Chemical Term Papers Samples For Students

Introduction

There are environmental chemical processes which require light to react. These processes are called photochemical reactions. Photochemical reaction is commonly initiated due to the absorption of solar energy or light. When molecules absorb energy in the form of light, the atoms are converted in a transient excited state (Larson & Weber, 1994). This transition state or excited has completely different physical and chemical properties with the initial state of the molecule. The excited states also have more tendencies to react since they are considered stronger acids and stronger reductants that the initial state of the molecule. The excited state of ...

Introduction

Pesticides are substances or a mixture of substances whose main aim is to destroy, repel, prevent or inhibit the action of any pest. A pest is any form of an insect, plant pathogens, weeds, birds, mollusks, nematodes (worms), and microbes that destroy human foods while in the field, during transportation or in stores. In addition, a pest can destroy other human properties apart from food or help spread harmful diseases. Pesticides are classified into five categories: a chemical substance, a biological agent, disinfectant, antimicrobial and a device. Since pesticides find use in both our homes and in farms, they have the potential of causing ...

The periodic table of elements, by far, stands among the most notable discoveries in the history of chemistry. Nowadays, probably everyone who has ever heard about chemistry heard about the periodic table of elements. Its implications on the scientific world are so enormous that it has even leaked out to the general public and have become associated with the chemistry itself. This is not surprising considering the scientific strength of this instrument. Using the periodic table, many characteristic properties of the elements can be predicted and many phenomena can be explained. This discovery put so much scientific knowledge together, ...

Syrian Chemical Attack August

Introduction
Social Judgment Theory (SJT) is a persuasive theory that was proposed by Muzafer sheriff, Carolyn sheriff and Carl Hovland. Epistemologically this theory states that there exists a single universal interpretation (of one truth) on how people judge received messages. Ontologically, the SJT theory is deterministic since individual behavior is predictable (Connolly et al. 2000). Axiologically, SJT is value-neutral since the theoretical propositions remain objective and free from biasness. The theory of SJT explains how individuals judge the messages get. The theory also predicts that people accept or reject particular attitudes and messages (Connolly et al. 2000). Weekley and Ployhart ( ...

Formaldehyde

Chemical Concerns
According to the National Cancer Institute website, formaldehyde is a colorless, strong-smelling chemical compound used to manufacture building materials and other household products. Exposure of humans to formaldehyde levels exceeding 0.1 ppm may lead to short-term effects such as skin irritation, respiratory problems, nausea, wheezing, and inflammation of the mucus membrane. Formaldehyde is a probable carcinogen and long prolonged exposure to the chemical can lead to certain types of cancer.

Route to Exposure

In most cases, people expose themselves to formaldehyde when using volatile organic compounds such as paints, pesticides, and building materials. When using these products, they emit organic compounds. ...

Introduction

Stainless steel is an important component in the modern industry having various uses in the industry. This has forced new developments in its manufacturing especially in terms of its composition. This can be the steel made from aluminum, manganese, and iron. All these materials makes the finished stainless steel product unique in terms of its composition, physical metallurgy, and other factors. This paper is going to discuss the development in stainless steel technology with regards to its composition in terms of the materials used. The materials that are going to be discusses are Al, Mn, and Fe. The paper ...

Cancer is one of the most common causes of death worldwide. Every year, various types of cancer kill millions of people. The problem of cancer disease is unique because of its complexity and importance to humankind. Cancers affect all segments of the population, causing enormous damage to society. Although malignant tumors are extremely diverse and complex for the perception, the risk factors and mechanisms of development of cancer are well known enough so that it becomes possible not only to heal, but also to engage in cancer prevention. Cancer is the most difficult and dangerous disease, since it can ...

Hydrogen cyanide, abbreviated AC by military, is an inorganic compound that is colorless and is extremely poisonous liquid. It has a boiling point (26°C) that is slightly more than the room temperature. The molecule of hydrogen cyanide is linear and has a triple bond that joins the carbon atom and nitrogen atom together. Hydrogen cyanide has a weak acidic mature with a pKa of 9.2 and is partially ionizes in a solution of water giving cyanide anion. A hydrogen cyanide solution in water, is referred to as hydrocyanic acid while the hydrogen cyanide salts are referred to as cyanides. Hydrogen cyanide is mainly ...

