the synthesis of energy generates products that can be used as biochemical markers such as lactic acid, ATP, ADP, calcium, phosphocreatine, glycogenolysis and glycolysis during high-intensity interval training. 
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Parasympathetic Nervous System Chemistry Assignment
8 pages (2277 words) , Download 2 , Assignment
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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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The Use of Isotopes in Medicine Chemistry Literature review
6 pages (1678 words) , Download 2 , Literature review
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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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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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The Medicinal Value of Omeprazole Chemistry Coursework
8 pages (2796 words) , Download 1 , Coursework
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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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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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Catalysts Used in Synthesis of Organic Carbonates Chemistry Research Paper
19 pages (6280 words) , Download 1 , Research Paper
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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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Qualitative Structure Activity Relationship Chemistry Report
6 pages (1816 words) , Download 1 , Report
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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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Polymer Nanofilm Coatings Chemistry Report
7 pages (2607 words) , Download 1 , Report
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Nanotechnology forms part of the most promising areas of biomedicine. This paper reviews nano-film biomaterials, which are functional and thin nanoscopic films based on polymers that act as biocompatible interfaces. In addition, there are strategies towards films that have independent mechanical rigidity and controllable bioactivity.
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Saving the Future of Our Planet Chemistry Case Study
13 pages (3551 words) , Download 1 , Case Study
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Ways in which human beings use to meet their energy needs have drastically evolved from the use of wind and water to coal and recently nuclear fuel. Nuclear fuel was believed to be environmentally friendly compared to others but this turned out to be untrue. All these forms of fuel release harmful gasses to the environment.
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PM 2.5 Pollution Is Poisonous Chemistry Essay
6 pages (1844 words) , Download 1 , Essay
Free
Particulate Matter, commonly known as PM, is a collection of fine particles of either solid or liquid matter suspended in the atmosphere. The particles normally have a diameter of less than 2.5 micrometers. The size of particles is normally measurable by an aerodynamic diameter, which aids in determining the category of a particle.
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The Level of the Key Biomarkers Chemistry Lab Report
13 pages (3329 words) , Download 1 , Lab Report
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Patient A was classed as either normal or impaired fasting hypoglycaemic. Patients B and E were diagnosed as fasting hypoglycaemic since they had significantly lower blood glucose levels at fasting (1.0nmol/ml and 1.1nmol/ml). Patient B also had increased concentrations of insulin and C-peptide (1.70nmol/ml and 0.60nmol/ml). Conversely, Patient D had diabetes mellitus. 
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Insertion of Unsaturated Species Into M-C Bonds in Cyclometallated Complexes Chemistry Lab Report
11 pages (3645 words) , Download 1 , Lab Report
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Cyclometallated compounds that incorporate internal imine functionality are proposed as intermediates in a number of organic transformations. Cyclometallated metal complexes which include a nitrogen donor atom are known to possess excellent photoreduction property and reactivity towards C-H bond functionalization reactions.
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Determining the Relationships Between Pressure, Temperature and Volume Chemistry Lab Report
9 pages (2385 words) , Download 1 , Lab Report
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The three Gas Laws have dependent and independent variables, and altering the independent variable would result in the dependent variable to change. It was found that changing the pressure of gas caused an inverse change in the pressure it exerted, changing the temperature caused a change in the pressure and changing the temperature of gas caused the volume to change.
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Scientific Challenges Chemistry Literature review
6 pages (1732 words) , Download 1 , Literature review
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Amyloidogenesis is another problem. It involves the purification of the recombinant protein that originates from diverse systems such as animal cells and bacteria. In this process, the proteins combine to form inclusions and take the amyloid form. As a result, the amyloid hinders the manufacture of therapeutic proteins by pharmacists. 
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The Understanding of the Whole Concept of Corrosion Chemistry Lab Report
10 pages (2704 words) , Download 2 , Lab Report
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Galvanic corrosion occurs when two metals, or rather a galvanic metal couple, are placed in a common electrolyte and are electrically connected. As observed during the experiment, the behavior of the two metals in the above conditions was dissimilar. One metal acted as the anode (corrodes) while the as the cathode.
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Comparison between the Tensile Copper and Aluminum Properties Chemistry Report
8 pages (2023 words) , Download 1 , Report
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This laboratory was setup got to study the tensile properties of aluminum and copper metals. The following apparatus was used to carry out the experiment: the TecQuipment’s laboratory which is the scale benchtop tensile testing machine, the Extensometer, and the Dogbone which was shaped in different shaped samples of yellow brass.
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The Separation and Purification of Benzoin and Benzoic Acid Chemistry Lab Report
6 pages (1583 words) , Download 1 , Lab Report
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The simplest methods utilize different solubility exhibited by most compounds in water compared to organic solvents. In this case, the experiment was based on the fact that benzoic acid is soluble in organic solvents as well as it is easily converted to water-soluble benzoate anion. In order to carry out this separation, a sealable funnel was used.
