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What is the most efficient method for synthesizing polyethylene terephthalate from terephthalic acid and ethylene glycol while ensuring high yield and purity of the final product?

asked Feb 21 in Chemical synthesis by NicholasTwm2 (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 are the different possible resonance structures of the nitrate ion (NO3-) and how do they contribute to the overall structure and properties of the molecule?

asked Feb 21 in Chemical bonding by PalmaYuille (2.1k points)

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How does pH affect the stability and size of silver nanoparticles in a colloidal solution?

asked Feb 22 in Physical Chemistry by YvetteLink0 (2.0k 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 relationship between the optical properties of molecules and their electronic excited states, and how can these properties be calculated using quantum chemistry methods? Provide specific examples of molecules and their electronic transitions.

asked Feb 21 in Quantum Chemistry by KatjaQuinone (2.1k points)

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What is the molecular geometry and polarity of the nitrate ion (NO3-)?

asked Feb 21 in Inorganic 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 effective polymer characterization technique for determining the molecular weight distribution of a polymeric material and how does it work?

asked Feb 21 in Polymer Chemistry by OnaSchnell25 (1.8k points)

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How does the size, shape, and surface characteristics of mesogenic particles affect the phase behavior of liquid crystals in Monte Carlo simulations?

asked Feb 22 in Computational Chemistry by JewelSchaffe (1.8k points)

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How does the pH level affect the rate of the photochemical reaction between a photosensitizer and a substrate?

asked Feb 22 in PhotoChemistry by SenaidaDelac (1.8k points)

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What is the optimal synthesis condition for the production of polyvinylpyrrolidone with high yield and molecular weight from vinylpyrrolidone monomer using a specific catalyst?

asked Feb 21 in Chemical synthesis by CecileHollin (2.3k points)

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How do the physical properties of ionic liquids change with different cation and anion combinations?

asked Feb 22 in Physical Chemistry by JacquieGuzzi (2.2k points)

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What is the optimal simulation time for a Monte Carlo simulation of a liquid crystal system using a specific force field? How does the choice of force field affect the optimal simulation time?

asked Feb 21 in Computational Chemistry by BelenPickard (2.3k 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 optimal reaction temperature and catalyst concentration for the synthesis of polyacrylonitrile from acrylonitrile monomer using ammonium persulfate as the initiator?

asked Feb 21 in Chemical synthesis by KathiFatnown (1.6k points)

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1 answer 89 views

What is the most effective chemical compound for treating chronic obstructive pulmonary disease (COPD) and how can it be synthesized in a cost-effective manner?

asked Feb 21 in Medicinal Chemistry by JacquelynDos (1.7k points)

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1 answer 78 views

What is the effect of different processing techniques on the performance and efficiency of polymer-based photovoltaic materials?

asked Feb 22 in Polymer Chemistry by FelicitasVas (2.1k points)

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What is the net ATP production from the breakdown of one glucose molecule during glycolysis?

asked Feb 21 in BioChemistry by DannieGuf001 (2.3k points)

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