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Chemistry Coursework

Ascorbic Acid in Soft Fruit Drinks
According to the text, once all the solution has drained, the experimenter should touch the tip of the pipette to the side of the flask. This helps in removing the last drop of solution from the pipette and helps in avoiding errors. There is no need to blow the last drop of solution out of the pipette.
Pages: 4 (1000 words), Coursework
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Explanations of Structures of Amino Acid, Protein, Glucose, Carbohydrates and Fatty Acids
The primary structure of the protein forms local areas of highly stable repetitious conformations such as alpha helices and beta sheets. These secondary structure conformations are stabilized by hydrogen bonds between the electropositive hydrogen of an amine group and electronegative oxygen of carboxyl group.
Pages: 4 (1000 words), Coursework
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Method of Chemical Strengthening
Needless to say, the less stress over strain ratio a material has the little stress energy it will need to rupture and collapse. Now steel, in general, has 200 GPa and a glass only has 90 GPa. It will take very strong stress energy for the steel to break at a certain length of fracture compared to a glass. 
Pages: 3 (1000 words), Coursework
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Extraction of Metals from their Ores Worksheet
Were discovered around the early 19th century, while less reactive elements, starting from zinc to silver were discovered from 1000 BC dating back to as much as 9000 BC.Method 1: React the metals with cold water, warm water and/or hot water and note the reaction that follows. More reactive metals will react easily with cold water, less reactive metals with react less vigorously with warm water whereas the metals with very low reactivity will not react even with hot water.Method 2: React the
Pages: 6 (1500 words), Coursework
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What effect does the brightness of light have on the growth rate of a plant
This gradient, in turn, drives the production of adenosine triphosphate (ATP), which is necessary to drive the other part of photosynthesis that converts CO2 to carbohydrates (Whitmarsh and Govindjee, 1995).Aside from photosynthesis, light influences the plants on its other functions through molecules called phytochromes. The light-sensing portion (chromophore) of phytochromes has two isomeric forms, the red-absorbing (Pr) and the far red-absorbing (Pfr), with the former being the synthesized
Pages: 4 (1000 words), Coursework
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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 weak but enough to hold the molecules together and deny them free movements.The substance is gaseous form under the existing conditions of
Pages: 4 (1000 words), Coursework
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The Effects of Asbestos from a Perspective of Occupational Health
Of occupational health, tolerability standards, and prevention and control strategies along with current concerns are the core objective of this document. Asbestos denotes a class of naturally happening crystalline components of the Serpentine along with Amphibole clusters of minerals that are metallic-silicates
Pages: 12 (3000 words), Coursework
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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 oxidant OH and its also an important greenhouse gas, however its being depleted at high rate due to emissions due to human activities and
Pages: 4 (1000 words), Coursework
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Polymerization
During this process, organic peroxides and azo compounds are used to facilitate the production of the radicals.I fit were for the case the dissociation favor the reaction much This is where the persulfates are dissociated in the aqueous phase. Therefore, it will help in the emulsion polymerization in that it will diffuse the radical to the hydrophobic monomer containing the droplets.Then it is followed by the electrolysis process where the solution containing both the monomer and the
Pages: 10 (2500 words), Coursework
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Polymerization
During this process, organic peroxides and azo compounds are used to facilitate the production of the radicals.I fit were for the case the dissociation favor the reaction much This is where the persulfates are dissociated in the aqueous phase. Therefore, it will help in the emulsion polymerization in that it will diffuse the radical to the hydrophobic monomer containing the droplets.Then it is followed by the electrolysis process where the solution containing both the monomer and the
Pages: 10 (2500 words), Coursework
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The Major Differences between the Oxygenated and Deoxygenated States of Hemoglobin
In the oxygenated state, the proximal histidine residues as well as the helix carrying it change their positions because of the attachment of an oxygen molecule to heme. This leads to changes in the alpha-beta heterodimers to form the R (relaxed) state. In deoxygenated haemoglobin, the release of an oxygen atom causes a conformational change of the heterodimers. 
Pages: 8 (2000 words), Coursework
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Kinetic of the catalytic decomposition of hydrogen peroxide
Peroxide (H2O2) in an aqueous decomposes very slowly under ordinary conditions which means the reaction will happen without the catalysts being used. The reaction is dependent on the internal energy that disordered and random motion of molecules contributes. Increase temperature will increase molecular speed, on the other hand lower the temperature, lower the internal energy of a substance. However, temperature is indirectly proportional to internal energy. Temperature is a measure of the
Pages: 5 (1250 words), Coursework
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Organic Chemistry unit. skimming and scanning
Relevant but checking time and again if they are hand in hand with topic and also if its related to the question I anticipate to answer at the end of my scanning process. I was scanning for types of polymerizations, the definition of polymerization and more specifically addition polymerization, stages of addition polymerization and equations of reactions of addition polymerization.This is basically because this is the information required to answer questions outlined above. In scanning,
Pages: 4 (1000 words), Coursework
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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 (Coultate 2009, Pg 97). Triacylglycerols and phospholipids are considered to be important. Triacylglycerols are liquid (oils) at room
Pages: 6 (1500 words), Coursework
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COMBUSTION, FUELS AND ENERGY
α represents the progress of the reaction and its value ranges from 0 to 1, m is the sample current weight, mo is the sample initial weight, and k represents rate constant of the reaction. The rate constant is typically given by the Arrhenius function:The most widely used mathematical method in the derivation of activation energy and pre-exponential factor based on TGA experiments is the reaction rate constant method. Assuming the weight loss with time curve is as a result of one or more first
Pages: 6 (1500 words), Coursework
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