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How do the size and shape of metallic nanoparticles affect their catalytic activity in the conversion of carbon dioxide to carbon monoxide?

asked Feb 24 in Materials Chemistry by LucilleWhite (2.3k points)

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What are the strongest intermolecular forces present in a sample of water?

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

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What is the solubility of 10 grams of NaCl 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 at 0°C and 1 atm pressure to liquid water at 0°C and 1 atm pressure? Given that the standard enthalpy of fusion of ice is 6.01 kJ/mol.

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

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How does the strength of the ligand affect the crystal field splitting energy in a coordination complex? Provide specific examples and explain the implications of this relationship in coordination chemistry.

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

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What would be the effect of changing the concentration of NaCl solution on the solubility of AgCl? Provide a detailed explanation using the solubility product constant and Le Chatelier's principle to support your answer.

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

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What is the step-by-step procedure for preparing 2,4-dinitrophenol from phenol and nitric acid, and what are the properties and uses of 2,4-dinitrophenol in chemistry and industry?

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

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How do the size and shape of quantum dots affect their photochemical properties?

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

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What is the specific base pairing rule that determines the sequence of a complementary strand of DNA from a given DNA strand, and how does it relate to the specific hydrogen bonds formed between the base pairs?

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

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What is the standard enthalpy of formation of water (H2O) at 25°C and 1 atm pressure, given the heat of formation of hydrogen gas (H2) is +68.32 kJ/mol and the heat of formation of oxygen gas (O2) is zero?

asked Feb 25 in Chemical thermodynamics 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, given that the heat of reaction for the neutralization of 1 mole of HCl and 1 mole of NaOH is -57.1 kJ?

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

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How does the size and shape of metal ions affect the stability and selectivity of metal-organic frameworks?

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

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How does the strength of an applied magnetic field affect the magnetic properties of materials commonly used in data storage, such as iron oxide and cobalt?

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

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How does the size and shape of quantum dots and quantum wells affect their electronic and optical properties, and how can these properties be calculated using quantum chemistry methods?

asked Feb 24 in Quantum Chemistry by GudrunBatten (1.8k points)

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What is the standard enthalpy change of fusion for water? Show your calculation using the given data: the molar enthalpy of fusion of ice is 6.01 kJ/mol and the molar enthalpy of vaporization of water is 40.67 kJ/mol.

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

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What is the standard enthalpy change of formation of hydrogen gas (H2) when one mole of hydrogen gas is formed from its elements under standard conditions, given that the standard enthalpy change of formation for water (H2O) is -285.8 kJ/mol?

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

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1 answer 88 views

What is the effect of nanoparticle size and shape on its photochemical properties? Please provide examples and discuss the underlying mechanisms behind these observations.

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

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How does the size of a metal nanoparticle affect its surface properties when studied using density functional theory calculations?

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

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How does the size and shape of gold nanoparticles affect their optical properties?

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

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How does the strength and type of intermolecular forces impact the boiling point of a substance? Provide a comparison between two substances with different intermolecular forces and explain the factors that contribute to their differing boiling points.

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

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