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Chemistry Essay Examples

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 ... Tags: Chemistry
Pages: 5 (1250 words), Assignment
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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 ... Tags: Chemistry, Depression
Pages: 4 (1000 words), Essay
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Physical chemistry
(Atkins & de Paula, 2006)A catalyst accelerates a chemical reaction without undergoing a net chemical change. The catalyst reduces the energy of activation by altering the path of reaction to avoid the rate determining step, which is the slowest step in a reaction (Atkins & de Paula, 2006). For example, decomposition of hydrogen peroxide, which is ... Tags: Chemistry, Equilibrium
Pages: 8 (2000 words), Essay
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Introduction to Organic Chemistry
Organic chemistry is a specific branch of chemistry, basing off of the study of the element carbon, and its relations to life and the world around it. Sometimes called “life” chemistry because of living things presence of carbon, organic chemistry includes reactions, formulas, and processes, are all based on carbon chains and its unique ... Tags: Chemistry
Pages: 4 (1000 words), Essay
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Personal Statement (Chemistry Major)
I was always amazed how the human mind was able to construct the synthesis of such complicated compounds. I use my knowledge of drugs in my current job as a caregiver, where one of my tasks is handling medication intake of my patient.I apply chemistry to not only to my job, but also to life in general. Chemistry is hence a pillar in my life and career. ... Tags: Chemistry, Personal Statement
Pages: 4 (1000 words), Essay
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Teaching Reflection Essay - Chemistry
Having this in mind, teachers ensured that the necessary material and apparatus necessary to be used in a particular lesson are identified in the lesson plan in an attempt to accomplish the objectives described. These materials are highly useful in facilitating the learning process. Thus, as observed, a lesson plan increases the efficiency of teaching ... Tags: Chemistry, Teaching
Pages: 6 (1500 words), Essay
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Supramolecular chemistry
The tiny size of the hydrogen atom creates a high affinity for the other electrons thus the combinations tend to aligned in certain direction.Coordinate bonding is another form of chemical interaction that involves the bonding between ionic form of metals and atoms that are concentrated with electrons. The force involved in this process is relatively ... Tags: Chemistry
Pages: 4 (1000 words), Thesis
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Physical Chemistry
The law of multiple proportions that posits that when 2 chemical elements combine to produce more than one likely compound then the proportion of the second element’s mass that joined with a specific mass of the first element will be represented as proportions of whole numbers (Niaz, 2001). The results of this laid the foundation for Dalton’s Atomic ... Tags: Chemistry, Philosophy of Science
Pages: 4 (1000 words), Essay
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Physical Chemistry Lab Report
This lab report covers on the employment of gravimetric analysis in the mass determination of chlorine within an unknown chloride solution. In determining the mass percent of chlorine, a pure precipitate containing chloride ions must be prepared. Among the elements that form insoluble chlorides include Pb2+, Hg22+ and Ag+ (Smith and Stanton, 114). This ... Tags: Chemistry, Crucible, Lab Report
Pages: 5 (1250 words), Lab Report
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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 ... Tags: Chemistry
Pages: 4 (1000 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 ... Tags: Chemistry, Compare and Contrast Sample
Pages: 8 (2000 words), Assignment
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Chemistry paper
And inert gases. The reaction with oxygen is an exothermic process and therefore self sustaining; however, to initiate the reaction some initial heating is required to dissociate the double bond in O2.This compound is liquid at room temperature. Its freezing point is 0 oC and boiling point is 100 oC. This is found in abundance on the planet Earth, mostly ... Tags: Chemistry
Pages: 6 (1500 words), Essay
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Write a poem about chemistry or write about the philosophy of chemistry
This impact arose from his assertion that chemistry is not a suitable science. Brakel demonstrates how this statement had an uneven effect on how philosophers. As a result, researchers during Kant’s era were inclined to see the comparative status of the association of physics to chemistry. Kant’s early statements contributed to the negligence of chemistry ... Tags: Chemistry, Geology Topics, Philosophy of Science, Physics
Pages: 7 (1750 words), Essay
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Chemistry exam
Some of the sources of proteins include: meat, poultry, seafood, beans, peas, eggs, processed soy products, nuts which are usually derived from plants or animals. Notably, they are described according to their functions in the human body e. actin is used for structural component by providing support and structure to the cells which allows the body ... Tags: Chemistry, Catcher in the Rye, Digestive System, Protein Synthesis, Tears
Pages: 4 (1000 words), Essay
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Physical Chemistry Lab Report
