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Chemistry Essays

Result for Subject Chemistry:
1169 essays
A Critical Role of Radiation in Combustion Reactions Chemistry Assignment
6 pages (1636 words) , Download 0 , Assignment
Free
Thermal radiation, like other electromagnetic radiation, does not require a medium to propagate. It can easily pass through a vacuum. It travels by means of electromagnetic waveforms, and can also be characterized by its wavelength, energy, and frequency. It is also important to note that radiation energy from the source is emitted outwards in straight lines and travels in all directions.
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Energy Transfer and Thermodynamics Chemistry Math Problem
10 pages (2650 words) , Download 0 , Math Problem
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The law implies that the thermal equilibrium in the Thermodynamic systems is an equivalence relation between the systems as studied under these systems. The mathematical equation for the law is represented with the use of symbols T=Temperatue, and A, B, and C are the three systems, and the equivalence relation among all these systems is given below.
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Use of Polymers and Its Classification Chemistry Coursework
9 pages (2513 words) , Download 0 , Coursework
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In the year 1827, a scientist by the name of Jons Jakob Berzelius coined the word polymer which he derived from the Greek words polys meaning many, and meros meaning parts. Humans have taken advantage of polymers for centuries in the form of oils, tars, resins, and gums. It was not until the industrial revolution that the modern polymer industry started to develop.
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Small Flame Experiment Chemistry Article
5 pages (1376 words) , Download 0 , Article
Free
A fire burning in an open space will entrain air from all sides which creates an imbalance in the airflow. The imbalance restricts air entrainment and the pyrolyzing produces travel high up in the plume before complete combustion and heat release. This phenomenon is called as trench effect and is known to occur on fires adjacent to inclined surfaces.
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Transition Metals Chemistry Essay
8 pages (1863 words) , Download 0 , Essay
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A forensic odontologist is an appropriate person that carries out the role of forensic odontology in a criminal investigation. Table 1 shows the specific roles of a forensic odontologist in crime investigation as outlined by the British Association of Forensic Odontology which is carried out usually in close coordination with the forensic pathologists and forensic anthropologists.
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Health and Safety in the Manufacture of Propylene Chemistry Term Paper
6 pages (1644 words) , Download 0 , Term Paper
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The storing of propylene is also a factor in reducing the risks associated with propylene. Propylene has to be stored away from any oxidizing agent to prevent the possibility of violent reactions. The storage containers of propylene should be closed tightly and the storage area should be cool and well ventilated.
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Post Translational Modification and Glutathionylation Chemistry Thesis
17 pages (5650 words) , Download 0 , Thesis
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The proper understanding of the pathways involved in the process of glutathionylation not only helps us to understand the reasons and causes of the disease but will also prove to be a trigger to find the cure for the diseases thereby decreasing the sufferings of many patients who are in a dire need for such treatments.
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Analysis of Materials: Corrosion and its Associated Effects Chemistry Term Paper
8 pages (2459 words) , Download 0 , Term Paper
Free
Corrosion is a serious problem but there is no definite technology that could counter the effects of corrosion. Existing technology only slows down the rate of corrosion in metals by sheathing the surface of the metal with a protective coating that enhances the hardness of the material as well as its resistance to oxidation. 
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Stress Corrosion Cracking Chemistry Coursework
7 pages (2161 words) , Download 0 , Coursework
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When metals were discovered during the Bronze Age, so much of human society has changed and so much has been achieved. The development and progress brought about by the discovery and the utilization of metals, however, is seriously impeded by the elements that tend to destabilize its strength and hence, usability – rusts or corrosions (Bertolotti & Hurst, 1978).
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Corrosion Mechanisms and Processes Chemistry Term Paper
7 pages (2177 words) , Download 0 , Term Paper
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During the early times where indirect methods of controlling corrosion are yet to be discovered, mankind has struggled to overcome the limitations of their most astounding discovery, the metals, knowing that all the efforts they have done to extract and process these metals from their ores will be in vain if the rate of corrosion is not reduced.
