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Chemistry Assignment

The People Around Their Chemical Facility: the Health Security and Toxic-Free Environment
It may have been good news for the community of Clifton, New Jersey, that Abrachem moved away to another site, however, there is a presupposition that they will continue the same kind of business operation under another group name.  In this instance, the U.S. government should step in before allowing this group to continue operating as a chemical facility. 
Pages: 7 (1750 words), Assignment
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The questions of Chemistry for Life Sciences
This variation in melting point depends largely on the atomic structure of the elements. Silicon has a very high melting point because it has a giant covalent structure. Each silicon atom forms covalent bonds with four other silicon atoms, giving a tetrahedral, giant lattice structure. All these atoms are held together by strong covalent bonds and it is difficult to overcome the attractive forces. Thus, silicon has a very high melting point. Sulphur and chlorine are non metals and they have
Pages: 6 (1500 words), Assignment
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Organic Chemistry
This reduction will yield an E-alkene. Using Lindlars catalyst, Z-alkene can be produce. An imine reacts with dienes in the Aza Diels-Alder reaction to produce tetrahydropyridine. In Hoesch reaction , a type of Friedel-Crafts Acylation reaction, imine is reacted with a nitrile, hydrochloric acid and an arene to form an aryl ketone. In direct addition of TMS-acetylene to Aldimines, the absence of polar solvent is desirable to prevent any attack to nitrogen and Propargyl group that can
Pages: 5 (1250 words), Assignment
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CV personal statement with 2 page to answer
It is my belief that the potential of Biochemistry being enjoyed by the students can only be realized if the teacher will be able to tap its strengths and blunt its weaknesses. I should be able to formulate enjoyable and exciting experiments by using reactions that produce color changes. If the students do not perform the experiments well the first time, I should be patient in guiding my students to the eventual achievement of desired result. If my students see in me these characteristics, I
Pages: 4 (1000 words), Assignment
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Explain the structure of enzymes and discuss their role in metabolic reactions
The amylases produced in the pancreas enable conversion of polysaccharides into disaccharide maltose. The amylase produced in the pancreas is found in its active form. This is primarily because the secretory cells are not endangered when the amylases are in their active forms. Polysaccharides are not contained in these cells (Sherwood, 2008, p. The amylases may be of the salivary, the gastric, and the pancreatic. Salivary amylase is produced by salivary glands. Starch are the main targets of
Pages: 6 (1500 words), Assignment
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The urinary system
Imperative to note is that specific gradient is directly proportional to osmolality which examines the concentration of solute. This measurement is carried out using a refractometer in a majority of clinical laboratories (Tortora & Derrickson 2010).Dipstick urine analysis also measures protein presence in urine samples. This can be achieved through whole urine sample or via semi-quantitative tests for the presence of urine proteins. This is normally performed after the centrifugation of
Pages: 4 (1000 words), Assignment
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Discuss the microbial production of non Beta lactam antibiotics
Actinomycetes are numerous and widely distributed in soil, compost etc and are next tobacteria in abundance. Plate count estimates gives value ranging from 10^4 to 10^8 per gram of soil. They are sensitive to acidity or low pH (optimum pH range is within 6.5 to 8.0) and waterlogged soil conditions. As we go deep into the soil, the population of actinomycetesincreases. They are aerobic (requires oxygen), heterotrophic (cannot make its own food) and mesophilic (25-30ºC) organisms and some
Pages: 14 (3500 words), Assignment
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The industrial production of aluminium and Recycling aluminium
After the digestion process, the insoluble part of the bauxite, called red mud, and fine solids are removed before precipitating the aluminum trihydrate crystals. Then, the crystals are calcined in fluidized bed calciners or rotary kilns to produce alumina (Al2O3). In the production of primary aluminum, electrolytic reduction of alumina is being done. The alumina is broken into aluminum and oxygen by dissolving it in a molten bath of fluoride compounds. An electric current is passed through the
Pages: 5 (1250 words), Assignment
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ChemistryWritten Assignments
(12) A 44.0 g sample of unknown metal at 99.0˚C was placed in a constant-pressure calorimeter, with a heat capacity of 12.4 J/˚C, containing 80.0 g of water at 24. The final temperature of the system was found to be 28. Calculate the specific heat of the metal.(13) A person ate 0.50 pound of cheese (an energy intake of 4000 kJ). Suppose that none of the energy was stored in his body. What mass (in grams) of water would he need to perspire in order to maintain his original temperature? (It
Pages: 11 (2750 words), Assignment
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Fine chemical engineering
For example, the corrosive nature of salicylic acid makes it unsuitable for human use because it causes gastric pain, attacks the mucous membrane of the mouth and causes a worse discomfort that was it is meant to cure (Leo, 2005, p.However, the derivative of Salicylic acid commonly known as aspirin or acetylsalicylic acid is relatively harmless and is currently manufactured both industrially and in the laboratory through a process known as esterification. Generally, esterification normally