To counteract this precipitation performed slowly in an acidic environment. The acid solution mixture is not affected by anions of weak acids that might also form precipitates with the silver ions. Precaution must be taken to avoid a large excess of silver ions since it can lead to unwanted precipitates. Interfering ions might precipitate with excess ... Tags: Chemistry, Crucible, Crucible Mccarthyism, Lab Report
Pages: 7 (1750 words), Lab Report
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The chemistry of food
In addition, it can be used in the calculation of other constituents e. Total solids are the weight (dry weight) that remains after moisture analysis (Nielsen 2010, Pg 25). Lipids are compounds that are sparingly soluble in water but have variable solubility in organic solvents such as ethyl ether, petroleum ether, acetone, ethanol, methanol, and benzene ... Tags: Chemistry, Cat on a Hot Tin Roof, Crucible, Crucible Abigail Williams, Crucible Mccarthyism
Pages: 6 (1500 words), Coursework
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Pharmaceutical Chemistry
Larger energy, means larger frequency, means shorter wavelength (red shift or shorter wavelength).At alkaline pH, the absorbing system may be intact and will show red shift, but in acidic solution the amino - H2N group is replaced by - +NH3, which is considerably less efficient as an auxochrome. Thus in acidic solutions, a hypo chromic effect occurs ... Tags: Chemistry, Partition
Pages: 30 (7500 words), Essay
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Physical Chemistry Lab Report
Finally, the experiment employed Anodic Stripping Voltammetry in determination of copper. Anodic Stripping Voltammetry relies on the electric conductivity of analytes, and is specifically suited for quantitative analysis of minute traces of heavy metalsii. Subsequent sections of this lab report contain procedural steps, results and discussions pertaining ... Tags: Chemistry, Crucible, Crucible Abigail Williams, Crucible Mccarthyism, Lab Report
Pages: 7 (1750 words), Lab Report
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The Nobel Prize in Chemistry 1947
While at Oxford, he explored sex hormones and steroids. During World War II, he studied the properties of penicillin antibiotic, elucidated its structure, and also researched antimalarial drugs. His explorations also extended to explosives and petroleum. He was the president of the Royal Society and Commandeur de la Légion d’Honneur (“Sir Robert Robinson”, ... Tags: Chemistry, Penicillin, Sir Lancelot, Steroids
Pages: 4 (1000 words), Essay
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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 ... Tags: Chemistry
Pages: 6 (1500 words), Assignment
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Physical Chemistry Lab Report
When in contact the fluorophore returns to the ground state, without emitting photons. For a static and dynamic quenching to occur the fluorophore and the quencher must be in contact. Requirement of molecular contact for quenching may result in the numerous applications of quenching.The mechanisms of quenching include: foster resonance energy transfer, ... Tags: Chemistry, Lab Report
Pages: 7 (1750 words), Lab Report
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Chemistry of Swimming Pool Disinfection
Scenario, those in charge of maintaining the pool regularly subject it to chemical treatment in order to make sure that it remains safe and fit for public consumption.In the words of the Division for Environmental Health (2011), the only way to maintain safe and consistent swimming pool operation is through proper water chemistry. The exact process ... Tags: Chemistry
Pages: 5 (1250 words), Term Paper
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Chemical KInetics Chemistry
Raising or lowering the pressure of a reaction system involving liquids or solids leads to no change in the rate of the reaction.For a specific amount of gas, to raise the pressure of the gas one would have to compress the gas so that it would be contained in a lesser volume. Doing so would mean the same amount of gas is found in a much smaller volume, ... Tags: Chemistry
Pages: 6 (1500 words), Assignment
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Chemical KInetics Chemistry
Doing so would mean the same amount of gas is found in a much smaller volume, resulting in a higher concentration. Because of the increased concentration, there are more molecules of the gas that collide, thus the higher the pressure the higher the chances of the successful molecular collisions occurring. The successful collisions lead to bonds being ... Tags: Chemistry
Pages: 6 (1500 words), Assignment
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PHYSICAL CHEMISTRY COURSEWORK
Ozone is generated by the energetic action of solar ultraviolet radiation (UV) on Ordinary Oxygen in the presence of stabilizing agent like Nitrogen. The reaction is reversible and O3 reverts to diatomic oxygen. It’s a strong oxidizing agent readily reacting with other chemical compounds to make toxic oxides, it’s also responsible in providing the strong ... Tags: Chemistry, Carbon Monoxide
Pages: 4 (1000 words), Coursework
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Chemistry in Life
Most historians are generally agreed that coins were invented at around 700 B. (before current era) independently in Lydia (now a part of modern-day Turkey), in India, and in China. Barter is a form of direct exchange by which goods and services were exchanged for another set of goods and services without the benefit of using a medium of exchange (currency). ... Tags: Chemistry
Pages: 14 (3500 words), Research Paper
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Chemistry central journal
