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What is the yield of benzocaine obtained from the preparation of benzocaine using p-aminobenzoic acid and ethanol, and how does the yield vary with different temperatures?

asked Feb 28 in Chemical synthesis by TheScientist (138k points)

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How does the temperature of a system affect the energy transfer processes and molecular dynamics of a gas-phase reaction?

asked Feb 28 in Quantum Chemistry by TheScientist (138k points)

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What is the corrosion current density of a steel pipe in a saltwater environment with a temperature of 25°C and a pH of 7.5, given that the corrosion potential is -0.85 V and the Tafel slope is 120 mV/dec?

asked Mar 1 in ElectroChemistry by TheScientist (138k points)

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What is the vibrational frequency of the C-H bonds in methane and how does it relate to the wavelength of the radiation absorbed during infrared spectroscopy?

asked Feb 28 in Physical Chemistry by TheScientist (138k points)

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What is the type of bonding present in Sodium Chloride (NaCl)?

asked Feb 28 in Chemical bonding by TheScientist (138k points)

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What is the enthalpy change involved in the isomerization reaction of hexene from trans-hexene to cis-hexene? Given the standard enthalpy of formation values for trans-hexene and cis-hexene are -123 kJ/mol and -130 kJ/mol respectively.

asked Mar 1 in ThermoChemistry by TheScientist (138k points)

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What is the mechanism of the Williamson ether synthesis reaction? Explain how the reaction occurs and identify the roles of the reagents involved in the reaction.

asked Feb 28 in Organic Chemistry by TheScientist (138k points)

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What methods can be used to modify adhesion properties of coatings on different substrates in surface chemistry?

asked Mar 1 in Surface Chemistry by TheScientist (138k points)

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How can the use of green chemistry principles lead to the development of more efficient and sustainable methods for the synthesis of nanoparticles with desirable properties for specific applications in materials chemistry?

asked Feb 28 in Materials Chemistry by TheScientist (138k points)

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How does the variation of lattice constant of perovskite materials affect their band gap energy and optical properties, as calculated through quantum chemistry methods?

asked Feb 28 in Quantum Chemistry by TheScientist (138k points)

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What is the change in enthalpy of a chemical reaction if 25 grams of methane gas (CH4) reacts with excess oxygen gas (O2) to produce carbon dioxide gas (CO2) and water vapor (H2O) at a constant pressure of 1 atm and a temperature of 298 Kelvin?

asked Mar 1 in Physical Chemistry by TheScientist (138k points)

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How does the variation of metal ions in A-site affect the electronic and optical properties of perovskite materials?

asked Feb 28 in Quantum Chemistry by TheScientist (138k points)

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What is the change in enthalpy and entropy for the reaction of 2 moles of hydrogen gas (H2) and 1 mole of oxygen gas (O2) to form 2 moles of water (H2O) at standard conditions?

asked Mar 1 in Inorganic Chemistry by TheScientist (138k points)

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What is the activation energy required for the chemical reaction between hydrogen gas and oxygen gas to form water? Given that the rate constant of the reaction is 5.62 x 10^-4 s^-1 at 298 K and the reaction has an overall order of 2.

asked Mar 1 in Chemical reactions by TheScientist (138k points)

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What is the effect of pH on the zeta potential of colloidal silica nanoparticles and how can it be measured using electrophoresis technique?

asked Feb 28 in Surface Chemistry by TheScientist (138k points)

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What is the enthalpy change of combustion for butane (C4H10) given that 2.50 g of butane is burned completely in oxygen to produce 8.64 kJ of heat energy?

asked Mar 1 in ThermoChemistry by TheScientist (138k points)

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What is the mechanism of the Wagner-Meerwein rearrangement and how does it differ from the Pinacol-Pinacolone rearrangement? Provide a detailed explanation and drawing of the reaction mechanism.

asked Feb 28 in Organic Chemistry by TheScientist (138k points)

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What common trends can be observed in the periodic table of elements and how can they be used to predict the chemical properties of various elements?

asked Mar 1 in Chemical education by TheScientist (138k points)

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How can the use of coordination polymers or metal-organic frameworks improve the efficiency of gas separation processes in industry?

asked Feb 28 in Coordination Chemistry by TheScientist (138k points)

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How does the synthesis process impact the properties and performance of new materials for use in gas sensors?

asked Feb 28 in Materials Chemistry by TheScientist (138k points)

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