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What is the enthalpy change for the hydrolysis reaction of sucrose (C12H22O11) in water, given that the molar heat of combustion for sucrose is -5632 kJ/mol and the standard enthalpy of formation for liquid water is -285.83 kJ/mol?

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

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What is the balanced half-reaction for the oxidation of ethanol (C2H5OH) to acetic acid (CH3COOH) and what is the oxidation state change of carbon in this reaction?

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

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What is the magnetic moment of a molecule with a given geometry and electron configuration?

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

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What is the bond energy (in kJ/mol) of the covalent bond between the carbon and oxygen atoms in carbon dioxide (CO2), given that the bond length is 116.3 pm?

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

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Identify the type of intermolecular forces present in acetone (CH3COCH3). Explain why this particular type of intermolecular force is present in acetone.

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

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What is the pH of a solution with a concentration of 0.005 M hydrochloric acid (HCl)?

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

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What is the enthalpy change for the dissolution of 5 grams of solid NaOH in 100 mL of water, given that the final temperature of the solution is 25°C? The heat capacity of the solution is 4.18 J/g°C.

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

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What is the environmental impact of using biofuels as a renewable energy source compared to traditional fossil fuels for transportation?

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

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What is the corrosion rate of iron in a 0.1 M HCl (hydrochloric acid) solution at room temperature (25°C) if it loses 5 grams of mass after being immersed in the solution for 2 hours?

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

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What are the chemical compounds present in polluted water that cause harmful effects on aquatic life, and how can we effectively remove or minimize their presence in order to restore and maintain the health of the aquatic ecosystem?

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

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What are the main reasons that make it difficult for students to understand complex chemical concepts, and what strategies can be adopted to overcome these barriers to learning?

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

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How does increasing the temperature affect the photochemical reaction rate of [specific chemical] under [specific wavelength of light]?

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

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What are the necessary steps and reagents needed for the synthesis of polypropylene from propylene monomer, and what are the optimal reaction conditions for achieving a high yield and desired molecular weight of the polymer?

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

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How does the synthesis method affect the characteristics and performance of new materials used in fuel cells?

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

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How does the use of a catalyst affect the rate of a chemical reaction? Can you provide experimental evidence to support your answer?

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

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What is the standard enthalpy change for the fusion reaction between aluminum and oxygen to form aluminum oxide if 10 grams of aluminum reacts completely with excess oxygen under standard conditions?

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

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How can the use of polymer-based drug delivery systems be optimized for efficient and targeted drug delivery?

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

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What is the standard entropy change of the combustion reaction of methane gas under standard conditions?

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

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What is the amount of heat required to completely vaporize 200 g of water at its boiling point of 100°C, given that the enthalpy of vaporization of water is 40.7 kJ/mol?

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

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What is the enthalpy change for the combustion of 1 mole of methane gas (CH4) at standard conditions, given the following information: ΔHf(CH4) = -74.8 kJ/mol, ΔHf(H2O) = -285.8 kJ/mol and ΔHf(CO2) = -393.5 kJ/mol?

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

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