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Mans Quest for Energy Leads to Environmental Destruction Chemistry Essay
7 pages (2010 words) , Download 0 , Essay
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Energy can be defined as the ability to cause change or do work or the aptitude of a physical structure to execute work. There are diverse forms of energy which include potential energy, kinetic energy, chemical energy, thermal energy, nuclear energy, and electric energy. Energy is lost when it is transferred from one form to another and this is termed as a necessary evil.
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Spectroelectrochemical Studies of Fluorine and Dibenzothiophene S Chemistry Assignment
33 pages (10449 words) , Assignment
Nobody downloaded yet
The reaction of hydroxymethyl-EDOT with bromodecane gave the decyloxy substituted EDOT 6 in a 95% yield. Lithiation of 6 with n-butyl lithium and reaction with chloro tributyltin gave the stannyl derivative 5 as a mixture of two regio-isomers (yield 95%). Bromination of dihexylthienopyrazine with NBS gave the Bromo compound 3 in 60% yields.
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The Importance of Proteins to Living Organisms Chemistry Essay
6 pages (1886 words) , Download 0 , Essay
Free
There are four structures namely quaternary, tertiary, and secondary, and the primary structures. Some of the roles that are played by the proteins in the body of the organism include transportation, growth and development, Signaling cascades, cell signaling or ligand binding, cellular functions, hormonal functions, and also catalytic functions.   
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Introduction to Physics and Chemistry of Combustion: Explosion, Flame, Detonation Chemistry Assignment
6 pages (1658 words) , Download 0 , Assignment
Free
The paper "Introduction to Physics and Chemistry of Combustion: Explosion, Flame, Detonation" is a wonderful example of an assignment on chemistry. A thermal explosion is the rapid or sudden inflammation of uniformly heated materials. In order for a thermal explosion to occur, two conditions must be met.
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Fluid Dynamics of Fires Chemistry Term Paper
7 pages (2008 words) , Download 0 , Term Paper
Free
In fact, an airplane flying at supersonic speeds produces a double boom because two shock waves are formed, one from the nose of the plane and one from the tail. People near the path of a space shuttle as it glides towards its landing point often report hearing what sounds like two very closely spaced cracks of thunder. 
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Composition Corrosion Cells Chemistry Research Paper
13 pages (3450 words) , Download 0 , Research Paper
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PH refers potential of Hydrogen, i.e. the negative logarithm of the hydrogen ions concentration. In the acidic range, oxygen reacts with the atomic hydrogen thus depolarizing the metal surface, and subsequently, the reduction reaction progresses. At a PH level of 4, ferrous oxide dissolves as it is progressively formed rather than being deposited as a film on the surface.
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Metals in Medicine & Biology Chemistry Coursework
10 pages (2742 words) , Download 0 , Coursework
Free
There is no contamination to the final product by Magnus' salt during the conversion reaction, explain how step3 of this reaction proceeds and what drives it to completion. There is the formation of insoluble silver halogenides and aquaderivative (with aqualigand) after adding excess (10%) of silver nitrate AgNO3 then heated. 
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Valuable Learning through Mobile and the Use of Computer in Teaching Chemistry Essay
5 pages (1515 words) , Download 1 , Essay
Free
There are different tools available that can support teaching and learning in chemistry. The tools include smartphones, computers, tablets, mobile phones and others. Smartphones and tablets help in the participation of members in class discussion boards, which enable the exchange of ideas in chemistry wikis and journals.
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An Introduction to Combustion Chemistry Assignment
9 pages (2365 words) , Download 0 , Assignment
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. The molecules move at a faster speed than solid molecules and are less tightly packed. Gases have random and move in the vessel at a very high speed compared to liquids and solids. Molecules are independent of each other with no bonds between them. One state can change to another by the effect of heat (Cracolice 2011).
