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What is the value of the corrosion potential (E_corr) for a silver metal electrode in 0.1M silver nitrate (AgNO3) solution of pH 5.5 and temperature 25°C, assuming the electrode as standard hydrogen electrode (SHE) reference?

asked Mar 1 in ElectroChemistry by TheScientist (138k points)

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What is the yield of benzocaine obtained from the synthesis reaction of p-aminobenzoic acid and ethanol, and how does the yield vary with changes in the reaction conditions such as temperature, solvent, and reactant ratios?

asked Feb 28 in Chemical synthesis by TheScientist (138k points)

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What is the heat of sublimation for solid carbon dioxide (dry ice) if 100 grams of it sublimes at a constant pressure of 1 atm and absorbs 25.2 kJ of heat?

asked Mar 1 in ThermoChemistry by TheScientist (138k points)

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What is the enthalpy change in kJ/mol when 2.00 g of methane (CH4) reacts with excess oxygen to form 1.50 g of carbon dioxide (CO2) and 0.75 g of water (H2O)? (Assume all reactants and products are in their standard states at 25°C and 1 atm pressure.)

asked Mar 1 in ThermoChemistry by TheScientist (138k points)

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What is the amount of heat energy required to melt 25 grams of ice at 0°C, given that the enthalpy of fusion of water is 6.01 kJ/mol?

asked Mar 1 in ThermoChemistry by TheScientist (138k points)

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What is the amount of heat absorbed in the process of melting 10 grams of ice at 0°C, given that the enthalpy of fusion of ice is 6.01 kJ/mol? Show the calculations and round off to two significant figures.

asked Mar 1 in ThermoChemistry by TheScientist (138k points)

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What is the effect of temperature on the behavior of a polymer chain using Monte Carlo simulations? Analyze the changes in the radius of gyration of the polymer chain as temperature is varied.

asked Mar 1 in Computational Chemistry by TheScientist (138k points)

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What is the amount of energy required to vaporize 50 grams of water at its normal boiling point? The enthalpy of vaporization of water is 40.7 kJ/mol.

asked Mar 1 in ThermoChemistry by TheScientist (138k points)

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How does the wavelength of light affect the photochemical properties of silver halides in modern photographic emulsions?

asked Feb 28 in PhotoChemistry by TheScientist (138k points)

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What is the difference in energy between the ground state and first excited state of a H2 molecule using the time-dependent Schrödinger equation and what is the resulting wavelength of light absorbed or emitted during the transition?

asked Mar 1 in Quantum Chemistry by TheScientist (138k points)

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What is the electrical conductivity (in S/cm) of a 0.1 M solution of potassium chloride (KCl) at 25 degrees Celsius?

asked Mar 1 in Inorganic Chemistry by TheScientist (138k points)

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How does the wavelength of light and the nature of the organic compound influence the mechanism of a photochemical reaction?

asked Feb 28 in PhotoChemistry by TheScientist (138k points)

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What is the enthalpy change of dissolving 15.0 grams of potassium chloride (KCl) in 250 mL of water, assuming that the density of water is 1.00 g/mL and the final solution temperature is 25.0 °C?

asked Mar 1 in ThermoChemistry by TheScientist (138k points)

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What is the change in enthalpy and entropy when 2 moles of Hydrogen gas reacts with 1 mole of Oxygen gas to form 2 moles of water vapor at a constant pressure of 1 atm and a temperature of 298 K?

asked Mar 1 in Inorganic Chemistry by TheScientist (138k points)

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What surface modifications can be made to biomaterials to enhance their biocompatibility and reduce the risk of adverse reactions when used in medical implants?

asked Mar 1 in Surface Chemistry by TheScientist (138k points)

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How does the variation in electronegativity values of elements affect the type of bonding and the resulting molecular structure formed between them? Provide examples to support your answer.

asked Feb 28 in Chemical education by TheScientist (138k points)

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How does the thickness of graphene affect its electrical conductivity and its potential use as a material for electronic devices?

asked Feb 28 in Materials Chemistry by TheScientist (138k points)

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What is the effect of pH on the zeta potential of colloidal particles and how can it be measured in the laboratory using electrophoresis?

asked Feb 28 in Surface Chemistry by TheScientist (138k points)

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What is the density of a 25.0 mL solution of potassium chloride with a mass of 31.5 grams at 25°C?

asked Mar 1 in Inorganic Chemistry by TheScientist (138k points)

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How does the use of chlorofluorocarbons (CFCs) in refrigerants contribute to the depletion of the ozone layer and what alternative refrigerants can be used to mitigate this impact?

asked Feb 28 in Environmental Chemistry by TheScientist (138k points)

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