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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 effect of the molecular weight and polymer chain structure on the electrical conductivity of conductive polymers for use in flexible electronics?

asked Feb 20 in Materials Chemistry by Bernice06378 (1.4k points)

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What is the role of the excited state in the mechanism of photochemical reactions in organic compounds? How does it impact the selectivity and efficiency of the reaction?

asked Feb 20 in PhotoChemistry by MellisaOlivo (1.9k points)

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What is the glass transition temperature of polyvinyl chloride (PVC) and how does it affect its mechanical properties?

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

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What is the effect of the electronic and steric properties of a ligand on the rate of substitution in a coordination complex?

asked Feb 20 in Coordination Chemistry by BarbraTorr0 (1.7k points)

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What is the change in enthalpy for the reaction: 2H2 + O2 → 2H2O, given the following thermochemical equations and their respective enthalpy changes: 2H2 + O2 → 2H2O, ΔH = -484 kJ/mol H2 + ½O2 → H2O, ΔH = -286 kJ/mol

asked Feb 20 in Chemical reactions by ChuWegener2 (2.1k points)

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What is the pH of 0.1 M solution of HCl knowing that its dissociation constant is 1.3 x 10^-4?

asked Feb 20 in Inorganic Chemistry by TeshaPennell (1.6k points)

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How does the folding pattern of a protein affect its function in the human body, and how do changes in the protein's environment impact its folding ability and ultimately its functionality?

asked Feb 20 in BioChemistry by ReinaldoBull (2.2k points)

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How does the folding of a protein affect its function in the body, specifically in the context of enzyme catalysis?

asked Feb 20 in BioChemistry by DeenaTrundle (2.2k points)

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What is the effect of varying temperature on the selectivity of the reaction between compound A and compound B, and how does this relate to the reaction rate? Provide evidence and explain the mechanism behind any observed changes in selectivity.

asked Feb 20 in Chemical kinetics by DeloresKuhn6 (2.1k points)

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How do changes in the number of carbon layers affect the electronic and optical properties of graphene and other 2D materials?

asked Feb 20 in Quantum Chemistry by SheilaSchaef (1.8k points)

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What is the enthalpy of ionization for sodium, given that it takes 495 kJ/mol to remove one electron from a neutral sodium atom, and 4562 kJ/mol to remove a second electron from the sodium 1+ ion?

asked Feb 20 in ThermoChemistry by AHIKayleigh (2.3k points)

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What is the geometry and polarity of the ammonia molecule, NH3?

asked Feb 20 in Inorganic Chemistry by EmerySynan65 (1.8k points)

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How does the geometry of metallofullerenes and metalloclusters affect their reactivity with different ligands?

asked Feb 20 in Coordination Chemistry by Margene00368 (1.8k points)

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What is the enthalpy of combustion of ethanol (C2H5OH) if the standard enthalpy change of combustion of ethanol is -1367 kJ/mol and the heat of formation of water (H2O) is -285.8 kJ/mol?

asked Feb 20 in ThermoChemistry by TatianaSteil (2.3k points)

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How do the electronic and optical properties of conjugated polymers change with varying pi-conjugation lengths?

asked Feb 20 in Quantum Chemistry by DorothyHendo (2.2k points)

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What is the heat of combustion (in kJ/mol) of butane (C4H10) gas at 25°C and 1 atm pressure, assuming complete combustion?

asked Feb 20 in Chemical reactions by WalterC19362 (2.4k points)

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What is the exchange current density for the oxidation reaction of copper in a 1 M CuSO4 solution, given that the electrochemical rate constant is 5.2 × 10^-3 cm/s and the surface area of the electrode is 0.05 cm^2?

asked Feb 20 in ElectroChemistry by Estella80D9 (2.2k points)

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What is the predicted reactivity trend for the halogens (Group 17) in terms of their electronic configuration, and how does this trend relate to their ability to gain electrons?

asked Feb 20 in Inorganic Chemistry by SherrillDail (1.6k points)

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