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Impact of Polymers on Society Chemistry Essay
10 pages (2701 words) , Download 0 , Essay
Free
The innovative process has been witnessed in many parts of the world and more especially in the developed world. Research has shown that the production of polymers-related products has increased across the world and this has been attributed to the multiplication of the applications of polymers in society. The demand for plastic has continued to increase the world over.
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Glycolysis and Fermentation of Grape Juice Chemistry Assignment
4 pages (1280 words) , Download 0 , Assignment
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Further, to establish the amount of glucose present in grapes in order to harvest it for glycolysis and fermentation so as to process the wine. This is achieved by estimating the levels as well as the content of sugar in the grape juice. The agenda behind all this is to establish the generation of energy by foods in form of ATP that drives all the processes.
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Determination of Elements by ICP-AES and ICP-MS Chemistry Assignment
4 pages (1245 words) , Download 0 , Assignment
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The effect of the working conditions of the dynamic reaction cell was investigated to obtain the most suitable S/N ratio. The interference potential of the elements normally at masses m/z 64, 56, and 40, plus their intensities were lowered through the application of a CHA4, acting as a catalyst in the reaction cell gas in the experiment.
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Causes, Consequences and Prevention of Industrial Accidents Chemistry Term Paper
7 pages (1942 words) , Download 0 , Term Paper
Free
An alternative approach is based on the main values that entail public participation, environmental justice, and pollution prevention. Environmental goals ought to include other community and social needs such as access to health care, jobs, and safe and quality schools, without which the community’s right to a safe future can be compromised
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Using Nature to Preserve Omega Oils Chemistry Assignment
8 pages (2362 words) , Download 0 , Assignment
Free
Antioxidants act as the catalysts that enable the conversion of omega 6 oils to omega 3 oils which are vital in the prevention of degenerative diseases. Omega Oils such as Krill Oil and Olive oils contain antioxidants. Some antioxidants are produced by the body while others are obtained from nutrients. Examples of those produced by the body are; lipoic acid and Co-enzyme Q-10.
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Quantitative Determination of Paracetamol in Tablets Chemistry Assignment
6 pages (1684 words) , Download 1 , Assignment
Free
Five 100 ml volumetric flasks were labelled and into each one of them was pipetted 0.4 ml, 0.6mL, 0.8mL, 1.0mL & 1.2mL respectively of stock standard solution. Each of these was made up to the mark using 0.1M NaOH. The resulting solutions were 4µg/mL, 6µg/mL, 8µg/mL, 10µg/mL and 12µg/mL paracetamol working standard solutions.
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Chemistry - Alkenes and Aromatics Chemistry Coursework
3 pages (847 words) , Coursework
Nobody downloaded yet
Symmetrical stretch is infrared inactive, for a nonlinear molecule, the number of normal modes of vibration will be calculated according to the number of dipole moments and components. The number of modes = 3 normal modes, of these 2 will be symmetrical stretching vibrations. The rule of mutual exclusion indicates that each structure will produce its own spectrum at a time. 
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Organic Chemistry Chemistry Lab Report
7 pages (2014 words) , Download 2 , Lab Report
Free
The three types of water assessed for purity in terms of their chemical compositions included Tap Water, Dasani® bottled and Fiji® bottled water. It was observed that bottled water contained more impurities than tap water, and that water treatment reduced the number of impurities in the water. It was concluded that tap water was a safe and cheap source of drinking water.
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Cigarette Smoke Chemistry Article
2 pages (630 words) , Download 2 , Article
Free
Smoking can cause lung disease by damaging your airways and the small air sacs (alveoli) found in your lungs. Lung diseases caused by smoking include COPD, which includes emphysema and chronic bronchitis. Cigarette smoking causes most cases of lung cancer.