Introduction:

Corrosion refers to the partial and gradual dissolution of materials used in water treatment and supply systems, pumps, pipes, tanks and valves. In most circumstances, almost all water is corrosive and this may lead to structural failure, water leaks, capacity losses and deterioration of the microbial and chemical water quality (WHO 2011). The pipes used in water distribution are made of different materials such as plastic, metals (galvanized steel, copper, lead and iron), and even concrete. Pipes made from concrete and plastic tend to be corrosion resistant.
In piping systems, however, there are several water quality factors working singly ...

Disposal of the hazardous waste has been a cause of concern from the time immemorial. Such poisonous toxic waste has a numerous disadvantages ranging from injuries and death to even permanent birth defects. This hazardous waste when dumped in an open area even used to contaminate the water, posing a threat to the aquatic life. To tackle this disastrous problem US military thus came out with the concept of disposal site.
A site which is generally used for accumulation of waste with the primary purpose of disposal or treatment of such waste is called a disposal site. Before the existence of such ...

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Introduction

Cosmetic products are commercial beauty products manufactured and marketed for the use of improving the appearance of an individual. They can be used to enhance the skin colour, the odour of a person, the lustre and hair. These products include makeup powders, hair creams and gels. Most commercial cosmetic products are synthetic. However, some are naturally sourced. They are meant to improve the appearance of a person without having any effect or interference to the normal basic bodily functions. However, rather than being beneficial to the users, cosmetic products have been found to have serious disadvantages to those who use ...

The movement from sites of waste-disposal of contaminated groundwater is a problem faced by many cities in world. Solid and liquid waste dumped in landfills generates an atmosphere where inorganic and organic compounds present in the water or which are produced in the landfill become prone of entering the hydrological regime through movement. The movement of contaminants in water bodies through landfills is more distinct in temperate and humid climates as penetration of rainfall is moderate to high, and separation of leachate from the aquifers which are underlying for extended time periods becomes a complex process. In such areas, landfills gets ...

Algae are a diverse group of organisms that are mainly autotrophs. Autotrophs are organisms that mainly produce complex organic compounds by using simple inorganic molecules and light or in other instances by chemical reactions. Algae can be broadly classified into two main groups which are unicellular or multicellular. Seaweeds form the largest and most complex marine type of algae (Olanrewaju, Wan Nik, & Kader, 2013). It should, however, be noted that algae can further be classified in many different ways. Below is an illustration of some of these classification representations.
Green algae are classified into the Plantae kingdom and are, ...

Causation of Climate Change

The world’s climate system is composed of five elements that include hydrosphere, lithosphere, atmosphere, cry sphere, and biosphere. It varies naturally with time and is dependent on the incoming and outgoing energy which determine the optimal balance of the earth’s energy. These determinants constitute factors that cause climate variation that result in either warmer or colder states. This result into a phenomenon referred to as climate change. This is a condition, in which, the earth experiences adjustments in its weather that occurs over a period. This essay provides a detailed analysis of the causes, characteristics, and the impacts of climate change ...

Introduction

The dramatic events of the so called “Arab Spring” are still unfolding in many parts of the Middle East. Syria is still experiencing this wave even though it is entering its fourth year of this uprising which has evolved to the point of a civil war. The Sunni-dominated civil uprising in Syria has taken dramatic shift as it has failed to bring down President Bashar al- Assad regime, unlike other Arab countries where the toppling of regimes took place swiftly. President Bashar al- Assad’s family has ruled Syria for forty years. Assad is from the minority group or sect ...

Abstract

Eveslogite, ((Ca,K,Na,Sr,Ba)48[(Ti,Nb,Fe,Mn)12(OH)12Si48O144](F,OH,Cl)14), is a mineral found on Mt. Eveslogchorr in khibiny Massif, Kola peninsula, Russia. It derives its name from this locality, in particular from Mt. Evesglochorr. This mineral occurs as an anchimonomineral veinlet that cross-cuts poikilitic nephiline synite (Hawthorne 2012). This mineral appears to resemble Yuksporite since it forms similar placated fine-fibrous of approximately 0.05 to 0.005mm that aggregates outwardly. The color of Eveslogite is yellow or rather light brown. In addition it is a semitransparent mineral that has a white streak and a vitreous luster. ...

Introduction

Stainless steel is an alloy with iron as major part and chromium with at least 11% by weight . Stainless steel industry grew rapidly during the 1989-93 period . This paper analyzes stress corrosion of stainless steel along with prevention measures and selection methods for stainless steel. After carrying out the study, it would be established whether stainless steel is an effective alloy or not for major uses in steel industry through adopting various selection parameters. Stainless steel is called stainless due to the resistance to rusting and corrosion .