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Energy Transfer and Thermodynamics Chemistry Assignment
9 pages (2506 words) , Download 2 , Assignment
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This assignment also uses the table of thermodynamic data to calculate S and H for the given reactions, mathematically expresses Fouriers Law defining all the terms used within it, compares the values of thermal conductivity of metals, insulating materials and gases and explains the Stefen-Boltzman Law. 
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Analysis and Application of Voltammetry Chemistry Report
9 pages (2742 words) , Download 2 , Report
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With the modification of electrodes, they have found broad applications in areas of analysis that previously seemed improbable. As with any analytical method, precision and accuracy have been the theme and couple with this property, electrochemical analysis and voltammetry in particular with the added advantage of reducing cost and being less time-consuming. 
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Fiber Optics Chemistry Literature review
7 pages (2073 words) , Download 2 , Literature review
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A fiber-optic communication channel consists of three major components. They include the transmitter, information channel, and receiver. The generator converts electrical signals into light pulses. The information channel is made of thin silica, which transmits signals in the form of modulated light pulses.
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Determining the Formula of Hydrate Chemistry Lab Report
6 pages (1559 words) , Download 1 , Lab Report
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Most solid chemical compounds contain some water in small amounts that may be adsorbed on the surface of the solids whereas other solid compounds contain large quantities of water that are chemically bonded to the crystal. Chemical compounds that contain discrete quantities of water molecules in their crystal structure are called hydrates.
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The Philosophy of Chemistry Chemistry Term Paper
7 pages (2130 words) , Download 2 , Term Paper
Free
The neglect of chemistry by the philosophers of science has been unfortunate. Recent studies have proven that chemistry can contribute a tremendous deal of knowledge to overall science as it relates to sciences such as physics, psychology, and biology. These contributions include atomist, reductionism, chemical explanation, and physical law.
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Greenhouse Effect and Global Warming Chemistry Coursework
10 pages (2747 words) , Download 2 , Coursework
Free
Climate change has a negative impact on all living organisms in the natural environment either for the short-term and for the long-term. For short climate change, raise the sea level which will get over the coastal habitats everywhere, causing severe flooding, erosion, and disruption of low lying shorelines. 
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The Use of Pipettes Chemistry Lab Report
12 pages (3323 words) , Download 1 , Lab Report
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Another experiment was carried out to make a stock solution and dilutions in order to achieve standard dilutions. Solutions are prepared with respect to their molar concentration and mass concentrations. The initial concentrations were diluted to achieve the required concentrations. As the dilution increased the concentration decreased.
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Production of P-Amino Phenol Chemistry Report
8 pages (2344 words) , Download 2 , Report
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The compound is one of the three aminophenol isomers with the other two being 3-aminophenol and 2-aminophenol. Due to its slight hydrophilic properties, p-Amino phenol is moderately soluble in alcohols and can easily be dissolved in hot water. In the presence of any base, p-amino phenol readily oxidises steadily to form both cation and anion.
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Assessed Questions for Physical Chemistry Chemistry Assignment
27 pages (6836 words) , Download 1 , Assignment
This assignment also explains what is meant by activation energy, Molar conductivity values, writes the full electronic configurations of the atoms and ions, calculates the wavelength of the radiation emitted by a hydrogen atom when an electron makes a transition, uses VSEPR theory to predict the shape of the molecule. 
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Is Climate Change Caused by Human Activities Chemistry Term Paper
8 pages (2201 words) , Download 1 , Term Paper
Free
Climate change is the change in the significant weather of a given area that can take decades or more years to determine. Climate change can be statistically identified by measurement of the mean changes or the changes in the properties of the mean. Climate change refers to the overtime change of the climate.
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The Health Effect of Electromagnetic Radiation Chemistry Coursework
8 pages (2238 words) , Download 1 , Coursework
Free
Scientific experiments have not proved that EMF has health effects on humans, but there are unclear results of the negative relation on the strong concentration of EMF on the biological system. Some of these experiments were conducted with strong EMF or low frequency. There were no empirical studies to prove the relationship between health effects and the influence or presence of EMF.
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Grignard Reaction Chemistry Lab Report
6 pages (1663 words) , Download 1 , Lab Report
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The overarching rationale of the experiment is gaining an understanding of the way Grignard reagents that are organometallic in nature can be employed in the generation of so-called carbon-carbon bonds. Organometallic compounds in themselves are of great use in many synthesis reactions in organic chemistry.
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Definition of Imaging Glycosylation Chemistry Report
10 pages (2583 words) , Download 1 , Report
Free
The protein-directed imaging such as Green Fluorescent Protein remains an unreactive method of glycosylation prompting our research team to design a metabolic functionalized sugar labeling approach to image particular structures on local glycoproteins. Regrettably, this devised approach is limited to the revelation of protein identity being labeled glycan.
