Recent questions in Chemistry

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What is the optimal molar ratio of phenol to nitric acid for the preparation of 2,4-dinitrophenol, and how does changing this ratio affect the yield and purity of the final product?

asked Feb 21 in Chemical synthesis by TaneshaDoss0 (1.9k points)

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1 answer 36 views

What is the optimal molar ratio of aniline to nitric acid for the preparation of p-nitroaniline through nitration, and how does altering the ratio affect the yield and selectivity of the product?

asked Feb 21 in Chemical synthesis by ShaneY52932 (2.0k points)

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What is the optimal molar ratio of adipic acid to hexamethylenediamine for the synthesis of nylon-6,6 with the highest yield and purity?

asked Feb 21 in Chemical synthesis by TraciCoomes1 (1.9k points)

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What is the optimal molar ratio of acetic anhydride and salicylic acid required for the synthesis of acetylsalicylic acid with the highest yield possible?

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

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What are the optimal laboratory conditions (temperature, pressure, solvent, reaction time) for the synthesis of polyvinylpyrrolidone from vinylpyrrolidone monomer to obtain the highest yield?

asked Feb 21 in Chemical synthesis by BlancaVennin (1.5k points)

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1 answer 28 views

What is the optimal doping concentration of boron in silicon for the fabrication of high-performance solar cells? How does the concentration of boron in silicon affect the electrical properties of the resulting semiconductor material?

asked Feb 21 in Materials Chemistry by FinleyConsta (2.4k points)

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What is the optimal design for a chemical system that can produce surfactants with a high yield, purity, and efficiency?

asked Feb 21 in Chemical engineering by LeonelSiede (1.9k points)

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What is the optimal temperature, pressure and amount of initiator needed for the successful synthesis of polyvinyl chloride from vinyl chloride monomer?

asked Feb 21 in Chemical synthesis by DominickPlum (2.5k 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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What are the optimal conditions for photosensitizer-mediated photochemical reactions to occur?

asked Feb 21 in PhotoChemistry by ZaraEnderby5 (2.1k points)

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What are the optimal conditions and parameters required for 3D printing of polylactic acid (PLA) polymer, and how do these conditions affect the mechanical properties and print quality of the final product?

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

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1 answer 40 views

What is the optimal concentration of nitric acid and sulfuric acid in the preparation of 2,4,6-trinitrotoluene from toluene to achieve the highest yield and purity of the final product?

asked Feb 21 in Chemical synthesis by EdwardCecili (1.9k points)

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What is the optimal composition of a metal alloy for use in the construction of a high-temperature turbine blade for aerospace applications, and what properties of the alloy are responsible for its superior performance under these conditions?

asked Feb 21 in Materials Chemistry by WayneYcs587 (2.5k points)

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What is the optimal composition of a metal alloy, based on its physical and chemical properties, for use in manufacturing aircraft engines that are capable of withstanding high temperatures and pressures during flight?

asked Feb 21 in Materials Chemistry by AnitraSchard (2.1k points)

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1 answer 37 views

What are the optimal composition and thermal treatment conditions for a titanium alloy that exhibits high strength, low density, and excellent corrosion resistance for use in aerospace applications?

asked Feb 21 in Materials Chemistry by JaneenBarrie (1.6k points)

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1 answer 28 views

What is the optimal catalyst and reaction conditions for the polymerization of styrene monomer to produce high molecular weight polystyrene with controlled molecular weight distribution and low polydispersity index?

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

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1 answer 33 views

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 effect of nanoparticle size on their optical properties? Specifically, how does changing the size of silver nanoparticles affect their absorption and scattering of light in the visible spectrum?

asked Feb 21 in Physical Chemistry by RoseIqw0722 (2.0k points)

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1 answer 30 views

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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1 answer 29 views

How does the monomer selection and polymerization process affect the optical properties of the resulting polymer-based optical material?

asked Feb 21 in Polymer Chemistry by ClydeC545764 (2.2k points)

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