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Solubilization of Hydrophobic Drugs Chemistry Essay
6 pages (1650 words) , Download 0 , Essay
Free
Solubilization of hydrophobic drugs is a commonly encountered problem in screening analysis of new drugs together with the preparation as well as its development. There are a number of ways to counter this challenge in order to improve the solubilization of the hydrophobic drugs to improve their bioavailability. 
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Welding Operation and Evaluating the Effectiveness of Fume Extraction Guns Chemistry Case Study
8 pages (2274 words) , Download 2 , Case Study
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There are a number of welding tools and forms and TIG and MIG welding tops the list in a significant manner. TIG stands for Tungsten Inert Gas signifying the tungsten electrode and inert gas surrounding it. TIG can be used to weld copper and titanium metals and can also be used to weld steel and aluminum. MIG welding has also gained significant acceptance.
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Energy Use in BBE Ethanol Production Processes Chemistry Assignment
8 pages (2110 words) , Download 2 , Assignment
Free
Two sets of utility shut-downs have been recorded; duration of 57 days of the in-active period. These are the 27 days of nil supply of the raw material and the 30 days shut down of the utility due to maintenance and emergency. The Initial steam requirement for process water after this is at a rate of 48 MT of steam per day.  
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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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Inhibitory Effects of Fruit Juices on Cytochrome Chemistry Research Paper
7 pages (1893 words) , Download 2 , Research Paper
Free
Since the last 25 years, the study of food-drug interaction still goes on since the discovery that grapefruit juice inhibits cytochrome P450 (CYP3A4). Cytochrome P450 presents highly in the wall of the small intestine and in the liver. It oxidase substances in phase I metabolism. It was needed to be used in vitro experiment to examine this food-drug interaction, Procrine Esterase enzyme was used.
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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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Structure of Steel and Modifications in its Behavior due to Heating, Alloying and Hardening Chemistry Book Report/Review
6 pages (1500 words) , Download 2 , Book Report/Review
Free
Quenching is a process of heating high carbon steel on normalizing temperature and then cooled in brine, water or oil. The process will result in a martensitic structure that is a form of steel, possessing super-saturated carbon in a deformed Body Centered Cubic (BCC) crystalline structure, named as Body-Centered Tetragonal
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Nanomaterials and their Applications in Solar Cells Chemistry Term Paper
6 pages (1500 words) , Download 2 , Term Paper
Free
Nowadays the silicon crystalline modules are replaced by the thin film solar cells such as CDs, CdTe, CIGS, amorphous Si, microcrystalline Si for improved efficiency. Other improvements such as concentrator modules, silver cells, continuous printing process, casting wafers instead of sawing are used 
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Ammonia Synthesis Chemistry Research Paper
6 pages (1500 words) , Download 2 , Research Paper
Free
The author states that the major use of ammonia is in the field of agriculture, where it is the major source of nitrogen, an element needed in large amounts by plants. Before the chemical process for synthesizing ammonia was discovered, the sources of nitrogen-rich fertilizers were organic wastes like bird droppings, human urine.
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Hydrogen Bonding and the Importance to Life Chemistry Term Paper
6 pages (1500 words) , Download 2 , Term Paper
Free
This research will begin with the statement that hydrogen bonding refers to the interaction between pairs of an atom with an innate high affinity to the electron. This is a natural process of attraction distinct and is particular to intermolecular communion which is a consequence of duo partial electric charges within the continuum of opposite polarity.
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Titanium and its Uses Chemistry Research Paper
6 pages (1500 words) , Download 2 , Research Paper
Free
One area where titanium has been found to be of utmost importance is in the medical industry. Medical implants with titanium or titanium alloys incorporated in them have been developed and made use of in the past few decades. This paper will examine the use of titanium in medical implants and its properties.
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The Influence of the Nature of a Liquid on its Rate of Evaporation Chemistry Research Paper
6 pages (1500 words) , Download 2 , Research Paper
Free
According to the findings, it can, therefore, be said that the rate of evaporation of a liquid depends on many factors. Nature of a liquid may be one of the most important factors which determine its rate of evaporation. The rate of evaporation also depends on the surface area and the temperature of the liquid.
