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What is the activation energy for the oxidation of hydrogen gas at a Pt electrode, where the overpotential is 100 mV and the current density is 0.5 mA/cm2?

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

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How does the temperature affect the rate of photochemical reactions in the presence of a photosensitizer?

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

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How does the wavelength of light affect the photochemical properties of coordination compounds? Provide examples of coordination compounds that have different photochemical behaviors depending on the wavelength of light used in the experiment.

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

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How does the variation of metal ions in A-site affect the electronic and optical properties of perovskite materials?

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

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What are the effluent treatment strategies that can be employed for the remediation of heavy metal polluted water?

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

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What is the ideal reaction condition and catalyst for the synthesis of polyvinyl alcohol from vinyl acetate monomer, and how does the molecular weight of the resulting polymer vary with changes to reaction conditions?

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

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What is the enthalpy change of combustion for butane (C4H10) given that 2.50 g of butane is burned completely in oxygen to produce 8.64 kJ of heat energy?

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

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How does the type of solvent affect the rate of chemical reactions?

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

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What is the density of a sample of sodium chloride (NaCl) with a mass of 5.0 grams and a volume of 2.0 mL? Show all computations and include units in the final answer.

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

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How does the type of oil spilled affect the severity of its impact on the environment in the context of an oil spill?

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

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What is the current density (in A/cm²) of a copper electrode in contact with a 1 M solution of CuSO₄ at 25°C, assuming that the reduction of Cu²⁺ to Cu has an exchange current density of 10⁻⁶ A/cm² and a concentration overpotential of 20 mV?

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

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What is the effect of various chemical dispersants on the biodegradation of oil spilled in marine environments?

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

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What is the VSEPR geometry and the molecular shape of a molecule with 4 bonding pairs and 0 lone pairs of electrons around the central atom?

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

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How does the use of solar energy impact the environment in terms of greenhouse gas emissions and resource depletion?

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

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What are the factors that affect the stability of emulsions, and how can they be controlled to enhance the shelf life of emulsions?

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

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What is the step-wise mechanism for the synthesis of polypropylene from propylene monomer using a Ziegler-Natta catalyst, and how does the process affect the molecular weight and microstructure of the resulting polymer?

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

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What is the step-wise mechanism for the synthesis of ibuprofen from 2-methylpropylbenzene and carbon dioxide using a cobalt catalyst?

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

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The problem for the chemistry student to solve is: What is the corrosion rate of iron (Fe) in a sea environment if it loses 5 grams of mass during one month?

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

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What is the VSEPR geometry of a molecule with the chemical formula CHCl3?

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

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What is the corrosion rate of a copper metal in a 0.1 M HCl solution at 25°C and atmospheric pressure if the electrode potential of the copper metal is -0.34 V and the current density is 0.35 mA/cm²?

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

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