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Chemistry Essay

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For example, Ethanol content is the single most important parameter in alcoholic beverage industries. ‘For many economic and regulatory reasons, convenient, accurate, and fast quantitative determination of ethanol in mixtures is important. With the increased importance of quality assurance in industries, Near-IR spectroscopy has become an important quantitative tool for solvent characterization’ (Liquid Phase Quantitative Analyses Using Axsun’s Targeted-Range Near-Infrared Spectrometers,
Pages: 13 (3250 words), Essay
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Hydrogen Energy
The world today is heavily dependent on regular supply of fossil fuels from a few nations - this endangers geopolitical and price stability. On the other hand, dependence on hydrogen and fuel cells involves easy and trouble-free access to a large variety of fossil fuels, nuclear energy and renewable energy sources {like wind and solar energy} as and when they become largely obtainable.
Pages: 6 (1500 words), Essay
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The Food Product is Philadelphia Snacks Breadsticks
The primary ingredient in this product is cheese, specifically soft cream cheese. Cheese is produced through the fermentation of milk using lactic-acid forming bacteria such as Lactobacilli or Streptococci. The bacteria added to the milk digest the milk which, in turn, produces lactic acid. The lactic acid produced coagulates casein to form curds.
Pages: 3 (750 words), Essay
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Aluminum
There are many chemical reactions in which aluminum can be used as a catalyst due to its reactive nature. Moreover aluminum has found its applications in various chemical industries.Aluminum is classified as a metal which is very lightweight. The ductility of aluminum lies midway between irons and copper. It can be easily molded into different shapes. The physical appearance of aluminum is very pleasant, varying from shiny gray or silver to dull gray. This why well polished and sometimes
Pages: 8 (2000 words), Essay
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Therapeutic polysacchraides
Flowers with wide spreading and crinkled petal structures, of a monoecious variety possessing both male and female structures within a single plant. The fruit produced may vary in shape, but are broadly oblong or crookneck with a penduncle angle and wide apex. The oldest record of domestication of these plants is shown in excavated seed found in Mexico from about 5000 B.C as well as in Peru from 3000 B., demonstrating that the plant has been cultivated for a large period of human history
Pages: 8 (2000 words), Essay
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Psychologist Accused of Fraud on 'Astonishing Scale'
Of fraud in research include sanctions such as preventing future publication of material from the offending authors in case of journals, disciplining authors and notifying outside funding sources so that they can stop funding the authors and Pressing of criminal charges against those who commit the fraud. To the extreme cases, they can be banned from practicing their profession.If undetected, there will be wrong documentation of research data and research reports. Undetected fraud can lead to
Pages: 2 (500 words), Essay
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DRUG PROFILEB ( DIAZEPAM ) pharmacology
The phenytoin concentration should be monitored in case of toxicity and the phenytoin dose should be adjusted as necessary (Australian Medicine Handbook 2011).Enhanced sedation or respiratory and cardiovascular depression may occur if diazepam or other benzodiazepines are combined with drugs that have CNS-depressant properties such as alcohol, antidepressants, sedative antihistamines, antipsychotics, general anaesthetics, other hypnotics or sedatives and opioid analgesics. The metabolism of
Pages: 17 (4250 words), Essay
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Hydrogen as alternative energy
Hydrogen sources are methane and some bacteria and algae.According to an approximation, each 9/10 atoms in this universe are hydrogen. Hydrogen was discovered by a British fellow, Henry Cavendish in 1766, where he also proved hydrogen to be an integral part of water.The necessary element for fuel cells is hydrogen. Due its abundance and combinations with nearly every compound, hydrogen can be extracted from any of such compounds and has the ability to provide as a source of green energy. The
Pages: 4 (1000 words), Essay
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Chemical Properties between a Mixture and a Compound
Substances held together by ionic bonds are called ionic compounds. An ionic bond is formed when ions of opposite charges (positive and negative charges) attract, such as when an atom of sodium encounters an atom of chlorine. When these two atoms meet, one electron of sodium is transferred to chlorine, creating charged species in the process.
