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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 optimal ratio of diisocyanate to polyol for synthesizing polyurethane with the desired mechanical properties?

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

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What is the optimum reaction condition (temperature, pressure, and catalyst) required for the synthesis of polyethylene terephthalate (PET) using terephthalic acid and ethylene glycol as starting materials?

asked Feb 22 in Chemical synthesis by Dylan31U6281 (2.0k points)

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How does the number of layers in graphene affect its electronic and optical properties, and how can these properties be calculated using quantum chemistry methods?

asked Feb 21 in Quantum Chemistry by Camilla86G58 (1.8k points)

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What is the optimum reaction conditions for the preparation of 2,4-dinitrophenol from phenol and nitric acid, including the concentration of the reactants, temperature, and reaction time?

asked Feb 22 in Chemical synthesis by LeroyBothwel (1.9k points)

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What is the most efficient and cost-effective method for producing a specific fragrance compound in large quantities using chemical engineering principles?

asked Feb 21 in Chemical engineering by ArleneLeichh (2.1k points)

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What would be the optimal process conditions (e.g. temperature, pressure, and reaction time) for the production of biofuels from agricultural waste using a specific type of catalyst to achieve maximum yield and purity?

asked Feb 21 in Chemical engineering by CletaF793120 (2.8k points)

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How does the nature of the incoming ligand affect the rate of ligand substitution reaction in coordination chemistry? Provide specific examples that support your answer.

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

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What is the most effective way to model the behavior of long-chain polymers using Monte Carlo simulations and how can this be used to predict the physical properties of polymer systems?

asked Feb 21 in Computational Chemistry by TobiasTudawa (1.9k points)

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1 answer 86 views

How does varying the pH of the reaction medium affect the rate of a photochemical reaction?

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

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How does the molecular weight of a polymer affect its physical properties, such as tensile strength and elongation?

asked Feb 21 in Physical Chemistry by Benedict1233 (1.9k points)

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What is the optimal reaction conditions (temperature, pressure, and concentration) for the preparation of phenylalanine from benzyl chloride and ammonia, and how do these conditions affect the yield and purity of the final product?

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

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What is the optimum wavelength range for sunscreen agents to be effective in protecting the skin from UV radiation?

asked Feb 22 in PhotoChemistry by DeloresQ3217 (1.6k points)

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What is the most effective method for synthesizing carbon nanotubes?

asked Feb 21 in Materials Chemistry by EloisaPtm353 (1.9k points)

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What is the optimal conditions for the adsorption of methylene blue dye on activated carbon with a specific surface area of 1000 m2/g and how does the pH of the solution affect the adsorption efficiency?

asked Feb 21 in Surface Chemistry by GraceChaves1 (2.0k points)

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How do the photochemical properties of supramolecular assemblies depend on the shape and size of the assemblies, as well as the composition of the molecules involved in the supramolecular assembly?

asked Feb 22 in PhotoChemistry by RemonaRainey (1.6k points)

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What are the resonance structures for the molecule of nitrate ion (NO3-)? Show how the pi electron density is distributed across the atoms in each resonance structure.

asked Feb 21 in Chemical bonding by Lula12H24597 (2.6k points)

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1 answer 91 views

What is the optimal ratio of terephthalic acid to ethylene glycol, and the best reaction conditions necessary, to obtain the highest yield of polyethylene terephthalate in the synthesis process?

asked Feb 21 in Chemical synthesis by CalebHartman (2.0k points)

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What is the optimal catalyst concentration and temperature required for the synthesis of high molecular weight polystyrene using bulk polymerization?

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

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What is the optimal temperature and pressure conditions for the synthesis of polyethylene oxide with a desired molecular weight using ethylene oxide monomer as the raw material?

asked Feb 21 in Chemical synthesis by TorySelwyn2 (2.1k points)

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