Models per ORN, selected those with the highest predictive power, and used them to predict ORN responses to 21 compounds, which were subsequently tested in vivo (in the following referred to as "test data"). We also assayed ten compounds that had already been tested in the previous study.The MATLAB Neural Network Toolbox was used for ANN modeling, ... Tags: Chemistry, Cannery Row
Pages: 5 (1250 words), Essay
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Analytical Chemistry
Iron (II) with 1,10-phenanthroline (C12H8N2, ortho-phenanthroline or o-Phenanthroline), a tricyclic nitrogen heterocyclic compound that reacts with ferrous iron to form the strongly colored complex thus:This complex absorbs light in the visible region rather strongly with a maximum absorbance occurring around 508 nm and is very stable, the color intensity ... Tags: Chemistry, Agent Orange, Analytical
Pages: 4 (1000 words), Lab Report
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Does a pharmacist need to know medicinal chemistry
There are individuals specialised in different fields, which results in more organisational and individual productivity and innovativeness. How would it be necessary for a pharmacist to seek pharmaceutical chemistry knowledge when there are qualified researchers in that field with pharmacists being expected to be experts in their own field? Since the ... Tags: Chemistry
Pages: 4 (1000 words), Essay
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Infra Red Spectroscopy in Chemistry
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 ... Tags: Chemistry, Little Red Riding Hood, Red Convertible, Red Pony, The Red Badge of Courage
Pages: 13 (3250 words), Essay
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Chemistry-hydroxylapatite
It is usually written Ca10(PO4)6(OH)2 to show that the crystal unit cell comprises two entities. Hydroxyapatite is the hydroxyl end member of the complex apatite group, in which the OH- ion can be replaced by fluoride, chloride or carbonate. This substance crystallizes in the hexagonal crystal system. (Deer, 1985) It has a specific gravity of 3.08 and ... Tags: Chemistry, Cochlear Implants, Thomas L Friedman
Pages: 4 (1000 words), Essay
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Physical Chemistry Lab Report
Subsequent sections of this report contain steps used in quantitative determination of Mn in steel.The first method in quantitative determination of Mn in steel was volumetric analysis. In this method, unknown samples of steel were titrated with KMnO4 followed by back titration of the sample with ferrous ammonium sulfate. First, a standard KMnO4 was ... Tags: Chemistry, Lab Report
Pages: 5 (1250 words), Lab Report
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Lab Chemistry Paper
When more than one elimination product can be formed, the more substituted alkene becomes the major product, which is obtained by removing a proton from the adjacent carbon that has fewer hydrogens (Schlosser, pp153-189). The more substituted alkene is the major product because it is the more stable alkene; therefore, it has the more stable transition ... Tags: Chemistry
Pages: 6 (1500 words), Essay
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Method in physical chemistry ( Material)
Reversible redox reactions occur within the polymer central chain in a similar manner as that of quinine or polyaniline polymers. Consequently, chemical reactions involve the use of building units of the polymer, strong oxidizing agent and a strong inorganic acid. In the case of polyaniline, start by placing appropriate quantity of 0.1M aniline in the ... Tags: Chemistry
Pages: 5 (1250 words), Assignment
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Chemistry and society Class
Corporation (SABIC), based at Riyadh, Kingdom of Saudi Arabia, is probably one of largest companies in the world, manufacturing Specialized Chemicals, Polymers and Metals and other commodities. All their products improve the standard and comfort of customers throughout the world, who happily use their products.Let us see how the company came into existence. ... Tags: Chemistry
Pages: 4 (1000 words), Essay
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Organic Chemistry: Separation and Purification Scheme
In this case, benzoin remained dissolved in 1,4-Dibromobenzene because it does not dissolve in sodium hydroxide,. After the separation of organic and aqueous layers, the benzoic acid was recovered from the aqueous solution by addition of hydrochloric. Both compounds were then purified by crystallization, dried then their weights were measured and recorded ... Tags: Chemistry
Pages: 6 (1500 words), Lab Report
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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. The two processes require a specific catalyst. In the reaction of a polymerization, ... Tags: Chemistry
Pages: 8 (2000 words), Essay
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Physical Chemistry - Phase Diagrams
As defined by the conditions of temperature and pressure lying in this region. A liquid is a nearly incompressible fluid that conforms to the shape of its container but retains a (nearly) constant volume independent of pressure. The volume is definite if the temperature and pressure are constant. The inter-molecular forces of attraction are relatively ... Tags: Chemistry, Equilibrium
Pages: 4 (1000 words), Coursework
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The Chemistry in Desalination Plants
The pressure is applied on the higher concentration solution. The outwardly applied pressure builds up and is greater than the concentration difference hence the net solvent movement is from high concentration area to low concentration area. Finally as the solute cannot pass through as the membrane because is it not permeable to it, the solute and the ... Tags: Chemistry
Pages: 3 (750 words), Research Paper
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Physical Chemistry Lab Report
