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What is the specific effect of increasing temperature on the reaction rate of the reaction between sodium thiosulphate and hydrochloric acid, and how can this be explained in terms of the collision theory?

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

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What is the specific chemical or structural difference between the cell walls of Gram-positive bacteria and Gram-negative bacteria that allows for the development of drugs targeting only one type of bacteria?

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

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What is the solubility of potassium chloride (KCl) in water at 25°C, and how does the solubility change with temperature? Provide a conceptual explanation for why this occurs based on the principles of solvation and intermolecular forces.

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

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What is the standard enthalpy change for the sublimation of iodine, given the following information: the standard enthalpy of fusion of solid iodine is 15.52 kJ/mol, and the standard enthalpy of vaporization of iodine is 41.91 kJ/mol?

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

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What is the solubility of table salt (NaCl) in water at room temperature and pressure, and how does it relate to the type of chemical bond present in NaCl? Provide a detailed explanation of the factors that influence solubility in this case.

asked Feb 25 in Chemical bonding 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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What is the specific metal ion surrounded by ligands in the active site of the enzyme carbonic anhydrase, and how does this coordination complex enable the enzyme to catalyze the conversion of carbon dioxide and water into bicarbonate and protons?

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 factors affect the solubility of inorganic salts in water, and how can we predict the solubility of a particular salt? Use specific examples and experimental data to support your answer.

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

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What is the effect of pH on the stability of a colloidal sol of Fe(OH)3? 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 reaction of ethanol (C2H5OH) given that the heat of vaporization at its boiling point of 78.4 °C is 38.56 kJ/mol?

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

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How does the size of a molecule or nanoparticle affect the quantum transport properties, such as conductivity and resistance, in molecular and nanoscale systems?

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

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What is the expected solubility of sodium chloride (NaCl) in water at 25°C based on its theoretical solubility and the effect of temperature on solubility?

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

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What spectroscopic technique can be used to determine the coordination number and geometry of a metal ion in a coordination compound? Provide an example of how this technique can be used to determine the structure of a coordination complex.

asked Feb 25 in Coordination Chemistry 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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What is the maximum amount of sodium chloride (NaCl) that can dissolve in 100 mL of water at various temperatures (0 °C, 25 °C, and 100 °C), and how does temperature affect its solubility?

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

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What is the standard enthalpy change for the phase transition from liquid water to steam at 100°C and 1 atm pressure, given that the molar heat of vaporization of water is 40.7 kJ/mol?

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

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How does the size of the polymer chain affect its conformations in a Monte Carlo simulation?

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

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What is the specific metal center and coordination geometry of the active site in the metalloenzyme carbonic anhydrase, and how does this structure allow for the efficient catalysis of the hydration of carbon dioxide to bicarbonate?

asked Feb 25 in Coordination Chemistry 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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