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Conjugation of Carboxylic Acid to Gold Nano Tip Chemistry Lab Report
9 pages (2338 words) , Download 1 , Lab Report
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The mechanical and electronic transport properties of the underlying 4-(methylthio) benzoic acid junctions are used density functional theory. The prevailing mathematical outcomes depict that the rupturing force of the 4-(methylthio) benzoic acid is approximately 0.6±0.1 nN0.6±0.1 nN as described within the experiment since they are extremely smaller. 
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Alkalinity in Natural Waters Chemistry Lab Report
6 pages (1758 words) , Download 1 , Lab Report
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The alkalinity of a water sample is defined as the capacity for solutes it contains to react with acid and neutralize it. The alkalinity property of a sample can be determined by titration using a strong acid with the endpoint of the titration giving the pH at which almost all the solutes responsible for the alkalinity have reacted.
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Emulsion Technology Chemistry Lab Report
7 pages (2062 words) , Download 1 , Lab Report
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An emulsion is a setup of two immiscible liquid phases with one of them dispersed throughout the other in the form of tiny and fine droplets. The phase consisting of tiny droplets is defined as the internal or disperse phase whereas the suspension phase is classified as the external or continuous phase. Water and oil are the two major constituents of pharmaceutical emulsions.
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Clinical Chemistry - Immunoassay Chemistry Lab Report
7 pages (1961 words) , Download 1 , Lab Report
Free
The best curves were obtained from the results and displayed in the results as well on the IgG concentrations against the absorbance. There is a realization that the resultant curves from 1/2000 and 1/4000 dilutions utilized more antibodies. Monoclonal antibodies are more expensive and their affordability is limited.
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Mass-Spectrometer Design Chemistry Report
11 pages (2932 words) , Download 1 , Report
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The report also outlines an evaluation of the design specifications, as well as the limitations and recommendations pertaining to the subject in order to achieve better reliability regarding the use of the instrument. This is a report where one learns in detail the various design specifications as well as the reasoning for the purpose of the construction of the mass spectrometer.
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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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Pharmacological Effects of Si Wu Tang Chemistry Case Study
11 pages (3661 words) , Download 1 , Case Study
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Specifically, the study of Dai et al. (2002) shows that Si Wu Tang which is composed of 25, 100 microg/ml Paeoniae Radix and 100 microg/ml of Rehmanniae Radix and Chuanxiong Rhizoma has an antipruritic and anti-inflammatory effects when 250, 500 and 1000 mg/kg of Si Wu Tang decoction compound was administered to several mice with skin diseases.
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Metabolic and Biochemical Alterations Chemistry Assignment
8 pages (2389 words) , Download 1 , Assignment
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Although moderate exercise can benefit health, rigorous exercise regimes can be sometimes hazardous to health. Regular exercise will reduce the risk of chronic diseases such as cancer, diabetes, cardiovascular diseases. However the amount of exercise required to achieve beneficial effects has not been clearly defined but to gain maximum health benefits, the frequency, intensity and duration of exercise will be important determents.
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Nucleophillic Substitution Reaction Chemistry Essay
4 pages (1000 words) , Download 1 , Essay
Free
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Both SN1and SN2 components of bromobenzene do not undergo any reaction. It is attributable to bromobenzene stability and the fact that it has vinylic bromine and allylic, which are very stable.
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Introduction to Combustion and Fire Chemistry Assignment
20 pages (5441 words) , Download 1 , Assignment
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Units of quantities that are derived from these fundamental units are called derived units. These derived units can be expressed in terms of fundamental units. For example the unit of volume, litre, is derived from metres (1L = 0.001 m3), while the unit for force, Newton, is derived from mass, length, and time (1N=1kg m s-2). (Lewis & Evans 2006)
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Recombinant Proteins Chemistry Coursework
12 pages (3414 words) , Download 1 , Coursework
Free
The DNA sequences that store this type of particular information are known as ‘genes’, while the remaining DNA sequences help in regulating this stored genetic information. DNA is located mainly within the nucleus of a cell and is known as the nuclear DNA; however, there are small amounts of DNA located within the mitochondrial cell, which is known as the mitochondrial DNA or mDNA.
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Production of a Standard Curve Between Absorbance and Direct Bacteria Account Chemistry Lab Report
9 pages (2259 words) , Download 1 , Lab Report
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The result was positive, because the S. aureus and E.coli grow around the filter paper, so the measure inhibition zone for each compound of sliver with different concentration is zero. As a result, it means that 1PPM of each compound of silver does not work for killing bacteria.
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Determination of the Kinetic Constants With Three Alcohol Substrates Chemistry Lab Report
7 pages (1916 words) , Download 1 , Lab Report
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Yeast ADH has a high affinity for propane -1-ol as suggested by its Km value which is lower than that of ethanol (Table 3). However, the negative value obtained for Km in the case of butane-1-ol suggests that the concentration of the substrate might have been too low since the enzyme concentration used had been tripled.
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