Theoretically, standardization of NaOH and determination of a primary standard’s purity are quantitative methods. Therefore, accuracy of instrument readings is paramount in ensuring success of a volumetric analysis. In this case, the experiment began with the cleaning and calibration of instruments, primarily the burette, mass scales and Erlenmeyer ... Tags: Chemistry, Lab Report
Pages: 5 (1250 words), Lab Report
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Justification of the Chemistry lesson plan and concept map
Ridley (2004) came out with the assertion that in order to overcome the differences in expectations existing between them, the teacher and students must have a minimum level of sensitivity and understanding towards each other. This is stated to be of particular importance in the beginning of an academic programme or while teaching a new concept. Therefore, ... Tags: Chemistry, Bambara the Lesson
Pages: 6 (1500 words), Essay
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Written Report for Professor in Chem Department (new gas-phase ion chemistry and mass spectrometric )
Through instrumentation, Xia and group develop mass spectrometry systems for executing bimolecular reactions in both a linear trap and plume sections of nano-electrospray source. These ranges of apparatus enable research transition from the radical attack study of biomolecules to the analytical study (Chem. In terms of bio-radical chemistry, radical ... Tags: Chemistry
Pages: 4 (1000 words), Essay
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Chemical, Electrical ,Mechanical and Chemistry
Most of the Li-Polymer cells must be charged carefully up to 4.2 V and they must be recharged once the voltage drops to 3. The batteries come with a variety of electrode configurations. Some of the batteries use Li metal strip as the cathode whereas as others use carbon-Li intercalation compound in which Li+ ions form a coating over a carbon cathode ... Tags: Chemistry
Pages: 8 (2000 words), Essay
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Chemistry - mechanism and synthesis
Thus, it is treated with aqueous acid and the excess Grignard reagent is destroyed and the salt is now converted to the imine – pentane-2-imine. The imine is unstable in the aqueous acidic conditions and readily hydrolyses to the ketone (Taylor, p.This is the least stable radical as the relevant carbocation is flanked on either sides by other carbocations ... Tags: Chemistry, Synthesis
Pages: 9 (2250 words), Essay
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The Chemistry of an industrial process and its environmental impact
Once the alkene has been obtained, polymerization is carried out to form different products. Polymerization mainly results into long-chain molecules called polymers. Polyethene, for example, is formed through additional polymerization of ethene. The action is as shown below and takes place at 200oC and 2000 p.Plastic pollution in the ocean has raised ... Tags: Chemistry, Ocean Pollution
Pages: 4 (1000 words), Essay
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Chemistry and biology lesson plans and concept maps
After the lecture and experiments, the students will be able to have first-hand information about the nature of substances around us like fruits, vegetables, liquids, other eatables, chemical substances etc. Process of water filtering, which allows water to pass through but stops the larger molecules of dust particles. This fact can be better understood ... Tags: Chemistry, Bambara the Lesson, Process Examples
Pages: 12 (3000 words), Essay
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Water quality method for chemistry lab
While conducting the experiment, safety procedures were fundamental; since the water was hazardous, protective clothing such as globes was important (W. The test kit contains all materials required to perform the experiment, for example, reagents for testing chlorine content in water (Sturman & Kuruvilla 77).There are other materials such as test ... Tags: Chemistry, Color of Water, Drinking Water
Pages: 4 (1000 words), Lab Report
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Analytical chemistry assignment 12 questions
Care should be observed to avoid inhalation of the fumes during the collection and analysis process.Urine collection methods vary depending on the analyte being tested. Drugs differ in the way in which they are metabolized in the body, including the components that are excreted through the urine. Depending on the analyte being investigated, urine samples ... Tags: Chemistry, Analytical
Pages: 5 (1250 words), Essay
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Chemistry of common preservatives
The use of oils and resins to quicken or slow down the decaying process were used to best effect by the Egyptian Civilization.Nowadays, food preservation has dramatically reduced, Combination of preservatives may reduce overall concentration of a preservative and natural preservative system could replace the classical ones to minimize the adverse effects.It ... Tags: Chemistry, Agent Orange, Mummification
Pages: 30 (7500 words), Research Paper
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Enhancing High School Students Attitude towards Science: Green Chemistry in Curriculum: Does it enhance high school students attitude towards science
At the same time, it was largely ignored by common people and industries that random utilization of science for hedonist and utilitarian purposes would largely affect the environmental balance (Goodman, and Chant, 1999). The progress of human civilization, especially in the post Industrial Revolution era, witnessed a dynamic shift of the human race ... Tags: Chemistry
Pages: 60 (15000 words), Thesis
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