Pages: 10 (2500 words), Assignment
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Fine chemical production
The mixture is then allowed to cool. As much as possible acetic acid is removed using the rotary evaporator. The residue is a tan oily substance that is then treated by the use of ether, 30 ml of ether is used. After the mixture is momentarily swirled, crystallization occurs and a colorless crystalline material was collecting after it had been kept overnight and by using 4.60 grams of ether at a melting point of between 176.5 and 178 °C the colorless crystalline material is washed. The two
Pages: 10 (2500 words), Assignment
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Fine chemical assignment
Protection of individuals with a weak immune system due to conditions or illness such as sickle cell anemia, and strengthen the immune systems of any sick individual that is receiving treatment and medical care and the disease can make him or her prone to infections.Most times penicillin is abbreviated as pen or PCN, and it is a member of antibiotics that is derived from penicillin V (oral use), benzathine penicillin, penicillium fungi, penicillin G, and benzathine penicillin (Sheehan & Logan,
Pages: 10 (2500 words), Assignment
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Hygiene and toxicology
The particulate enters the body in the same manner as cigarette smoke. However, unlike cigarette smoking, the inhalation of the DPM is not voluntary (Bull, 2007). The particulates can also enter some parts of the body directly. For instance, they can enter the eyes through wind.After entering the body, the particulates are usually distributed through the respiratory system that is divisible into two. The particulate are first distributed in by the upper airway passage. This part of the passage
Pages: 6 (1500 words), Assignment
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Analysis of a Scientific Report on a Chemical Hazard
Most Bacillus species are used in the treatment of intestinal infections, endometritis, post-partum pyoinflamattory complications in cows and festering wounds.The Bacillus amyloliquefaciens subsp. Plantarum strain D747 controls fungal plant pathogens by combining differernt modes of action. They first B. amyloliquefaciens D747 competes effectively for nutrients and space with the plants pathogens, particularly where the nutrients are scarce on the leafs surface. Bacillus amyloliquefaciens
Pages: 12 (3000 words), Assignment
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Food chemistry
Scientific studies conducted to see the effect of wholegrain oats on health have shown that diet containing these kinds of fibre-rich oats improves the BP and regulates glucose and lipid levels in the body (Pinn et al, 2002). Wholegrain oats is known to lower the blood glucose level and contribute substantially to a low- gyceamic load diet and is also potential probiotic (Connolly et al, 2012).Blackberry is a dark-purple colored and flavourful berry. The blackberry puree in this case adds to
Pages: 6 (1500 words), Assignment
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Describe your interest in chemistry
I also love organic chemistry because it explains most biological processes that sustain human life.Organic chemistry in practical sense gives me a fulfillment as I feel that the cognitive benefits are far much important that it’s practical value. I like organic chemistry because it helps me tap into nature and gives me a network of ideas on the environment around me. Organic chemistry, however, contains a wide range of principles that require practice and understanding (Hill & Holman, 112).
Pages: 4 (1000 words), Assignment
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Forensic Chemical Pathology Therapeutic Drug Monitoring Assessment
In patient A, the blood circulating concentration of FK506 concentration was stable as it did not trigger any eventful post-transplant course or nephrotoxicity. Clinical management was effective due to the suitable drug concentration. The measured low concentration in the blood would indicate poor compliance.
Pages: 4 (1000 words), Assignment
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INSTRUMENTAL ANALYSIS EXAM
For compounds having similar polarity to that of non-polar stationary phase there movement will be delayed because of their strong attraction to the particles. Intuitively, the differences in the relative attraction of each compound for each phase creates a basis for separation by changing the speeds of the analytes.Particle size (dp), is a representation of the mean diameter of the spherical supports used to pack a column. According to the definition, particle size poses a significant impact
Pages: 4 (1000 words), Assignment
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Radioisotopes as tracers in physical, chemical and biological systems
Uranium-238 undergoes alpha emission as shown below.Radioactive nuclides with a very high neutron-to-Proton ratio reach a more stable state through beta (β) emission. This involves the conversion of a neutron to an electron and a proton. The electron (e-) which is the beta particle is ejected from the atom while the proton remains in the nucleus. In nuclear equations, the beta particle is represented as, or β or β-. For instance, Iodine-131 is a beta emitter;Radioactive nuclides with a
Pages: 5 (1250 words), Assignment
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Organic chemistry
For a distinction your work will show that you can consistently draw structural formula, identify and name organic compounds with almost no mistakes that you can describe typical reactions of some of the functional groups, with explanations with no mistakes and complete answers consistently. You should be able to draw mechanisms or organic reactions consistently using the correct notation. You will be able to calculate formulas and interpret spectra giving more than a basic explanation of the
Pages: 8 (2000 words), Assignment
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