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    1-[Cyano(4-methoxyphenyl)methyl]cycloalkanol (VF-I) synthesized through the reaction of p-methoxyphenylacetonitrile and cyclohexanone using aq. NaOH and tetrabutylammonium hydrogen sulfate as PTC. NaBH4 and CoCl2 in 2:1 THF: H2O used for the reduction of VF-I to obtain 1-(2-amino-1-(4-methoxyphenyl)ethyl)cyclohexanol (VF-II). Further, venlafaxine derivative of the amino acid -carboxamide (VFCA-I toVII ) synthesized through coupling of N-Phthaloyl amino acid chloride derivative (2a-2g-…

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    Essay On Water Rocket

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    Introduction and Overview: For this extended essay, I will be working on building and optimizing different sized water rockets to find out the optimum amount of fuel (water) for each the different rocket sizes. I will be measuring the ranges at which each rocket will fly to find out the optimum fuel level. A brief summary of water rockets: A water rocket is made up of a selection of parts to provide its successful launch: the nose cone which will make the rather snub-nosed end of the large…

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    Redox Catalyst Essay

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    1. Redox Catalyst Catalyst is defined as a substance that increases the rate of a chemical reaction without changing its chemical composition and affecting the standard Gibbs free energy, by lowering the activation energy of a chemical reaction. It does so by providing an alternative reaction pathway. In redox reaction, the key chemical event is the net movement of electrons from one reactant to the other. The oxidation state of atoms are changed. Transition metal is used as redox catalyst due…

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    1. Chemical reactions involved in the oxidation of benzene (adapted from Lupușor et al., 1981) In order to achieve such an analysis, a simplified mathematical model of the reactor was used considering a pseudo-homogeneous, one-dimensional, plug-flow reactor. Model equations…

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    3.1. Chemical composition and monosaccharide analysis Polysaccharide molecules are linked together by water molecules through hydrogen bonds in an aqueous solution. Adding ethanol into aqueous solution of polysaccharide initially dehydrate polysaccharides, enhance intra-molecular hydrogen bonding, cause conformational change and aggregation of polysaccharide molecules, and eventually leads to the precipitation of macromolecular chains, and the following addition of alcohol solvent gradually…

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    Zingerone Essay

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    2. Materials and methods 2.1. Chemicals Zingerone was obtained from Alfa Aesar, Heysham, UK. Cisplatin, Bradford reagent, trichloroacetic acid (TCA), thiobarbituric acid (TBA), reduced glutathione (GSH), glacial metaphosphoric acid (Gmpa), 5,5ˊ-dithiobis-(2-nitrobenzoic acid) (DTNB), proteinase K and agarose were purchased from Sigma-Aldrich Co, MO, USA. All other chemicals and solvents used were of the highest purity grade available. 2.2. Animals Sixty Adult male albino rats (180-200g) were…

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    T is the adiabatic reaction temperature of the pyro-oxidation zone. (Barman, Ghosh, and De) also considered the formation of tar and methane reforming reaction in the pyro-Oxidation zone. The adiabatic reaction temperature is found out by considering heat balance in the zone. Enthalpy of reactants + Heat loss=Enthalpy of products = The heat loss from the oxidation zone was found to be around 10% by Chern(cite). TO is the temperature of biomass fed to the gasifier and Ta is the…

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    The purpose of this study was to investigate the effect of a system that automatically adjusting hydrogen peroxıde Colloıdal-Ag dose to reduce colonization and growth of heterotrophic bacteria in dental unit waterlines and wastewaters. Thirty dental units were assigned into three groups with respect to the protocol employed: Group 1: 10 units were selected for automatic administration. Group 2: 10 units were selected for manual administration and Group 3: 10 units served as controls. Water…

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    3.6 Sorption isotherms The experimental adsorption equilibrium data were analyzed using Langmuir, Freundlich, Temkin and D-R isotherms. The sorption data was analyzed using linear form of all the isotherm equations Models having high correlation coefficient (R2 ) values are considered best fit to represent the sorption data. The Freundlich isotherm holds for multilayer non-ideal adsorption on heterogeneous surface and is represented by the following empirical equation: qe = KF Ce 1/n Where,…

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    Chymopapain Essay

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    compound Energy can reduce the carbon reaction. Enzymes to accelerate specific types of reactions. And the kind of substance that reacts. 2.1.1 catalysis of enzymes E is a catalyst (enzyme). S is a precursor called chop, nitrates and substance P is a product. E + S ---------------> E S ---------------> E + P. Complexometry 2.1.2 Factors affecting the enzyme. 1) What type of controlled substances to an enzyme reaction. 2) the concentration…

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