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What is the standard enthalpy change for the sublimation of iodine at 25°C and 1 atm?
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Feb 25
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Chemical thermodynamics
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What is the solubility of table salt (NaCl) in water, and what factors affect its solubility in the solvent?
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Feb 25
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Chemical bonding
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What is the relationship between the size and shape of nanoparticles and their photochemical properties? Specifically, how does the absorption and emission spectra of gold nanoparticles change as their size and shape are varied?
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Feb 25
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PhotoChemistry
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What is the impact of intermolecular forces on the solubility of a substance in a given solvent?
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Quantum Chemistry
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What is the solubility of sodium chloride (NaCl) in water at different temperatures and how does it vary with the increase in temperature?
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Feb 25
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Chemical bonding
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What are the factors that affect the strength of a covalent bond? How can the understanding of these factors help in predicting the bond strength and molecular structure of a compound?
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Feb 25
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Chemical education
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What is the maximum amount of NaCl that can dissolve in 100 ml of water at room temperature?
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Feb 25
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Physical Chemistry
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What is the maximum amount of sodium chloride that can be dissolved in 100 grams of water at room temperature?
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Feb 25
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Chemical bonding
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How does the size and shape of gold nanoparticles affect their photochemical properties, particularly their ability to generate reactive oxygen species for potential applications in photodynamic therapy?
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Feb 25
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PhotoChemistry
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How does the size and surface area of microplastics affect their ability to absorb and release harmful chemicals in seawater, and what are the potential impacts of this on marine organisms and ecosystems?
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Feb 25
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Environmental Chemistry
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What is the standard enthalpy change for the combustion of methane gas (CH4) at 298 K and 1 atm pressure?
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Feb 25
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Physical Chemistry
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What criteria can be used to predict the stability of inorganic compounds and how do they influence the formation and properties of these compounds?
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Feb 25
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Inorganic Chemistry
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What is the effect of the size and shape of silver nanoparticles on their optical properties, such as absorption and scattering, as calculated through quantum chemistry methods?
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Feb 25
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Quantum Chemistry
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What is the relationship between the size and shape of quantum dots and their photochemical properties?
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Feb 25
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PhotoChemistry
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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?
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Feb 25
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Quantum Chemistry
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TheScientist
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How does the size and shape of nanomaterials affect their catalytic activity for a specific reaction?
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Feb 25
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Materials Chemistry
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What is the solubility of potassium chloride at room temperature in grams per liter and in moles per liter? How do temperature and pressure affect the solubility of potassium chloride in water? Provide a brief explanation with relevant equations.
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Feb 25
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Physical Chemistry
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TheScientist
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What is the standard enthalpy of formation of hydrogen gas (H2) given that the standard enthalpy of combustion for hydrogen gas is -286 kJ/mol and the standard enthalpy of formation of water (H2O) is -285.8 kJ/mol?
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Feb 25
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ThermoChemistry
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How does the size and shape of metal nanoparticles affect their catalytic activity in the production of hydrogen gas from water?
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Feb 25
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Materials Chemistry
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What factors affect the solubility of inorganic salts in water? Provide specific examples and discuss how they influence the solubility of the salts.
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Feb 25
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Inorganic Chemistry
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