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Chemistry Essays

Result for Subject Chemistry:
1169 essays
The Chemistry of Adderrall Chemistry Research Paper
5 pages (1250 words) , Download 2 , Research Paper
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Adderall is a drug which is just like any other drug that has benefits and side effects. The question of whether to take Adderall or not usually lies in whether the benefits outweigh the risks. Adderall is a Schedule II drug as declared by the FDA. Therefore, only further research will be able to determine its fate as a pharmaceutical product 
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Clonidine and Quinapril Chemistry Report
5 pages (1760 words) , Download 1 , Report
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The shelf life of the oral Clonidine Hydrochloride tablets and the Clonidine HCL solution for IM & IV injections can be taken to be determinant on the means and method of storage. According to Aurobindo Pharma Ltd., the manufacturer of Quinapril Hydrochlorothiazide 20/25 mg film-coated tablets, the shelf life of their product is three years. 
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Synthetic Studies Towards Cylindrospermopsin Chemistry Lab Report
5 pages (1861 words) , Download 1 , Lab Report
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Cylindrospermopsinin (C YN) is gradually being recognized as of the most global importance of the freshwater algal toxins. The rapid increase in CYN producers in temperate zones is yielding concern on the impact of this toxin to human, as well as environmental risk and health risks across the contents. 
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Elements, Compounds and Mixtures Chemistry Research Paper
5 pages (1250 words) , Download 1 , Research Paper
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The author explains that the two substances, water, and sodium chloride are pure substances, and in a mixture, they are not chemically combined and hence can be isolated using physical processes, such as evaporation. However, water (H2O) is a compound consisting of a chemical combination of two elements, namely hydrogen and oxygen.
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Validation Exercise in the Measurement of Iron Chemistry Lab Report
5 pages (1480 words) , Download 1 , Lab Report
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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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Electrospinning Nanofibers Using M-Poss and Polycaprolactone Chemistry Report
5 pages (1537 words) , Download 1 , Report
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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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Physical Properties of Materials Chemistry Research Paper
5 pages (1398 words) , Download 1 , Research Paper
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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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Total Synthesis of Any Natural Product Chemistry Report
5 pages (1399 words) , Download 2 , Report
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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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Colorimetric Determination of Salicylate in Urine Chemistry Lab Report
5 pages (1259 words) , Download 4 , Lab Report
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Salicylate is a chemical compound that naturally occurs in most plants. They are mainly used by the plants to protect them against diseases and insects (PATERSON, et al., Strathclyde). Salicylates have varying effects on human beings depending on the quantity one has ingested. There are various foods that produce salicylate.
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The Nuclear Changes Characteristics of Papillary Carcinoma Chemistry Case Study
5 pages (1632 words) , Download 1 , Case Study
Free
Studies indicate that this rise is due to increase papillary carcinoma, the most prevalent thyroid malignancy in areas with insufficient iodine. Incidence rates annually vary by geographic area, age, and sex. A normal fully differentiated thyroid follicular cell is transformed into a rapidly growing undifferentiated anaplastic thyroid carcinoma.
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The Operational Events of Nuclear Power Processing Chemistry Case Study
5 pages (1459 words) , Download 1 , Case Study
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The consequences of these events are potentially significant. Communicating within the nuclear processing industry involves several groups of audiences. Evaluation of the consequences of the operational events of nuclear power processing these effects to the affected parties is in most cases challenging for the technical communicators.
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From Cocoa Bean to Chocolate Bar Chemistry Literature review
5 pages (1514 words) , Download 1 , Literature review
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Chocolate can be used as an ingredient in many other food products such as candy bars, milkshakes, cereals, cakes, biscuits, and cookies. This is what makes it important to know exactly how chocolate bars can be made from cocoa beans. Someone might assume that the process of producing chocolate bars from cocoa beans is a simple one. 
