Essays on Chemistry

Challenges In Measurements Essay Examples

Part 1: Challenges of making direct measurements

Physical science is often viewed as the model of sound knowledge. Physical science represents a body of knowledge that has verifiable information. Physical science concept represents knowledge which has resulted after research and experiments on different scientific theories. During the development of such knowledge, measurements are made. Challenges in measurement are often related to the efficacy of the measuring tools being used. Challenges in measurement are as a result of lack of a direct method of measuring.
In astronomy, the scientists face a number of challenges such as measuring the distance between stars, the mass, and components making up

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3 Pages

Example Of Lloyd Augustus Hall Biography

Lloyd Augustus Hall

Lloyd Augustus Hall’s contribution to science largely involves food preservation. Lloyd’s interest in food chemistry, a new area of chemistry, started while working at Boher Chemical Laboratory. Before his inventions, table salt (sodium chloride) was used as the major food preservative especially in preserving meat (Wilson and Jane, 34). However, table salt was not effective enough, as meat could only be preserved in a short period using this technique. Following various experiments, Lloyd came up with “flash-drying” technique as an alternative to table salt preservation. The technique involved a combination of sodium nitrate crystals and nitrite and

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2 Pages

Free Biography On Marie Curie

There have been few people that have matched up to the scientific know how of the Curie family. The Curie family has received the most Nobel Prizes in history. Marie Curie, the matriarch of the family, was the first women to win a Nobel Prize and is the only person to win a Nobel Prize in two separate fields of science. Her accomplishments include describing the theory of “radioactivity” as well as coining the term; she also discovered to elements, polonium and radium. The theories of radioactivity helped during World War I where she assisted on the front lines

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1 Page

Nicolas Leblancs Baking Soda Biography Examples

Organization

Nicolas Leblanc, in 1791, gave the world a chemical compound which revolutionized food products, Sodium Bicarbonate. More commonly known as baking soda, this base has become an integral substance found in almost every household. Leblanc, a surgeon and private physician, was striving to make ends meet for his family when he heard about the prize offered by the French Academy of Science to anybody who can develop a process for producing soda ash from salt. The prize finally went to Leblanc, who had come up with the Leblanc process, which developed baking soda from seas salt and sulfuric acid.

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1 Page

Theories, Hypotheses, And Laws Research Paper Examples

In chemistry, a hypothesis is a means to help explain phenomena. It is an idea that might explain why something happens. In contrast a theory in chemistry refers to testing this hypothesis by trying to determine what is true about a phenomena.
A hypothesis is used to test why something happens. This is used to help develop the theory. The theory is based upon the truths discovered by testing the hypothesis. A law includes the entire collection of observations. Laws explain things but does not describe them differentiating them from a theory (Lastrucci, 1963) . The scientific process is a

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1 Page

Nobel Price, 2007 Research Paper Examples

Introduction

The founder of the Nobel price, Alfred Nobel was a distinguished scientist and investor. He owned a variety of firms that produced goods ranging from weapons to edibles. Thus chemistry was his field of study and specialization. When he died and introduced the Nobel peace prize, chemistry was the second prize area that he mentioned in his will. Thus the Nobel Prize in chemistry was founded. This prize is awarded annually by the Royal Swedish Academy of sciences in Sweden (Nobel Foundation, 2007).
The 2007 Nobel Prize was awarded to a Germany scholar and scientist Gerald Ertl for his

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1 Page

Evaluation Of Solution Order-Disorder Phenomena To Determine The Changes In Entropy Research Proposal Example

Funding is requested from the National Science Foundation in order to carry out proposed research based on the calorimetric study of enthalpy, Gibb’s energy, and entropy. The technique of calorimetric experimentation has changed a great deal from the early 1960s when studies of the heat ionization of water were conducted. The first adiabatic bomb calorimeters were very simple and controlling the difference in temperature between the inside and outside jackets was hard to control. The difference in temperature needs to be as small as possible, close to an infinitesimal amount. Technology has developed to sophisticated levels. The automatic

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6 Pages

Biography On Ghada Aldossary Auto

I am Ghada Aldossary, a 35 years-old Echocardiogram Technologist of Saudi Arabian descent. I am married with four kids. I graduated from Dammam College in 1999 with Chemistry major. I always thought that chemistry major would quickly get me a placement but after graduation it dawned on me that there were overly many graduates with chemistry major who yet to get employed. I did not find a good offer until I heard that one of our best Hospitals in Eastern province was seeking Electrocardiogram Technician. The hospital, Aramco Hospital as it is called, is located in Dhahran on the

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2 Pages

Literature Review On Supramolecular Chemistry

Lehn defines the concept of Supramolecular chemistry as ‘chemistry beyond the molecule’; chemistry of the intermolecular bond that includes the functions and structures of the entities resulting from the bonding between multiple chemical species. According to Vogtle and Alfter (1991), supramolecular chemistry, contrary to molecular chemistry, is based on intermolecular bonding or interactions, while the later is predominantly based on the covalent bonding of atoms. In other words, supramolecular chemistry deals with the bonding between two or more building blocks that are bound together by means of intermolecular bonds.
The aforesaid concept bears on the organized entities of higher

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5 Pages

Free Essay On The Nobel Prize In Chemistry 2012

The Nobel Prize in Chemistry for the year 2012 was awarded to two people that is Robert Lefkowitz and Brian Kobilka who demonstrated in detail that G-protein-coupled receptors enables the cells to be sensitive. The two clearly proofed before the panel how the receptors buildup, their functions, and how they can be regulated. Professor Sara Snogerup Linse a member Royal Swedish Academy of Sciences is the one who read the speech in Nobel Prize ceremony and she is a member of the Nobel committee for Chemistry.
The winners discovered that that the whole family of receptors that build up

