Carbon

be stated as a chemical compound of Silicon and the carbon. Edward G. Acheson was running an experiment on the synthesis of diamonds. At that time, it was produced by a high temperature electro chemical reaction of sand and carbon. We can also find the silicon carbide very rarely in nature in very small amounts. Also Edward G. Acheson was the first person to synthesize Silicon carbide. He used to pass an electric current through a mixture of carbon and clay for the synthesis of SiC. Still today,…

Chemistry Task 2 Portfolio Outline and examine some uses of different metals through history, including contemporary uses, as uncombined metals or as alloys. Metal/Metal Alloy Uses Throughout History Copper - Used to make ornaments and domestic utensils in historical times (not as tools as it is a soft metal) - In modern times used in electrical wiring, pipes and plumbing fittings, jewellery, decoration, - This is due to its malleability, ductility and good electrical conductivity. Bronze…

Fossil fuels started millions of years ago before the dinosaurs first inhabited the Earth and formed from prehistoric plants and animals hundreds of million years ago. All the energy in oil, gas, and coal originally came from the sun, captured through photosynthesis (Trefil and Hazen 2013, p.53). Over time, rock, sand, and sediment concealed the organic matter and after some years it established huge quantities of fuels. These under the surface resources are still the main fuel source for…

the capacity to combust in the company of basic substances such as ammonia or sodium cyanide. What is its structure? The structure of Hydrogen cyanide is H-C≡N. HCN is a linear molecule and has a triple bond between Carbon and Nitrogen which is strong whereas Hydrogen and Carbon are connected by a single bond making the bond weak. HCN as has a 180° angle. What are its physical properties? Molecular weight 27.0253 g/mol Molecular formula HCN Colour Colourless gas Odour Sweetish Taste…

printer to produce a commercially viable product is at a strategic advantage, if Carbon successfully creates a brand position, it can preempt competition in that segment by identifying and fulfilling printing needs of the target audience. The reading ‘Brand positioning’ advises that, the process of formulating brand’s positioning starts with developing a compelling positioning statement. The article mentions that, Carbon has decided its target market segment as major Health care and Automobile…

bromonium ion and the other is a secondary carbocation. For the first intermediate, the second bromine ion attacks from under the bromine ion that is already present in the structure because of steric hindrance. It can attack either left or right carbon but each would make the same compound. This forms the product meso-stilbene dibromide. For the second intermediate, the bromine ion can attack in two ways, from either side. The result is either a cis or trans product forming fifty percent of the…

The role of oxysterols in human body and disease 1. Introduction Oxysterols are 27-carbon derivatives of cholesterol created by spontaneous or enzymatic oxidation (Figure 1, (Brown and Jessup, 2009)). The oxidation of cholesterol occurs either on the side chain or on the sterol core. Side chain oxidation generates, e.g., 24-hydroxycholesterol (24-HC), 25-hydroxycholesterol (25-HC) or 27-hydroxycholesterol (27-HC) while the core oxidation gives rise to ring oxysterols, mostly ring-B oxysterols,…

gently for 5 minutes. Allow the mixture to cool slightly and filter by gentle suction and wash it 3-4 times with CCl4. Recrystallize it from the boiling water. Mechanism: The Reaction involves: Nucleophilic attack of NH2 of glucine on the carbonyl carbon of benzoyl chloride Rearrangment and deprotonation (elimination of HCl molecule) to give benzoyl glycine Step II: Preparation of 4-Benzylidine-2-phenyl-oxazol-5-one from benzoyl…

Lithium is an element with the atomic number 3 on the periodic table. Its atomic symbol is Li. Lithium belongs in the most reactive group on the periodic table which is called alkali metal. Lithium under standard conditions is the lightest metal it is also one of the least dense solids. Lithium has an atomic mass of 6.94 and density of 0.534. Lithium is a soft silver white looking metal. Lithium melts at 357 degrees and boils at a temper of 2426 degrees. Thanks to lithium's ability to reach…

The experiment made use of two reactions in synthesizing 1-phenylazo-2-naphtol, also known as Sudan-1. The first is the diazotization reaction in which a diazonium salt is formed from the conversion of primary aromatic amines, such as aniline, to compounds with the nitroso functional group using a nitrous acid, such as HNO2. The diazonium salt was then used as an electrophile in a coupling reaction with an aromatic compound, β-naphthol. Recrystallization was conducted and yielded 0.18 g of a…