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The Nanocomposites Derived from the ME100-ODTMA Chemistry Essay
5 pages (1426 words) , Download 1 , Essay
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The different response was attributed to the presence of quaternary ammonium modification despite the full elastic response of the inorganic filler at the levels of stress.this difference in response is due to an increase in the amount of non-crystalline hard segments in the amorphous phase or an increase in the mobility of the soft phase. 36
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Food Chemistry Chemistry Term Paper
5 pages (1743 words) , Download 2 , Term Paper
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Breakfast has been labeled as the most important meal of the day. It allows the person to kick start his day. A healthy breakfast is known to be beneficial for the overall health and well being of a person. Scientific studies have shown that consuming a healthy breakfast correlated positively with weight, nutritional adequacy and academic performance. 
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The Formula of Magnesium Oxide by Gravimetric Analysis Chemistry Lab Report
5 pages (1355 words) , Download 1 , Lab Report
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About 10 cm of magnesium ribbon was used instead of just 1cm or 20 cm to ensure that the magnesium would react adequately with the air. In addition, it was important not to use 1cm because it would have less weight and would introduce more errors to the experiment. Conversely, 20 cm of magnesium would require quite a long time to be oxidized completely.
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The Concept of Work Hardening of Metals Chemistry Lab Report
5 pages (1345 words) , Download 2 , Lab Report
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Metals deform at room temperature and are usually accompanied by layers of atoms sliding over one another within the crystal grains of the metal. In the first part of the experiment, the concept of cold working was demonstrated. Experiment two examined how annealing times and annealing temperature affected the hardness of copper. 
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Gravimetric Analysis Chemistry Lab Report
5 pages (1508 words) , Download 1 , Lab Report
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While some compounds dissolve in water due to molecular properties, others are insoluble. Solubility can be thus be used when isolating particular ions. By implementing a reaction that goes to completion, Cl- ions react with other ions forming an insoluble substance. The formed substance will then precipitate out. 
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Renewable Energy - Technologies, Policies and Market Chemistry Report
5 pages (1369 words) , Download 1 , Report
Free
The steady increase in industrialization and human population raises the demand for energy and other material needs. Human beings depend so much on energy for their daily activities such as transport, industrial activities, medical purposes and domestic use. There is a need for more sustainable energy sources so that all these human activities can succeed.
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Proton Exchange Membrane Cell Chemistry Book Report/Review
5 pages (1250 words) , Download 1 , Book Report/Review
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The author states that a notable aspect here is that PEMFCs operate on a principle parallel to that of PEM electrolysis, a more recent technology application. Of critical importance in the current century is that the two technologies are a principal option in the replacement of the now-aging alkaline fuel cell technology.
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Intermolecular Attraction Forces Chemistry Essay
5 pages (1428 words) , Download 1 , Essay
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In general, the intermolecular forces are a force of attraction that keeps molecules together. The forces determine the physical properties of particles. The ionic forces are the strongest then followed by hydrogen bonding. The dipole-dipole forces are the third in terms of strength while the London dispersion is the weakest.
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Acids and Bases Chemistry Essay
5 pages (1456 words) , Download 1 , Essay
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The strength of acids and bases depends on the strength and polarity of the chemical bond in the acidic hydrogen bond. Water molecule ionizes to produce OH- and H3O+ ions whose concentration relates to the dissociation constant of water Kw. The acidity or basicity of a solution is determined by the concentration of hydronium ions.
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Proton Exchange Membrane Fuel Cells Chemistry Essay
5 pages (1250 words) , Download 1 , Essay
Free
This paper will shed light on what is needed for this type of fuel cell to work, how they are made, advantages and disadvantages of this type of fuel cell, and developments in this field. Moreover, it will focus on the applications of PEMFCs in the automotive industry.
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Volatile Organic Compounds in School Chemistry Essay
6 pages (1708 words) , Download 1 , Essay
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An aspect of the studies is the noted deficiencies in air ventilation and air volume in current classrooms, an aspect borne out by the architectural decisions made when building the schools, and which have come to represent a threat to the long-term health and the academic outcomes of school children.
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Determination of Food Additives in a Beverage Chemistry Essay
6 pages (1723 words) , Download 1 , Essay
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Generally, the wavelength for all 4 food additives was concluded to be 263.72nm. The separation power between the additives was 2.316, 3.174, and 3.726. A determined efficiency for the additives was found to be Saccharine - 2893.0055, Tartrazine - 3308.5504, Vanillin - 5910.5344, and Caffeine - 393.7536.
