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What is the optimum temperature and pressure for the production of polyethylene oxide from the monomer ethylene oxide using a catalytic reactor? And what are the key properties of the resulting polymer, such as molecular weight and functionality?

asked Feb 22 in Chemical synthesis by MarcyLowrie (2.3k points)

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How do the photochemical properties of silver nanoparticles differ from those of gold nanoparticles in terms of catalytic efficiency and reaction rates under different light intensities?

asked Feb 22 in PhotoChemistry by RandolphWvo (1.9k points)

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How does the photochemical activity of chiral molecules vary with changes in the orientation of their optical isomers relative to the light source?

asked Feb 22 in PhotoChemistry by RobynButz517 (1.9k points)

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How does pH affect the stability of colloidal particles and their tendency to coagulate?

asked Feb 22 in Surface Chemistry by GavinMott60 (1.8k points)

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How does the photochemical behavior of metal complexes change with regards to their ligand environment?

asked Feb 22 in PhotoChemistry by FredrickNobe (2.2k points)

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What is the optimum reaction temperature for the synthesis of polyvinylpyrrolidone from vinylpyrrolidone monomer using different catalysts and what effect do these catalysts have on the reaction?

asked Feb 22 in Chemical synthesis by ClairWaite7 (1.8k points)

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What would be the optimal ratio of phenol to nitric acid for the preparation of 2,4-dinitrophenol, and how could this ratio affect the yield and purity of the final product?

asked Feb 21 in Chemical synthesis by GermanFranki (1.8k points)

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What is the most efficient way of synthesizing graphene oxide-based nanocomposites for use in water purification and how do the physical and chemical characteristics of the resulting material affect its performance?

asked Feb 21 in Materials Chemistry by TomokoSorian (2.2k points)

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What is the most efficient and cost-effective method to produce industrial gases such as nitrogen, oxygen, and hydrogen on a large scale using chemical engineering principles? And how can the purity of each gas be ensured during the production process?

asked Feb 21 in Chemical engineering by Joey98948916 (1.5k points)

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What is the resonance structure of the phenoxide ion, and how does this resonance stabilize the ion?

asked Feb 22 in Organic Chemistry by DelorasGaise (1.9k points)

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How does the change in pH affect the structure and function of a specific protein? Provide a detailed explanation with relevant examples.

asked Feb 22 in BioChemistry by DemetriusCha (1.7k points)

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What is the optimal temperature and pressure condition for synthesizing polyethylene from ethylene monomer using Ziegler-Natta catalyst and how does it affect the molecular weight and density of the resulting polymer?

asked Feb 21 in Chemical synthesis by RockyParas48 (2.5k points)

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What is the most efficient synthesis method for producing biodegradable polymers with controlled degradation rates and desirable physical properties suitable for biomedical applications like drug delivery systems?

asked Feb 21 in Polymer Chemistry by MarisolWebst (1.8k points)

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What is the overpotential for the reduction of copper ions to copper metal at a cathode if the standard potential for the reaction is +0.34 V and the actual potential applied is +0.50 V?

asked Feb 22 in ElectroChemistry by SimonMcWilli (1.9k points)

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What is the optimum reaction conditions required for the synthesis of polyvinylpyrrolidone from vinylpyrrolidone monomer, and how do these conditions affect the molecular weight and viscosity of the resulting polymer?

asked Feb 22 in Chemical synthesis by DarioLoftin2 (1.7k points)

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What is the rate constant for the one-electron reduction of oxygen in aqueous solution at pH=7, and how does this rate constant change with pH?

asked Feb 21 in Quantum Chemistry by YvonneRausch (2.0k points)

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What is the optimum reaction conditions (temperature, pressure, catalyst, etc.) for the synthesis of polystyrene from styrene monomer to yield a maximum percentage yield and molecular weight?

asked Feb 22 in Chemical synthesis by ClydeC545764 (2.2k points)

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What is the most efficient method for synthesizing a highly pure sample of the coordination compound [Fe(H2O)6]Cl3, and how can this compound be characterized by spectroscopic techniques such as UV-Vis and IR spectroscopy?

asked Feb 21 in Coordination Chemistry by Mose2866156 (1.6k points)

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What is the optimum reaction condition for the synthesis of polystyrene from styrene monomer, in terms of temperature and initiator concentration, to achieve the highest yield and highest molecular weight?

asked Feb 22 in Chemical synthesis by VeolaBenjafi (2.2k points)

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What is the net yield of ATP per one cycle of the Citric Acid Cycle and Oxidative Phosphorylation?

asked Feb 21 in BioChemistry by JudithMackni (2.3k points)

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