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What is the standard enthalpy change for the reaction of 2 moles of carbon with 1 mole of oxygen to form carbon monoxide, given that the process occurs at standard conditions?

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

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How can you design a photochemical experiment to distinguish between the enantiomers of a chiral compound and determine their specific photochemical properties?

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

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What is the yield of 2,4-dinitrophenylhydrazine obtained from the reaction of hydrazine and 2,4-dinitrochlorobenzene if 5 grams of hydrazine and 7 grams of 2,4-dinitrochlorobenzene are used and the resulting product weighs 4.5 grams?

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

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How can we design a novel medication for autoimmune diseases that specifically targets the dysfunctional immune cells and/or modulates the immune response without causing significant adverse effects on other healthy cells and bodily functions?

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

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What is the standard Gibbs free energy change (in kJ/mol) for the reaction 2H2O (l) -> 2H2 (g) + O2 (g) at 298 K, given that the enthalpy change (ΔH) for the reaction is -483.60 kJ/mol and the entropy change (ΔS) for the reaction is 69.91 J/mol.K?

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

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How can we use the principles of medicinal chemistry to design a drug that specifically targets and destroys leukemia cells while minimizing harm to healthy cells in the body?

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

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What is the standard free energy change for the following redox reaction at 298K?Cr2O7(2-) + 14H(+) + 6e(-) → 2Cr(3+) + 7H2O(l)Given: E°(Cr2O7(2-)/Cr(3+)) = 1.33 V and E°(H2O/O2) = -0.82 V.

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

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How can we design and synthesize a photochromic material that exhibits rapid and reversible photochromic behavior in response to visible light without the use of toxic or environmentally harmful components?

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

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What is the vibrational frequency of CO2 molecule in cm-1 using infrared spectroscopy with a wavelength of 4.24 µm? (The molecular bond length can be assumed to be 116.3 pm)

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

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What is the vibrational frequency and the infrared spectrum of a water molecule (H2O) in its ground state using the harmonic oscillator model?

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

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How to design a chemical reactor for the production of 500 grams of acetic acid per hour using a catalyst at a specific temperature and pressure? What would be the optimum size of the reactor and the required flow rate of reactants?

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

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What is the theoretical yield of AgCl produced when 50 mL of 0.1 M NaCl solution is mixed with 50 mL of 0.1 M AgNO3 solution?

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

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What is the standard enthalpy change for the reaction of [Fe(H2O)6]2+(aq) + 2Cl-(aq) → [FeCl4]2-(aq) + 6H2O(l)? Given the following bond enthalpies: Fe-Cl = 242 kJ/mol, O-H = 463 kJ/mol, and H-Cl = 431 kJ/mol.

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

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In an electrochemical experiment, the anodic and cathodic Tafel slopes were found to be 100 mV/decade and 120 mV/decade, respectively. Calculate the value of exchange current density for the reaction.

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

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What is the standard enthalpy change of combustion for methane gas (CH4) at 298 K? Given that the standard enthalpy of formation of CO2(g) and H2O(l) are -393.5 kJ/mol and -285.8 kJ/mol, respectively.

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

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How can we calculate the thermodynamic properties of a gas (such as internal energy, entropy, and free energy) by using different thermodynamic ensembles and statistical mechanical principles?

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

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What is the standard enthalpy change (ΔH°) for the reaction of 1 mole of liquid ethanol (C2H5OH) and 1 mole of liquid oxygen (O2) to produce 2 moles of gaseous carbon dioxide (CO2) and 3 moles of liquid water (H2O)?

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

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What methods can be used to investigate the mechanical properties of biomaterials for use in tissue engineering, and how do these methods inform the design of these materials for optimal tissue regeneration?

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

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Suppose you are given 500 mL of 0.1 M acetic acid and 0.1 M sodium acetate buffer solution. You add 2 mL of 1 M hydrochloric acid to the buffer solution. Calculate the new pH of the solution and explain how the buffer system resists changes in pH.

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

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How can we control the lifetime of the excited state in a phosphorescent material to increase its efficiency as a light-emitting material, and what factors affect the lifetime of the excited state?

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

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