Recent questions in Chemistry

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What is the rate of a gas-phase reaction in which nitrogen dioxide decomposes into nitric oxide and oxygen gas at a rate constant of 2.0 x 10^-3 s^-1 when the concentration of nitrogen dioxide is 0.10 M and the reaction is carried out at 450 K?

asked Feb 20 in Physical Chemistry by NateDicks693 (1.8k points)

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What is the optimum conditions (concentration, temperature, and reaction time) for the preparation of phenylalanine from benzyl chloride and ammonia using the Gabriel synthesis method?

asked Feb 20 in Chemical synthesis by Sylvia941924 (1.9k points)

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What is the reaction mechanism for the synthesis of primary amines using the Gabriel synthesis?

asked Feb 20 in Organic Chemistry by Von968188852 (2.0k points)

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What is the standard enthalpy change for the fusion reaction of hydrogen atoms to form helium atoms? Give the equation for the reaction and show all calculations involved in determining the answer.

asked Feb 20 in Chemical thermodynamics by TatianaSteil (2.3k points)

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How does the functionalization of metal-organic frameworks affect their ability to selectively adsorb carbon dioxide from a mixture of gases, and what factors influence this selectivity?

asked Feb 20 in Computational Chemistry by TeshaDeuchar (1.9k points)

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How do the functional groups present in biomolecules like proteins and nucleic acids dictate their unique properties and functions in living systems?

asked Feb 20 in Organic Chemistry by TracieM73151 (2.5k points)

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Which functional group in the molecule CH3COOH is responsible for its acidic properties and what is the mechanism of its reaction with a base?

asked Feb 20 in Organic Chemistry by EdwinStambau (2.4k points)

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What is the mechanism of the Friedel-Crafts alkylation reaction of benzene with tert-butyl chloride in the presence of aluminum chloride catalyst?

asked Feb 20 in Organic Chemistry by LarhondaKeel (1.6k points)

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What is the mechanism of the Friedel-Crafts acylation reaction, and how does it differ from the Friedel-Crafts alkylation reaction, in the context of synthesizing monoacylated benzene derivatives? Explain with an example of the reaction.

asked Feb 20 in Organic Chemistry by BonnieSayre (2.1k points)

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What is the optimum temperature and pressure needed to prepare 2,4-dichlorobenzoic acid from benzoic acid and chlorine gas using Friedel-Crafts acylation reaction? Additionally, what is the yield of the reaction under these conditions?

asked Feb 20 in Chemical synthesis by TVMBeulah703 (2.4k points)

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What is the mechanism of the Friedel-Crafts acylation reaction and how does it differ from the Friedel-Crafts alkylation reaction when synthesizing aromatic compounds? Provide an example of each reaction and explain their selectivities.

asked Feb 20 in Organic Chemistry by Juliana93U49 (2.3k points)

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What is the frequency (in cm⁻¹) of the stretching vibration of the C=O bond in a molecule of acetone (CH₃COCH₃) observed in the infrared spectrum at 1715 cm⁻¹?

asked Feb 20 in Physical Chemistry by Denny08T6070 (2.5k points)

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How does the frequency and intensity of infrared radiation relate to the types of molecular vibrations observed in a given compound? Provide specific examples to support your answer.

asked Feb 20 in Physical Chemistry by AveryJoris20 (2.0k points)

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How does the framework topology of a zeolite affect its catalytic properties for the cracking of long-chain alkanes? Use computational methods to analyze and compare the catalytic activity of two different zeolites with different framework topologies.

asked Feb 20 in Computational Chemistry by JacquelynDos (1.7k points)

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1 answer 37 views

What is the reaction mechanism for the formation of water from hydrogen gas and oxygen gas? Use quantum chemical calculations to determine the energy profile of the reaction and identify the transition state.

asked Feb 20 in Computational Chemistry by KarolinBroth (1.5k points)

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1 answer 38 views

How does the formation of the thymine dimer affect DNA replication and what mechanisms are in place to repair this type of damage?

asked Feb 20 in BioChemistry by PhillipPugli (2.1k points)

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How will the change in pH affect the formation of the iron(III)-thiocyanate complex ion equilibrium?

asked Feb 20 in Chemical equilibrium by QAMSibyl4514 (2.0k points)

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How does a change in pH affect the formation of the complex ion Cu(NH3)4^2+ from Cu2+ and NH3? Provide a detailed explanation with chemical equations and calculations.

asked Feb 20 in Chemical equilibrium by TeshaDeuchar (1.9k points)

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How does the formation of surface oxides lead to passivation and prevent corrosion in metals exposed to acidic environments?

asked Feb 20 in Surface Chemistry by AWSReginald (2.2k points)

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How does the formation of reaction products affect the rate of the chemical reaction between hydrochloric acid and magnesium ribbon?

asked Feb 20 in Chemical kinetics by MaggieTrujil (1.6k points)

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