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Importance of carbon in chemistry
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Recommended: Importance of carbon in chemistry
The discovery and development of BuckminsterFullerenes
A report by Libby McConnell
Introduction to carbon and basic chemistry concepts
Fullerenes a modern material discovered in 1985 are essentially an allotrope of the element carbon. Carbon itself is one of the most common elements found on the earth today, the sixth most abundant in the world. Anything deemed “living” is carbon containing and naturally occurring or organic. In fact an entire subsection of chemistry is dedicated to the study of carbon related science, it is called organic chemistry. Throughout the ages carbon has being extracted from coal deposits. As it is found in 90 % of all chemical known to man, most fuels, oils and LPG gases are hydrocarbons such as methane. Ethanol is a common alcohol used in many beverages and also contains carbon. Glucose which is our body’s main source of energy is made up of 6 parts carbon, 12 parts hydrogen and 6 parts oxygen C6H12O6. Along with hydrogen and Oxygen, Carbon is an organic molecule found on this planet. It is the sixth element on the periodic table found in group 14, period 2. A black solid at room temperature, and has an atomic mass of 12 meaning each atom contains 6 electrons, 6 protons and 6 neutrons. However, as carbon is mostly found in conjunction with other elements,
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Carbon also forms varying naturally occurring materials known as, allotropes. The two most common allotropes of Carbon are graphite, a black soft and smooth substance most commonly known in graphite pencil, it is often used as a lubricant. Another carbon allotrope which is starkingly different to graphite is Diamond, a rare hardened jewel. In 1985 however, a new allotrope was discovered and named buckminsterfullerene or fullerenes for short. Named after Buckminster fuller an architect which had previously designed a spherical building almost identical to the new allotropes similar
Carbon Dioxide (CO2) is a colorless gas, which was first discovered in 1577 by Van Helmont who detected it in the products of both fermentation and charcoal burning. CO2 is used in solid, liquid, and gas forms in a variety of industrial processes. These include: beverage carbonation, dry ice, welding and chemicals manufacturing. It is produced by the combustion of all carbonaceous fuels and can be recovered in an abundance of ways. It is widely used today as a by-product of synthetic ammonia production, fermentation, and from flue gases by absorption process. CO2 is also a product of animal metabolism and is important in the life cycles of plants and animals. It is present in the atmosphere only in small quantities (.03% by vol.)
There are four different types of hydrocarbons each having a different homologous series (formula for carbon chain). These being an alkane (formula = CnH2n+2), alkene (formula = CnH2n), alkyne (formula = CnH2n-2), and an alkanol which has the same formulae as an alkane only that is has a hydroxide molecule which replaces one of the hydrogen atoms (refer to figure 3 and
There are lots of natural processes constantly happening all around us, these processes are often linked by passing one type of atom to the next process which passes the same atom to the next one and so on. This ‘passing of the atom’ along a chain of processes is called a cycle, the series of processes in which the carbon atom goes through is called the carbon cycle. Each Carbon is the fourth most affluent element in the universe and is an important part of most molecules that make up most of the world’s natural resources and organic matter, which is why the carbon cycle is one of the most important cycles on earth. Through-out the cycle, carbon can become several different forms such as sugar, oil, diamond and marble. Processes such as photosynthesis, combustion and the compression of the earth play key roles in changing, containing and releasing carbon. All the chemical reactions and processes and forms carbon creates are part of the carbon cycle, which is one of the most important cycle on earth. The majority of carbon on earth is in the atmosphere the rest is stored in rocks, fossil fuels, oceans, plants and soil. Carbon is constantly being added to the atmosphere, the most common forms being carbon dioxide and methane gas. At the same time it’s being removed by plants on land and in the oceans. Carbon can be stored for hundreds of years in sediment, fossil fuels, rocks and the ocean. The carbon in the atmosphere is almost always a compound called carbon dioxide.
Carbon dioxide or CO2 is known to be one of a number of gases that are astonishingly transparent to the visible light that falls on the Earth from the Sun, but it absorb the infra-red radiation that emitted by the warm surface of our Earth, to prevents its loss into space. Moreover, CO2 has varied considerably and this affected the Earth’s temperature. Most common source of this CO2 is known as the fossil fuel. Fossil fuels are primarily coal, hydrocarbons, natural gas, or fuel oil that formed from the remains of the dead plants and also animals. The burning fossil fuel that has been created by humans is the largest source of emissions of the carbon dioxide.