Stress-corrosion in Stainless Steel

In order to reduce various occurrences of intergranular stress-corrosion cracking and severe ...

The world’s petroleum and oil supply are being depleted at a rapid rate, which has necessitated the need to utilize alternate sources of energy. In 2001, unconventional source of energy contributed to only 1% of the energy needs of the US (Martin, 2015). By 2035, 46% of the energy required by the US is estimated to be provided by alternate sources of energy (Adgate, Goldstein & McKenzie, 2014). Apart from being an alternate source of energy, unconventional energy source such as natural gas extracted from shale beds are one of the cleanest sources of energy (Martin, 2015). One of ...

Introduction of the OSH Act

OSH Act was proposed due to the accidents that were being experienced in the industries. The industry- specific safety statutes were still being enacted at the period. Most of these statutes protected employees under the federal agency contractors, and those that dealt with maintenance. The health and safety issues were also limited to a number of unions that represented workers that were in hazardous industries. The most common hazardous industries back then were electrical industries, mining, construction and auto. As the incidents of industrial accidents rose in the late 1960’s, there was a need to come up with a health and ...

Abstract

This report delineates the water quality and contamination of groundwater based on different water samples in three experiments. The water quality was monitored by adding laundry detergent, oil and vinegar in one experiment. The effectiveness of filtered water was evaluated in the second experiment by passing the contaminated water through filter layers containing sand, gravels and charcoal. The filtrate showed clear water compared to raw water. The third experiment was conducted to make a comparative analysis of water samples obtained from tap water with two types of bottled water samples. The samples obtained from Dasani and Fiji bottled showed good ...

The discovery of DNA as the genetic material was one of the landmark events in the field of biology. By confirming DNA as the genetic material scientists made a huge leap that has advanced the cause of medical science to a great degree. While discussing the discovery of DNA as the genetic material, we mostly speak of Friedrich Miescher (1871), the man who discovered DNA. After the discovery of DNA a significant number of studies were conducted that proved DNA as the genetic material. Then Griffith, (1928) conducted studies on bacterial transformation and indicated that genetic information can be transferred from one ...

This paper will focus on analysis of a gas fired rotary kiln in the processing of Bentonite. A rotary kiln is a drier that is used for increasing the temperatures of materials in a process called calcinations through a continuous progression. During the processing of minerals such as Bentonite and cement, this kiln is appropriate. Its thermal efficiency ranges from 50% to 65%. This kiln has a cylinder that is slightly incline horizontally and rotates gradually about its axis. Materials that are to be processed are fed into the kiln through the upper part of the cylinder. These materials slowly move to the lower ...

Marketing Petrochemicals

Abstract

Petrochemicals are a word used to mean all the chemical compounds or products that are obtained from petroleum and natural gas. Petroleum and natural gas are used in making petrochemicals since they are cheap and available. Their processing procedure to obtain the petrochemicals is also easy. Examples of primary petrochemicals are aromatics, methanol and olefins. From the primary petrochemicals, intermediate and derivative products can be obtained through chemical conversions.
The chemical conversion usually varies depending on the desired end product. Petrochemicals, just like any other manufactured or processed commodity has to be marketed well in order to make ...

Term Paper

1. Lesson 4 – a. Ingeo journey refer to a journey where our responsibilities towards environment is increasing and we are taking various measures and adopting various technologies to improve the situation. To some extent we are able to reduce adverse effect on environment but this journey will go on. The concept can be implemented on three “shelf in the bookcase”. Solar energy technology help in saving the electricity and also reduce the chemicals released while production of electricity. We can save a huge quantity of water that goes in production of electricity. The same concept work in case of renewal of ...

EXAM QUESTIONS ON BUSINESS AND SOCIETY

1. To what extent are companies justified in claiming that they are good corporate citizens?
The key goal of any business enterprise is to maximize profits and minimize cost. The management must safeguard the social welfare of the employees. In addition, the company must respect the social and cultural values as well as providing quality products and services to the consumers. Therefore, corporate citizenship is the understanding of all stakeholders in a company or business enterprise that it has social responsibilities to the employees, the surrounding society and the consumers, who indirectly influence the company’s performance in regional ...

Abstract

Recently, attention has been diverted to clean, alternative and renewable technologies due to the depletion of petroleum resources and increase of the green house gases from the combustion of fuel resources. Fuel cell is the fore-runner of these technologies and has received immense impetus due to its relatively clean source of energy. Fuel-cells are devices that produce electrical energy from chemical transformation reactions. Electrodes are placed within an electrolyte medium that facilitates oxidation of fuel. In these electrochemical reactions, ions are generated that generate electricity. This electrical energy can be effectively harnessed to carry out a myriad of functions. Since ...