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Radioisotopes as Tracers in Physical, Chemical, and Biological Systems Chemistry Assignment
6 pages (1799 words) , Download 3 , Assignment
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This is a branch of Chemistry that deals with changes that occur in the nucleus of an atom. Protons and neutrons are called Nucleons, and their total number is known as the mass number or Nucleon number. A particular nucleus, with a specific atomic number and mass number, is commonly known as a Nuclide.
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Effect of Enzyme Concentration, Temperature and pH on Enzymes Chemistry Lab Report
6 pages (1590 words) , Download 1 , Lab Report
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The specificity of an enzyme is determined by characteristics of the R-groups of the amino acid residues that form the active site of an enzyme. Enzymes are important in the maintenance of normal bodily functions and absence or deficiency may lead to metabolic disorders such as Krabbe disease or Phenylketonuria (PKU).
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Effects of Immobilized Enzymes on Industrial Bioprocesses Chemistry Research Paper
9 pages (2269 words) , Download 1 , Research Paper
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The firms that need the enzyme applications offer significant considerations to the enzyme size because such elements assist in the determination of the effectiveness of separating them from the desired commodity. Huge particles have a large surface area to volume ratio, and the rate of reaction was slow. There is a prime between the reaction rate and separation.
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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 Different Factors That Affect the Rigidity of Starch Gels Chemistry Research Proposal
10 pages (2603 words) , Download 1 , Research Proposal
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The disparity in the characteristics of both amylopectin and amylase can be explained by the impact of gelation. Gelation in hot water is a remarkable characteristic of starch. Starch absorbs about 30% of its own weight of water. As the temperature increases to about 55 ℃, most of the starch starts losing its native structure which allows it to imbibe more water as it tenderizes and then swells.
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Water-Soluble Chemistry Article
6 pages (1656 words) , Download 1 , Article
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Papers for magazines cannot be like tissue paper or it will have a greater spread of ink. Even the cost production of the paper is contingent on which one you buy; however both the soluble and those not soluble in water have substitutes of the chemicals used in creating them, which provide cost efficiency and the same results. 
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Protein Purification Protocol of the Glycogen Phosphorylase Chemistry Term Paper
8 pages (2382 words) , Download 0 , Term Paper
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Glycogen is a large highly branched polymer of glucose molecules. Most are joined by alpha 1, 4 to make straight chains, and alpha 1, 6 linkages occur every 8 to 12 glucose residues, to make branch points. There are two types of linkage found between the glucose molecules. However, excess Glycogen phosphorylase is usually made of a cofactor pyridoxal phosphate strongly bound to it.
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Application of Chemical Instruments to a Bomb Site Chemistry Case Study
12 pages (3366 words) , Download 0 , Case Study
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Two explosions racked at London between 2:00 pm and 2:30 pm. Of these explosions, one happened at the Scout Bar and the other at Eat Out restaurant. Given the fact that it was the weekend and the time during which the explosions happened coincided with the fact that it was peak hour for Saturday revelers.
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Demonstrating the Flashpoints of Various Chemicals Chemistry Assignment
6 pages (1679 words) , Download 0 , Assignment
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A flashpoint is identified by putting little quantity of the sample to be tested into the testing cup apparatus. Cooling or heating is done till the expected temperature, i.e. the lowest temperature level whereby there is the release of ignitable vapor. A flame is introduced to the sample thus bringing about a little flash over the liquid. 
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Biomass and Biofuels Energy Processes Chemistry Report
6 pages (1835 words) , Download 0 , Report
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Biofuel energy will be responsible for creating many high-quality jobs and increasing the economy. Countries should act now to try to get part of these investments. In addition, many jobs would be created with the new biofuel energy farms. There will be a need to create more than two million jobs for the wind power industry in the world by 2030.
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Fermentation Conditions for the Production of Ethanol Chemistry Assignment
6 pages (2713 words) , Download 1 , Assignment
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The whole life of the person involved in binge drinking is left in a mess and they are a big chance that young alcohol abusers will abuse other types of drugs Many strategies have been employed that are geared towards changing personal attitudes of people about drinking. Mostly, these strategies entail carrying out awareness campaigns.
