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How does the size and shape of graphene nanoparticles affect their electronic and optical properties? And, how can we calculate these properties using quantum chemistry principles?

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

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What is the solubility of sodium chloride (NaCl) in water at 25°C, given that its solubility product constant (Ksp) is 36?

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

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What is the maximum amount of sodium chloride that can dissolve in 100 mL of water at 25°C?

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

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What is the standard enthalpy change for the fusion of 1 mole of ice to liquid water at standard conditions of temperature and pressure? (Given: Enthalpy of fusion of water = 6.01 kJ/mol and the specific heat capacity of water = 4.18 J/g*K)

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

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What is the standard enthalpy change for the combustion reaction of one mole of methane gas (CH4) at standard temperature and pressure?

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

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How does the strength and direction of intermolecular interactions affect the formation of supramolecular assemblies, and what computational tools and techniques can be used to study and predict these phenomena?

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

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How do different sizes of quantum dots affect their photochemical properties and fluorescence efficiency in photochemistry experiments?

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

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What is the standard electrode potential of the following redox reaction at 25°C?Fe2+(aq) + 2e- -> Fe(s)Given that the standard electrode potential of Fe2+(aq) is +0.44 V and the standard electrode potential of Fe(s) is 0 V.

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

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What is the standard electrode potential of a silver electrode (Ag) when it is dipped in a solution of silver nitrate (AgNO3) at 298 K and 1 atm pressure? The reduction half-reaction for silver is: Ag+(aq) + e- -> Ag(s).

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

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What is the maximum amount of potassium chloride (KCl) that can be dissolved in 100 mL of water at room temperature?

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

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How does the interaction between nucleic acid components, including nitrogenous bases, sugar, and phosphate, affect the stability of the DNA double helix structure?

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

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How does the size and shape of microplastics affect their toxicity and accumulation in marine organisms?

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

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What is the effect of varying the size of platinum nanoparticles on their catalytic activity in the hydrogenation of a model organic molecule such as benzene?

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

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What is the relationship between the surface charge of colloidal particles and their stability in solution? How can the stability of colloidal particles be manipulated by changing the pH or adding various electrolytes?

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

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What is the standard enthalpy of formation of methane (CH4) at constant temperature and pressure of 25°C and 1 atm respectively, given that the enthalpy change for the reaction C(s) + 2H2(g) -> CH4(g) is -74.8 kJ/mol?

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

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How does the size of a quantum dot or quantum well affect its electronic and optical properties, and how can we calculate these properties using quantum chemistry methods?

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

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How does the size and shape of nanoparticles affect their photochemical properties? Provide experimental evidence to support your answer.

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

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What is the effect of temperature on the stability of oil-in-water emulsions?

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

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What is the standard enthalpy change of neutralization for the reaction between hydrochloric acid and sodium hydroxide? Show all calculations and provide a conclusion based on your result.

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

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How does the size and shape of a nanoparticle affect its behavior and properties, as analyzed through molecular dynamics simulations?

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

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