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Differences between Fire & Combustion Chemistry Essay
1 pages (250 words) , Download 1 , Essay
Free
Fire and combustion are typically the same scientifically, but there exist some conventional differences between them. Combustion usually takes place before the emergence of fire. Conventionally, fire is not usually the intended outcome of a combustion process, while combustion is a controlled fire. Fire is an uncontrolled combustion process.
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Effects of Reducing Sugars, Starch, Lipids and Proteins Chemistry Lab Report
1 pages (464 words) , Download 2 , Lab Report
Free
The present paper has identified that when reducing sugars are mixed with Benedict's reagent, the color changes from clear blue to a red-orange, green or yellow, depending on the sugar.  The glucose solution turned dark orange or red, and the onion solution turned light yellow or orange meaning there must be glucose present. 
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Cocaine in Money Chemistry Lab Report
1 pages (250 words) , Download 0 , Lab Report
Free
This experiment is used to test the presence of cocaine in dollar bills. The experiment tests whether money has been contaminated with the drug. Logically this would be possible if one handled money and the drug, or the money came into direct contact with the drug in a way, or another. However, there are so many other possibilities and legalities that make the assumption complicated.
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Thermoplastic Polyester Elastomer Chemistry Assignment
1 pages (250 words) , Download 0 , Assignment
Free
Sub-optimal developments occur when there is an excessive association between organic silicates and TPE-E segments (1, 3-6). The dual-modified organic silicates establish immediate functionality which is interested in the polymerization reaction to raise the degree of clay dispersion and to boost the thermal stability of the consequential polymer nanocomposites (8, 10).
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Flexure Testing of Fibre-Reinforced Plastic Composites Chemistry Literature review
12 pages (3000 words) , Download 2 , Literature review
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The author of the paper states that the polymer is primarily categorized into thermoplastics and thermosetting. Thus, thermoplastic materials are rampant as matrices for the bio fibers. Moreover, thermoplastics are utilized as the matrix in polypropylene, polyethylene, and corresponding polyvinyl chloride.
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Safety Regulations for Plants Storing Lethal Compressed Gas Chemistry Research Paper
8 pages (2000 words) , Download 2 , Research Paper
Free
The standards require that the operator determine the safety of the compressed gas cylinders under their control in relation to the mechanical integrity by visual inspection. If visual inspection is not enough it is best to keep a constant check on the mechanical integrity of the material used to contain the hazardous compressed gases.
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Water Treatment Plants and Disinfecting Water: Uses of Chlorine Chemistry Research Paper
8 pages (2000 words) , Download 3 , Research Paper
Free
Chlorine is a greenish-yellowish gas that is 2.5 times heavier than air. In its gaseous form is extremely toxic and dangerous. Kerri succinctly presents the dangers of chlorine gas: It has a very high coefficient of expansion. If there is a temperature increase of 50 degrees, the volume will increase from 84-89 percent.
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The Role of Government in Ordering a Convicted Rapist Chemistry Research Paper
13 pages (3250 words) , Download 2 , Research Paper
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Chemical castration is a particularly controversial example of incapacitation of sex offenders with hormonal drugs that supposedly reduce or eliminate the sex drive. No permanent physical alteration is required to conduct this procedure, which involves the use of a birth control drug that quells the sex drive of male sex offenders. 
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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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Flow Instability in an Alumina Precipitator Fitted With a Draft Tube Circulator Chemistry Case Study
4 pages (1000 words) , Download 1 , Case Study
Free
The draft tube slots are necessary for achieving a good pumping capability at the tank bottom. I can say in totality that CFD has played a big role in cutting down the operational cost. I can recommend more research to make sure maximum optimization of the process so that industries can maximize yields.
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