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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 enthalpy of formation of carbon dioxide (CO2) given that the standard enthalpy of combustion of carbon (C) and hydrogen gas (H2) are -394 kJ/mol and -286 kJ/mol, respectively?

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

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What is the effect of pH on 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 metallic silver nanoparticles affect the efficiency of silver halide photochemical reactions in photosensitive materials used in photography?

asked Feb 25 in PhotoChemistry 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 do variations in temperature and emulsifier concentration 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 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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What factors affect the solubility of inorganic salts in water, and how can we predict the solubility of a particular salt based on its chemical structure and properties?

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

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How does the electrolyte concentration affect the stability of a colloidal dispersion? Provide experimental evidence to support your answer.

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

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What is the standard enthalpy change for the vaporization of 50 grams of water at its boiling point (100°C) and standard pressure (1 atm)?

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

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How does the size and shape of host molecules affect their ability to bind with guest molecules in supramolecular systems, and how can computational methods be used to study and predict these interactions?

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

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What are the factors affecting the size and shape of nanoparticles, and how can these properties be manipulated to enhance their catalytic activity?

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

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How does the strength of hydrogen bonding between water molecules vary at different temperatures? Use quantum chemical calculations to determine the changes in bonding energy and intermolecular distance as water is heated from 0°C to 100°C.

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

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How does the size and shape of nanomaterials affect their electronic and optical properties, and can quantum chemical calculations be used to predict and optimize these properties for specific applications?

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

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What factors affect the stability of inorganic compounds, and how can they be used to predict whether a compound will be stable or not? Provide specific examples and explain the reasoning behind your predictions.

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

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What is the effect of the size of nanoparticles on their optical and catalytic properties, and how can this information be used to design more efficient catalysts and sensors?

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

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What is the standard enthalpy change for the fusion reaction of solid sulfur at its melting point to become liquid sulfur at its boiling point?

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

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What are the effects of nanoparticle size on their catalytic activity?

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

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What is the standard enthalpy change for sublimation of iodine, given that the heat of fusion of iodine is 15.4 kJ/mol and the heat of vaporization of iodine is 41 kJ/mol?

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

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