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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 are the factors affecting the stability of colloidal particles and how can you prevent coagulation in a given colloidal system?

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 specific arrangement of amino acids in a protein determine its 3-dimensional structure, and how does this structure relate to the function of the protein?

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

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How does the strength of the non-covalent interaction between a cation and an anion in a salt bridge vary with the size of the ions, as calculated using quantum chemical methods?

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

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What is the standard enthalpy change for the reaction taking place between hydrogen gas and oxygen gas to produce water vapor at standard conditions?

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

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How does the size of nanoparticles affect their catalytic activity in a specific reaction, and how can this size be manipulated to optimize their performance as catalysts?

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

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What is the maximum amount of sodium chloride (NaCl) that can be dissolved in 100 mL of water at 25°C?

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

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What factors determine the stability of inorganic compounds, and how can we predict whether a given compound will be stable or not? Provide specific examples to support your answer.

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

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How does the strength and nature of non-covalent interactions vary between different types of molecules, and how can quantum chemical calculations be used to predict these interactions?

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

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What are the factors that affect the stability of emulsions and how can they be manipulated to increase stability in a particular emulsion?

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

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What is the solubility of potassium nitrate (KNO3) in water at room temperature (25°C), and how does this value compare to the solubility of sodium chloride (NaCl) in water at the same temperature?

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

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How does the size and shape of nanomaterials affect their catalytic activity for a specific reaction?

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 of formation of methane gas at 298 K, assuming ideal gas behavior?

asked Feb 25 in Quantum Chemistry 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 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 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 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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How does the size of particles affect their stability in colloidal solutions, and how can this information be used to control the stability and behavior of the colloidal system?

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

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