There exists about 300,000 plant species on earth, and every individual plant hosts one or more endophytes. However, it is just a few of these plants that have been researched relative to their endophytic biology. Hence, the chance for isolation of new, as well as, interesting endophytic bacteria in plants are important. Endophytic bacteria can be referred to as bacteria that can be isolated from tissues of a surface-disinfected plant or bacteria extracted from inside of a plant, which cause no visible negative effects to the plant. Almost every plant is populated by varied bacteria referred to as endophytes. Majority of ...

Internet Encyclopedia of Garbage

- Term: Nitrogen Cycle Page of Coffel text:

Term: Nitrogen Cycle
Page Title: The Nitrogen Cycle: Processes, Players, and Human Impact
Organization Operating Server: Nature Education
Hyperlink: The Nitrogen Cycle: Processes, Players, and Human Impact
Brief Justification of Web Site as Appropriate: This page is from the Nature Education Knowledge Project. It explains the nitrogen cycle and illustrates how important it is for the survival of ecosystems which sustain plant and animal life. The implications of human interference with the nitrogen cycle are also explained.

Web Site No.: 2

Term: Nitrogen Cycle

Page Title: Water Treatment Solutions

Organization Operating Server: Lenntech
Hyperlink: Water ...

The brain of a human is directly connected to the organs of the body. In this way, all these parts tend to affect the way a person behaves. The genes play a vital role when it comes to human behavior. For example, some behaviors are species specific while others are often breed true. Behaviors can also change in response to alterations in biological structures or processes. Some behaviors run in families while others have an evolutionary history that persists across related species. There are certain parts of the human body that possess vital roles. The first vital part of the body is ...

Information technology is advancing extremely fast. The society is adapting to the changes, but the changes have not been understood by many in the societies. The forces of changes in information technology have not only impacted in the communication sector but all sectors of the economy. Information technology through the internet has resulted into a global village where geographical distance is no longer a limiting factor for two parties to do business. For those who are in the information technology sector, it is not easy to predict what will be the next state of information technology. The fact is that the ...

- Toxicology
With the help of an electron microscope, it becomes possible to carry out a detailed study of the toxic lesions in order to understand the toxicological events.
- Electron Tomography and Sub-cellular Structure
Electron tomography is a technique which is used to visualize and investigate the three-dimensional structural information about the sub-cellular macromolecular specimens. It is a three-dimensional electron microscopy technique used for sub-cellular imaging.

Principles of Function

- Electrostatic Interactions
In an electron microscope, electrostatic and electromagnetic lenses are used to selectively control and focus the electron beam to generate images. In atoms, with the increase in atomic ...

Thalidomide Scientific Component:

Molecular Mass: 258.23 Da
Color: white crystalline
Odor: Odorless
Taste: taste-less
Melting point: 271°C.
Insoluble in ether and benzene
Has a low solubility in water, methanol, ethanol and glacial acetic acid"
All bulleted sources from (Erkoc, 2004)

Structural Properties:

Thalidomide is composed of two rings with each of the rings having different chemical makeups (Franks, et al, 2004). The left-hand side ring is thought to be the ring responsible for the teratogenic effects seen (Franks, et al, 2004). The right-hand side ring has a structure very similar to hypnotic drugs and the sedative ...

Michael Faraday was born on 22 September 1791 in the southern part of London. Due to his disadvantaged background, he was not able to attend full education only achieving basic literacy (Faraday 1). At the age of 14, he apprenticed under a local bookbinder. For the next 7 years, he educated himself by reading books on a wide range of subjects mostly scientific (Hamilton 23; Scientific papers). In 1812, at the age of 20, Faraday received some tickets for a series of lectures conducted by the eminent scientist Humphrey Davy of the Royal University of Great Britain. He attended four lectures and ...

Abstract

Depression refers to a mental condition that is characterized by several symptoms that include but are not limited to: lethargy, isolation, prolonged periods of sadness, sudden emotional outburst such as crying for no particular reason, bouts of rage, self destructive tendencies such as cutting or biting, anxiety, paranoia, loss of appetite or unusual increase in appetite characterized by binge eating, insomnia and hostility. Recent estimates indicate that 1 out of every 10 individuals in the United States in termed as clinically depressed. The study also found that those likely to e depressed are: persons without any source of income, those ...