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Proton Exchange Membrane Materials for Fuel Cells Chemistry Annotated Bibliography
13 pages (3431 words) , Download 1 , Annotated Bibliography
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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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The Density of Gas Chemistry Assignment
18 pages (4208 words) , Download 1 , Assignment
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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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Aspirin Production Process Chemistry Report
9 pages (2567 words) , Download 2 , Report
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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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Synthesis of Diazepam Chemistry Report
9 pages (2447 words) , Download 1 , Report
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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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Penicillin Production Process Chemistry Report
9 pages (2615 words) , Download 1 , Report
Free
Penicillin is the first antibiotic to be used in healthcare to treat bacterial infections. In 1945, the greatest contributors for the invention and isolation of penicillin, Alexander Fleming, Sir Howard Florey, and Ernst B. Chain, were awarded the greatest Nobel Prize for the invention and isolation of penicillin. The antibiotic has been proven to possess vital therapeutic potential.
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Factors Affecting Enzyme Rate of Reaction Chemistry Assignment
7 pages (1842 words) , Download 1 , Assignment
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This assignment also discusses types, structure and function of carbohydrates, lipids and protein, the key molecules of life. Carbohydrates are one of the major classes of biomolecules. Most of the earth’s organic matter is comprised of carbohydrates since they play an extensive role in the life of all organisms. 
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The Bacillus Amyloliquefaciens Subsp Plantarum Strain d747 Chemistry Report
9 pages (2543 words) , Download 1 , Report
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Bacillus amyloliquefaciens subsp. plantarum strain D747 has no known risk factors for the majority of animals. This nearly makes the substance harmless; hence, there is no compelling need for its management. However, in plants, the substance has several effects on the parts; thus a need to manage it.
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Hazard Assessment of Arabian Incense and Cigarette Smoke Chemistry Research Paper
9 pages (2501 words) , Download 1 , Research Paper
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The experiment was conducted in a mid-sized apartment and incense from the United Arab Emirates was burned in a closed apartment in order to reciprocate the conditions that are found in the Arab countries. The control group was cigarette smoke and a local cigarette was burned and placed in similar conditions for the purposes of comparing the results.
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The Chemistry of Falafel Chemistry Lab Report
10 pages (2728 words) , Download 1 , Lab Report
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Falafel is a versatile food in terms of composition and presentation. With the ever-increasing interest to meet dietary requirements, knowledge of the composition of foods is essential and product labels are an informative tool. At a glance, the consumer is made aware of their intake. It is also rich in dietary proteins. 
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Doping in Sport Chemistry Coursework
8 pages (2244 words) , Download 1 , Coursework
Free
Doping has been a serious issue in the sporting world for centuries now. Although initially doping was allowed in the sport, it was banned later on because it gives athletes who use performance-enhancing drugs undue advantage over opponents. Although athletes have for a long time depended on drugs such as steroids and growth hormones.
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Pros and Cons of Global Warming Chemistry Essay
6 pages (1500 words) , Download 2 , Essay
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Global warming is good because it can increase the heights of some mountains, particularly the ones covered with thick layers of ice. However, as the ice melts due to global warming, the pressure exerted on the layers reduces, potentially increasing the rate at which the height of a mountain changes 
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History of Periodic Table Chemistry Term Paper
6 pages (1636 words) , Download 1 , Term Paper
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Periodic table refers to a table that illustrates a periodic system that has chemical elements arranged in order of atomic numbers. However, the prerequisite to the establishment of the periodic table was the initial discovery of the individual different elements. Chemistry has always made attempts to arrange these elements in a manner that reflects similarities in their properties. 
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Ugi Reaction Chemistry Literature review
6 pages (2196 words) , Download 1 , Literature review
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The Ugi reaction subject has gained an unprecedented prominence in the recent chemical literature. An explosion of interest toward the Ugi reaction is explained by the rapid development of chemical technologies and the need to solve organic chemistry challenges in a cost-efficient manner. The history of the Ugi reaction dates back to the middle of the 20th century. 
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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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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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