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1 Page

Example Of Firstname Lastname Research Paper

Sustainable emerging materials: polymers and nanomaterials

In our time, we are used to satisfy our worldly needs and search for comfort by simply buying products at grocery stores, malls, or shopping centers. Nowadays we can access pretty much any type of product at affordable prices even if is coming from remote locations in the world. However, there is an extra price to pay: unprecedented amounts of non-renewable materials are depleted every single day. Most of these products are derived from petroleum, a non-renewable fossil fuel. To complicate things even further, the processing of petroleum is accompanied by the consumption of large amounts of energy and

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Environmental Justice

5 Pages

Case Study On Eharmony

External analysis of online matchmaking industry

Online matchmaking industry is one of the most controversial issues that most people do not seem to agree on. This may be due to the fact that like many applications that continue evolving with new ICT, it is very new especially to the old generation. This has opened a whole new idea of a third party in a relationship. Recently though, this activity has become acceptable even to the older generation since it has opened new opportunities of finding love. However, when people hear of matchmaking services, they tend to confuse the term with online medium-term relationship sites. Despite

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7 Pages

Argumentative Essay On Premidicine

Pre-medicine, famously known as pre-med, is an educational path that undergraduate students are required to undertake prior to pursue their dream medical careers. Pre-medicine as a career path, has rapidly grown in its popularity, thus becoming not only a prerequisite requirement in the United States, but almost in every country globally.
It entails all the necessary activities that prepare a student for a medical school. Such activities involve pre-medicine course work, clinical experience, volunteer experience, the application activities, and research work. All these aims at giving exposure to an aspiring medical student on the major ideas in relation to

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1 Page

Example Of Air Pollution Annotated Bibliography

Air pollution

Annotated bibliography
Gurjar, Bhola. R. Air Pollution: Health and Environmental Impacts. Florida: CRC Press, 2010. Print.
This is a reliable source of information on air pollution. The book covers the complex nature in which various stakeholders attempt to alleviate the problem of air pollution around the globalized, industrialized world.
Stephenson, John. B. Air Pollution: Air Quality, Visibility, and the Potential Impacts of Coal-Fired Power Plants on Great Basin National Park, Nevada. Pennsylvania: DIANE Publishing, 2010.Print
This is a 22 page report that addresses the problem that faces the environment around the Great National Park posed by the coal fired

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1 Page

Example Of Sodium Essay

With close to 2.8% of the earth’s crust consisting of sodium in compounds, Sodium is by no doubt one of the most abundant elements on earth. The element has an atomic mass of about 22.98 amu and belongs to period 3 Group 1 (1A) (between Lithium and potassium) hence has an atomic number of 11, a valance of 1 and an oxidation state of +1. The Latin name for the symbol of Sodium is Natrium hence the symbol Na while the “Sodium” in Latin is referred to as Sodanum. Additionally, even though the element has

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5 Pages

Example Of Essay On Fritz Haber

Fritz Haber, born in 1868, was a world-renowned German chemist whose multifaceted works in the field of chemistry earned him a Nobel Prize in chemistry in 1918. His most notable work involves the chemical process of synthesizing ammonia, which is used as one of the core ingredients in fertilizers and explosives (Stoltzenberg 84). The entire food industry is arguably dependent on his ingenious method, as most of the food is produced using fertilizers and other elemental components produced using his premier method. Perhaps the most unsettling role he played as one of the world’s most notable genius chemists

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3 Pages

Why I Want To Be A Pharmacists Admission Essay Sample

Admission Essay

No matter what I do, or what pursuit I follow, my ultimate goal has always been to help others. I was born in Cuba, and I came to the United States at the age of 12 with the rest of my family. After graduating high school, I worked as an insurance agent for approximately two years while I attended college. While there, I took a great deal of pleasure from helping my customers find the right plan for them. In this way, I gained satisfaction from making sure people and property were taken care of and safeguarded, and I

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2 Pages

Explanation Report Example

Math Websites

Online education Math websites are essential because they help students to acquire extra math skills. Students can forget various math skills during long vacations. However, with the current online education math websites, students can get as much assistance as possible from the websites. www.mathforum.com is one of the most crucial online education math websites, which provides math tutoring to a diverse group of students. It is made up of an online community of students, parents, teachers, researchers and educators who have great passion for math education (Drexel University, 2012). This online math website includes discussion groups and problems of

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6 Pages

Similarities And Differences Essay Sample

Similarities and differences

In any literacy work, the main theme is depicted and illustrated using different formats. This makes the work have its uniqueness though the main theme may be common for more than one work. This results in production of literacy works with a common theme but using different formats to illustrate and elaborate on the main theme.
The main artistic works that have common themes but use different formats are books (written literature) and artistic works (creations of the mind). The most affected type of work is artistic genre since many artists discuss the main theme as a unit then

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2 Pages

Boltzmanns H-Theorem Research Paper Examples

Ludwig Boltzmann was an Australian physicist who is well known in the world of physics and Chemistry. The main fields that make him a well known person in the field of science are the molecular motion of particles in which he proposes that molecules must have thermal energy on top of other forms of energy for them to move (Klein 45). He contributed immensely in statistical mechanical physics and statistical thermodynamics. By evaluating amount of energy in molecular bodies, his influence stretched further to cover molecular chemistry.
One of the most remembered and significant theory is the H-Theorem. The

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4 Pages