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What is the standard enthalpy change for the sublimation of iodine (I2) at 25°C and 1 atm pressure, given that the standard enthalpy of fusion of iodine is 15.52 kJ/mol and the standard enthalpy of vaporization of iodine is 41.57 kJ/mol?

asked Feb 25 in Chemical thermodynamics by TheScientist (138k points)

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What is the standard enthalpy change for the neutralization reaction of hydrochloric acid (HCl) and sodium hydroxide (NaOH) at 25°C and 1 atm pressure? The balanced equation for the reaction is: HCl (aq) + NaOH (aq) → NaCl (aq) + H2O (l)

asked Feb 25 in Chemical thermodynamics by TheScientist (138k points)

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How do the specific properties of metal alloys, such as strength, ductility, and corrosion resistance, affect their suitability for use in aerospace applications, and how can these properties be optimized for maximum performance and safety?

asked Feb 25 in Materials Chemistry by TheScientist (138k points)

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What is the standard enthalpy change for the sublimation of iodine (I2) given that the standard enthalpy change of formation of iodine molecules is -62.4 kJ/mol and the enthalpy of vaporization of iodine is 41.7 kJ/mol?

asked Feb 25 in Chemical thermodynamics by TheScientist (138k points)

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What factors determine the solubility of a substance in a specific solvent and how can they be quantitatively measured?

asked Feb 25 in Chemical bonding by TheScientist (138k points)

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What is the effect of varying the distance between the atoms in a hydrogen bond on the strength of the interaction, as determined through quantum chemical calculations?

asked Feb 25 in Computational Chemistry by TheScientist (138k points)

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What is the standard enthalpy change for the neutralization of hydrochloric acid (HCl) with sodium hydroxide (NaOH) to form sodium chloride (NaCl) and water (H2O), given that the reaction takes place at standard conditions?

asked Feb 25 in Chemical thermodynamics by TheScientist (138k points)

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What is the heat capacity of 25 grams of water at 25°C if it takes 4184 J of heat to raise its temperature by 1°C?

asked Feb 25 in Chemical thermodynamics by TheScientist (138k points)

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What is the solubility of copper (II) sulfate in water at room temperature?

asked Feb 25 in Chemical bonding by TheScientist (138k points)

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What is the standard enthalpy change for the phase transition of solid water (ice) to liquid water at 0 degrees Celsius?

asked Feb 25 in Chemical thermodynamics by TheScientist (138k points)

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How does the stereochemistry of the starting material affect the stereochemistry of the product in a 1,2-methyl shift rearrangement of cyclohexenes? Provide an example reaction and explain the mechanism behind the observed stereochemistry.

asked Feb 25 in Organic Chemistry by TheScientist (138k points)

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What is the standard electrode potential for the reduction of Ag+ ions to Ag(s) at a temperature of 25°C, given that the standard electrode potential for the standard hydrogen electrode is 0.00 V and the standard electrode potential for Ag+/Ag is +0.80 V?

asked Feb 25 in ElectroChemistry by TheScientist (138k points)

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How do the specific coordination geometries of metal ions affect the function and activity of metalloenzymes and metalloproteins in biological systems?

asked Feb 25 in Coordination Chemistry by TheScientist (138k points)

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What is the standard enthalpy of formation of carbon dioxide (CO2) from its elements at standard conditions if the standard enthalpy of formation of carbon (C) and oxygen (O2) are -94.05 kJ/mol and 0 kJ/mol, respectively?

asked Feb 25 in ThermoChemistry by TheScientist (138k points)

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What is the standard enthalpy change of neutralization for the reaction between hydrochloric acid (HCl) and sodium hydroxide (NaOH)? Assume that the reaction occurs in aqueous solution and that the products are water (H2O) and sodium chloride (NaCl).

asked Feb 25 in Chemical thermodynamics by TheScientist (138k points)

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How does the specific amino acid sequence of a protein determine its unique 3D structure and function in important biological processes such as enzyme catalysis?

asked Feb 25 in BioChemistry by TheScientist (138k points)

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How does the chemical composition and concentration of emulsifiers affect the stability of oil-in-water emulsions?

asked Feb 25 in Surface Chemistry by TheScientist (138k points)

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How does the size and shape of graphene nanoribbons affect their electronic and optical properties compared to bulk graphene? Provide calculations to support your answer.

asked Feb 25 in Quantum Chemistry by TheScientist (138k points)

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How do the structural and electronic properties of zeolites influence their catalytic activity in hydrocarbon conversion reactions, and how can this information be used to design more efficient catalysts using computational chemistry approaches?

asked Feb 25 in Computational Chemistry by TheScientist (138k points)

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What is the standard enthalpy change for the formation of 1 mole of carbon dioxide (CO2) gas from solid elemental carbon (C) and gaseous molecular oxygen (O2) at 298 K? The relevant balanced chemical equation is: C(s) + O2(g) → CO2(g).

asked Feb 25 in Chemical thermodynamics by TheScientist (138k points)

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