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What is the optimal reaction conditions (temperature, concentration, and stoichiometry) for the preparation of 2,4,6-trinitrotoluene from toluene and nitric acid to achieve maximum yield and purity?
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Feb 22
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Chemical synthesis
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RudyMms5536
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What is the predicted bond angle for a water molecule (H2O)? Provide a detailed explanation of the factors that determine the bond angle and how they contribute to the specific angle observed in water.
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Feb 22
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Chemical bonding
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JaninaStroh
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What is the effect of pH on the stability and particle interactions of colloidal suspensions?
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Feb 22
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Physical Chemistry
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IeshaC20996
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What is the reaction mechanism for the preparation of 2,4-dinitrophenylhydrazine from hydrazine and 2,4-dinitrochlorobenzene?
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Feb 22
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Chemical synthesis
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MercedesLang
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What is the most effective method to prepare 2,4-dinitrophenol from phenol and nitric acid, and what are the steps involved in the synthesis process?
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Feb 21
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Chemical synthesis
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BrandiBeer01
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What is the effect of the orientation of reactant molecules on the rate of a chemical reaction? Provide examples of reactions and factors that affect the orientation of reactant molecules.
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Feb 22
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Chemical kinetics
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Jeramy48117
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92
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How does the pH of a solution affect the rate of a photochemical reaction and what is the optimal pH range for maximizing the yield of the product in this specific reaction?
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Feb 22
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PhotoChemistry
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Kenneth76952
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What is the net ATP production per molecule of glucose during the Citric acid cycle and oxidative phosphorylation in human cells? Provide a detailed explanation of the energy conversion steps that lead to ATP production in these metabolic pathways.
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Feb 21
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BioChemistry
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PeteWirtz263
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How does the pH of a solution affect the rate of a chemical reaction between substance A and substance B?
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Feb 22
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Chemical kinetics
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StefanHartin
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How does the photochemical properties of a coordination compound change with the variation of the ligand and metal center in the compound? Provide examples of such compounds and their photochemistry.
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Feb 22
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PhotoChemistry
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LynwoodLundg
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What is the percent yield of a reaction if 5.5 grams of product were obtained from the reaction of 7.8 grams of reactant and the theoretical yield of the product is 9.2 grams?
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Feb 22
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Chemical reactions
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VioletteM27
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How does the orientation of reactant molecules affect the rate of reaction, and how can this be quantitatively measured in a controlled laboratory experiment?
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Feb 22
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Chemical kinetics
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JoyGlauert80
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What factors influence the photochemical properties of nanoparticles and how can these properties be controlled to optimize their performance in various applications?
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Feb 22
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PhotoChemistry
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JamisonKwan8
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98
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What is the mechanism of the nucleophilic addition reaction of NaBH4 to benzaldehyde and acetone? Analyze the reaction products and explain the observed stereoselectivity.
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Feb 21
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Organic Chemistry
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RandellGunte
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What are the factors that affect the photochemical properties of metal complexes, specifically in terms of their absorption and emission spectra? How can these properties be manipulated through careful selection of ligands and metal cation?
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Feb 22
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PhotoChemistry
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MarioGgq4193
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How does the photochemical behavior of (+)-carvone differ from that of (-)-carvone, and what is the origin of this difference in terms of their molecular structure and chirality?
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Feb 22
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PhotoChemistry
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AbbieGladden
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What is the optimal reaction conditions and catalyst for the synthesis of high molecular weight polystyrene with a desired molecular weight range of 100,000-500,000 g/mol from styrene monomer?
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Feb 21
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Chemical synthesis
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CaraPrerauer
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105
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What is the effect of the molecular weight of the polymer on the efficiency of polymer-based photovoltaic materials?
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Feb 21
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Polymer Chemistry
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ShanicePeele
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What is the effect of pH on the zeta potential of colloidal particles and how can it be measured accurately in a laboratory setting using electrophoresis?
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Feb 22
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Surface Chemistry
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IeshaC20996
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What is the mechanism behind the formation of the ozone hole in Antarctica and what are the possible methods to reduce its size and impact on the atmosphere?
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Feb 22
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Environmental Chemistry
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Cathern2110
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