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What is the underlying mechanism for the photoinduced electron transfer reaction in metal complexes and how does the choice of ligands affect the efficiency of the reaction?

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

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What is the molar mass of calcium carbonate (CaCO3)?

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

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What types of polymers are commonly used in the production of membranes for water treatment, and how do their chemical properties affect their filtration performance?

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

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What is the activation energy required for the chemical reaction between hydrogen gas and oxygen gas to form water? Given that the rate constant of the reaction is 5.62 x 10^-4 s^-1 at 298 K and the reaction has an overall order of 2.

asked Mar 1 in Chemical reactions by TheScientist (138k points)

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How does the ubiquitin-proteasome system (UPS) function in the degradation and turnover of proteins within a cell and what are the different pathways that target proteins for UPS-mediated degradation?

asked Feb 28 in BioChemistry 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 activation energy required for the oxidation of tin in a solution of hydrochloric acid, given that the standard electrode potential for the Sn2+/Sn couple is -0.14 V and the rate constant for the reaction is 5.6 x 10^-3 molL^-1s^-1 at 25°C?

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

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What is the mechanism behind the Wagner-Meerwein rearrangement and how does it differ from the Pinacol rearrangement in organic chemistry? Provide examples of each reaction and describe the stereochemistry of the products formed.

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

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How can the use of coordination polymers or metal-organic frameworks improve the efficiency of gas separation processes in industry?

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

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What factors contribute to inadequate preparation for chemistry exams among students, and how can these issues be addressed?

asked Mar 1 in Chemical education by TheScientist (138k points)

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What is the effect of changing the concentration of reactants on the rate of reaction for the synthesis of ammonia from nitrogen and hydrogen gas, and how does this affect the profitability of the reaction?

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

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How does the migration of a hydrogen atom in a Wagner-Meerwein rearrangement reaction differ from the migration of an alkyl or aryl group in a Friedel-Crafts rearrangement reaction?

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

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What is the bond energy of O-H bond in the water molecule (H2O)? Show the complete calculation with the given bond dissociation energy of H-O bond and H-H bond.

asked Mar 1 in Chemical reactions by TheScientist (138k points)

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What is the balanced equation for the oxidation of ethanol (C2H5OH) to acetic acid (CH3COOH) and determine the number of electrons transferred in the redox reaction?

asked Mar 1 in Organic 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 type and amount of pesticide residues in certain food products impact the concentration of these residues in the human body after consumption, and what are the potential health effects of prolonged exposure to these residues?

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

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What is the VSEPR geometry of CH4 molecule?

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

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How does the use of renewable energy sources like solar power or wind turbines affect the concentration of atmospheric pollutants such as carbon dioxide (CO2) and sulfur dioxide (SO2) in the environment?

asked Feb 28 in Environmental Chemistry 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 are the specific chemical characteristics and properties that make a molecule effective in treating cardiovascular diseases?

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

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