Hydrogen is a tasteless, odorless, colorless gas. Hydrogen is found in group 1 and period 1 on the periodic table. Hydrogen is classified as a nonmetal on the periodic table. The symbol for hydrogen is represented by an H, its atomic number is 1, and its atomic weight is 1.0079. The hydrogen atom consists of one proton, which has a positive charge, and one electron, which has a negative charge. The term hydrogen comes from two Greek words meaning water-former. Henry Cavendish, an English scientist, discovered it in 1766. Named by Lavoisier, hydrogen is the most abundant of all elements in the universe. The sun and many other stars consist of mostly hydrogen. It is the third most abundant element on earth. It is estimated that hydrogen makes up more than 90% of all the atoms or three quarters of the mass of the universe. Hydrogen plays an important part in powering the universe though both the proton-proton reaction and carbon-nitrogen cycle. Hydrogen occurs in almost all organic compounds. Many of the compounds found in plant and animal tissues are organic. Production of hydrogen in the U.S. alone now amounts to about 3 billion cubic feet per year. Some of the methods that hydrogen is prepared by are steam on heated carbon, decomposition of certain hydrocarbons with heat, action of sodium or potassium hydroxide on aluminum, or displacement from acids by certain metals. Hydrogen may be condensed to a liquid that boils at -257.87°C and freezes at -259.14°C. Hydrogen ...
The oxygen atom is joined to the hydrogen atom as well as the carbon atom, which makes the oxygen a part of a hydroxyl group. These atoms are generally part of a hydrocarbon chain. These alcohols can take away water from the body, in which a hydrocarbon chain has replaced a hydrogen atom. Alcohols have a general structure of CnH2n+1OH. The aim of this investigation is to see the link between the number of carbon atoms in a fuel with the amount of energy it releases.
early 1990’s, no such material was known. In 1991, carbon nanotubes were discovered. Although not
Graphene refers to a single layer of graphite, with sp2 hybridized carbon atoms arranged in a hexagonal...
Eighteen percent of our body weight is made up of carbon. Carbon atoms make up important molecules in our bodies such as proteins, DNA, RNA, sugars, and fats. These molecules are called macromolecules. Carbon bonding to itself results in a wide variety of organic compounds, which means that organic compounds are carbon-based carbons. Most matter in living organisms that is not water is made of organic compounds. Nearly everything that is touched is organic. Four main classes of organic compounds that are needed for life are carbohydrates, lipids, proteins, and nucleic acids.
Carbon itself is one of the most abundant elements in the universe. It can be found in the sun, the stars, comets, and the atmospheres of most planets. There are close to ten million known carbon compounds, many thousands of which are vital to the basis of life itself. In normal combustion, the output would yield two oxygen molecules in combination with one carbon molecule to from carbon dioxide, or CO2. If not enough oxygen is present when the combustion occurs, one molecule is taken in by the carbon molecule to produce carbon monoxide (CO).
I chose carbon because of its many useful allotropes of which the three most well known are diamond, graphite, and graphene. Depending on the allotropic form, the physical properties of carbon vary, for example, the diamond is transparent and graphite is black and opaque. I also chose carbon because it has untapped potential to benefit our lives and its many uses continue to
A major part of the carbon cycle occurs as carbon dioxide is converted to carbohydrates through photosynthesis. Carbohydrates are utilized by animals and humans in metabolism to produce energy and other compounds. Carbohydrates are initially synthesized in plants form a complex series of reactions involving photosynthesis. They store energy in the form of starch or glycogen in animals and humans. They provide energy through metabolism pathways and cycles. Carbohydrates also supply carbon for synthesis of other compounds. (Berdanier, Pgs 45-47).
In chemistry there are a lot of elements on the periodic table. One of the elements is hydrogen. Hydrogen the first element in the periodic table it is colorless, combustible and lightest of all gases. It was first artificially produced in the early 16th century by Henry Cavendish. As we know hydrogen can be used as fuel, and the fossil fuel energy has been used in many areas, but human can’t produce the fossil energy fuel by themselves, the more we use, the less we have left, so hydrogen may be used as the most common use fuel instead of gases in the future, it is not only used as fuel but also extensively used in different areas, such as industry, agriculture, medicine, and research.
A Diamond is one of the two natural minerals that are produced from carbon. The other mineral is Graphite. Even though both of these minerals are produced from the same element ,carbon, they have totally different characteristics. One of the most obvious difference is that Diamond is hard and Graphite is soft. The Diamond is considered to be the most hardest substance found in nature. It scores a perfect ten in hardness. Because of its hardness a tiny Diamond is used as a cutting and drilling tool in industry. Even the Greeks called the Diamond “adamas” which means unconquerable. Diamonds also conducts heat better than any other mineral .
Hydrocarbons Hydrocarbons are key to the study of organic chemistry as they make up most of the compounds or at least the basis of the compounds. These compounds contain only hydrogen and carbon, with an example being methane. Most hydrocarbons occur naturally due to organic matter decaying over large periods of time. There are three main types of hydrocarbons, saturated, unsaturated and aromatic hydrocarbons.