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What is the rate constant and mechanism for the reaction between ethylene and hydrogen at 298 K and 1 atm pressure, and how does the rate change when the temperature is increased to 373 K?

asked Feb 22 in Quantum Chemistry by BarbraTorr0 (1.7k points)

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1 answer 89 views

How does the presence of a catalyst affect the rate of a specific heterogeneous catalytic reaction, and how do the properties of the catalyst material influence its efficacy?

asked Feb 22 in Surface Chemistry by BrandiBeer01 (2.4k points)

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What are the optimal conditions (temperature, length of reaction, concentration of reactants) for the preparation of 2,4,6-trinitrotoluene from toluene and nitric acid to achieve the highest yield possible?

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

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How does the rate of the chemical reaction between hydrogen and oxygen change as the pressure is increased from 1 atm to 5 atm at a constant temperature of 25°C?

asked Feb 22 in Chemical kinetics by JaninaStroh (2.1k points)

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What is the primary structure of a protein and how does it affect the protein's function?

asked Feb 22 in BioChemistry by ErmelindaSey (1.8k points)

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What is the optimum conditions (temperature, pressure, and reaction time) required for the preparation of 2-chloro-4-nitroaniline from aniline and chlorine gas with high yield and purity?

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

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How do the physicochemical properties of a drug affect its pharmacokinetics in the human body?

asked Feb 22 in Medicinal Chemistry by AlfonsoJanze (1.9k points)

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What is the optimum reaction conditions (temperature and time) for the preparation of 2-chloro-4-nitroaniline from aniline and chlorine gas while maintaining high yield and purity?

asked Feb 22 in Chemical synthesis by KenOlvera57 (2.1k points)

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How does the polarity of the solvent affect the rate of a photochemical reaction of a particular compound and what is the mechanism behind it?

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

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1 answer 109 views

What is the most efficient reaction condition to synthesize high molecular weight polyvinylpyrrolidone from vinylpyrrolidone monomer and what is the effect of different initiators used in the reaction?

asked Feb 21 in Chemical synthesis by KaraTva8370 (2.3k points)

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1 answer 87 views

How does the presence of heavy metals in soil impact the growth and quality of crops, and what are the most effective methods for soil remediation to minimize the effects of contamination on agriculture?

asked Feb 22 in Environmental Chemistry by AngelikaYvu6 (1.9k points)

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What is the step-by-step reaction mechanism for the preparation of 2-chloro-4-nitroaniline from aniline and chlorine gas, and what are the optimal conditions required to yield a high conversion rate?

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

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How does the presence of reaction intermediates influence the rate of a chemical reaction? Provide experimental evidence to support your answer using a specific reaction and varying the concentration of the intermediate.

asked Feb 22 in Chemical kinetics by AlishaGolder (1.9k points)

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How does the presence of heavy metals in industrial effluents affect the quality of groundwater in the surrounding area and what measures can be taken to minimize its impact on the environment?

asked Feb 22 in Environmental Chemistry by Osvaldo14767 (1.8k points)

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What is the effect of changing the concentration of reaction products on the reaction rate of the chemical reaction between hydrochloric acid and sodium thiosulphate?

asked Feb 22 in Chemical kinetics by PeggyBednall (1.9k points)

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1 answer 89 views

How does the presence of a catalyst affect the rate constant of a reaction with a specific mechanism?

asked Feb 22 in Chemical kinetics by CierraSpicer (1.4k points)

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What is the optimum temperature and time required for the preparation of 2,4-dinitrophenol from phenol and nitric acid, and what is the yield of the reaction?

asked Feb 22 in Chemical synthesis by Wilbur29087 (1.8k points)

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1 answer 97 views

What is the difference in the photochemical properties of the enantiomers of a chiral molecule and how does it affect their reactivity and reaction mechanism in photochemical reactions?

asked Feb 22 in PhotoChemistry by AlmedaGooch6 (1.7k points)

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How do the photochemical properties of enantiomers differ and what are the molecular mechanisms behind these differences?

asked Feb 22 in PhotoChemistry by SVNCarissa5 (1.8k points)

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How does the photochemical property of a dye or pigment affect its ability to bleach or fade when exposed to sunlight? Use specific examples to explain the underlying photochemical reactions involved.

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

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