Pages: 4 (1000 words), Essay
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The chemical element of Fe2+
The actual weight of ceric (IV) ammonium nitrate undergoes division by the molecular weight of the final volume of the solution to come up with a Ce4+ concentration that is expected. Equation (1) and the table (1) numeric values are essential in a calculation of the Ce4+solution, expected to be 0.100M in concentration.
Pages: 4 (1000 words), Essay
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Chemistry of Depression
What Does Serotonin Do? The following figure shows the serotonin pathways through brain.The primary function of serotonin is to transmit nerve impulses across nerve cells and neurons. It should be noted that neurons is responsible for raw data from different parts of body organs to the brain. Again, after processing the information brain gives instructions to body organs through the same neuron. In short, neuron activity is important in keeping all bodily activities intact. When variations
Pages: 4 (1000 words), Essay
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Make solar energy economical
Due to use of silicon material the cost of electricity production is three times higher which makes the engineering pauses need for cost effective cells with low manufacturing costs (Simon, 2007).The current standard cells provide thirty one percent efficiency due to use of silicon materials. Use of new materials for production by multilayer cells can increase the efficiency. There are also other ways of enhancing efficiency of solar energy which include the development of nanotechnology.
Pages: 4 (1000 words), Essay
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Writer choice
Microcrystalline testing involves combining a given amount of isolated sample with a specifically known chemical reagent. In the presence of a drug or poison, a chemical reaction will occur producing a precipitate. The precipitate structure and color varies in respect to the drug or poison that is tested. The precipitate that is formed can then be screened or viewed under a microscope for identity confirmation (Bell, 2009). This test is more accurate than color testing due to the more analysis
Pages: 3 (750 words), Essay
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The Experiment of B-Galactosidase Enzyme Activities
The absorbance was then read at550 & 620nm as a measure of cell growth using culture medium as once blank. The average values were tabulated in the table. The samples were chilled for about 2-3minutes and centrifuged at 3,500 rpm for ten minutes. They poured off and discarded the supernatant into the water bottle provided.
Pages: 6 (1500 words), Essay
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Phosphoric Acid Fuel Cell
This high heat can be turned into a useful source of energy for air conditioners and other thermal energy consuming systems (Onovwiona and Ugursal 389). This property makes the phosphoric acid fuel cell more useful and improves its efficiency to about 80%. The anode electrode in this cell uses a platinum catalyst. 
Pages: 4 (1000 words), Essay
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Fuel Cells
These are voltage loss indicators. The various types of fuel cells mentioned earlier are discusses independently below.The fuel cell is designed such that a proton-conducting polymer membrane separates the anode and the cathode. On the anode electrode, hydrogen diffuses to the anode catalyst, and it later dissociates into protons and electrons. The protons will react with oxygen molecules at the cathode side, infusing via the polymer electrolyte membrane as well as the electrons coming through
Pages: 4 (1000 words), Essay
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Fuel Cells and Proton Exchange Membrane
This brings the overall efficiency of the fuel cell vehicle to 64%. This value, however, goes down when the fuel source is not pure hydrogen. The U.S. Department of Energy thus decided to concentrate on pure hydrogen fuel cell vehicles. Fuel cell vehicles, therefore, are expected to supersede their rival technologies in terms of fuel efficiency.
Pages: 5 (1250 words), Essay
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Energy Generation and conservation in Fuel Cell
In addition, the fact that they can be renewed by reuse of the products makes them quite environmental friendly. As a result, the energy of the ecosystem remains balanced as no waste exits from the cycle. Therefore, it has turned out as the most drastic move in maintaining the environment by ensuring that the energy in it is conserved. The general conclusion is that the fuel cell has changed the human life by ensuring that the rate of environmental pollution is minimal.In addition, the fuel
Pages: 4 (1000 words), Essay
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Chemistry and Society
 The crude oil first undergoes a fractional distillation process. One of the fractions called naphtha is the important element for the production of plastic. The two main processes that are used for the production of plastic are polycondensation and polymerization.
Pages: 8 (2000 words), Essay
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Spectroscopy Calibration with use of Helium
Spectroscope produces and records spectra used for evaluation. Why calibrate a spectroscope? As an important tool in sciences, calibrating the spectroscope helps in eliminating the systematic error. It occurs through comparing experimentally obtained wavelengths established from the use of Bohr’s equation model.
Pages: 5 (1250 words), Essay
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