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What effect does changing the pH from 2 to 6 have on the equilibrium position of the redox reaction between Fe2+ and MnO4- in acidic solution?

asked Feb 3 in Chemical equilibrium by Kristian7404 (410 points)

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How does changing the pH affect the formation of the complex ion Cu(NH3)4 2+, when copper(II) sulfate and excess ammonia are mixed together? How can the equilibrium constant (Kc) be calculated for this reaction at different pH values?

asked Feb 3 in Chemical equilibrium by SherrillThom (390 points)

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Calculate the pH of a 0.1 M solution of hydrochloric acid (HCl) assuming complete dissociation of the acid in water, and identify if the solution is acidic, basic or neutral.

asked Feb 3 in Inorganic Chemistry by MamieGreenwe (350 points)

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How do chaperone proteins assist in the folding of newly synthesized proteins, and what are the consequences of improper protein folding?

asked Feb 3 in BioChemistry by JayneChapin (370 points)

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Calculate the standard enthalpy change for the neutralization reaction between hydrochloric acid (HCl) and sodium hydroxide (NaOH) in aqueous solutions. The balanced chemical equation for the reaction is as follows:HCl(aq) + NaOH(aq) → NaCl(aq) + H2O(l) Given the enthalpy of formation for HCl(aq) is -167.2 kJ/mol, NaOH(aq) is -469.14 kJ/mol, NaCl(aq) is -407.3 kJ/mol, and H2O(l) is -285.83 kJ/mol. The reaction is carried out at standard temperature and pressure.

asked Feb 3 in Chemical thermodynamics by ThereseWyric (370 points)

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Calculate the percent composition of copper sulfate pentahydrate (CuSO4 • 5H2O).

asked Feb 3 in Inorganic Chemistry by JennaCottle (310 points)

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How does changing the reactant concentration affect the rate constant of a complex reaction mechanism, and can this relationship be used to predict changes in the overall reaction rate?

asked Feb 3 in Chemical kinetics by EulaliaManes (350 points)

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Calculate the standard enthalpy change for the vaporization of 25.0 g of water at 100°C, given that the molar enthalpy of vaporization is 40.7 kJ/mol.

asked Feb 3 in Chemical thermodynamics by LillieHussai (450 points)

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Calculate the standard enthalpy of formation of water (H2O) given the following information:- The standard enthalpy of formation of hydrogen gas (H2) is 0 kJ/mol- The standard enthalpy of formation of oxygen gas (O2) is 0 kJ/mol- The standard enthalpy of combustion of hydrogen gas is -286 kJ/mol- The standard enthalpy of combustion of carbon (C) is -394 kJ/mol- The standard enthalpy of combustion of methane gas (CH4) is -890 kJ/mol

asked Feb 3 in ThermoChemistry by SuzetteSmile (150 points)

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Calculate the standard electrode potential for the redox reaction between copper and silver ions, given the following half-equations:Cu2+(aq) + 2e- → Cu(s) E° = +0.34 VAg+(aq) + e- → Ag(s) E° = +0.80 V

asked Feb 3 in Chemical thermodynamics by AdelaVillago (630 points)

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Calculate the standard enthalpy of formation of water (H2O) given the following information: ΔHf° of H2(g) = 0 kJ/molΔHf° of O2(g) = 0 kJ/molΔHf° of H2O2(l) = -188.2 kJ/mol

asked Feb 3 in ThermoChemistry by JessieStGeor (530 points)

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Calculate the resistance of an electrochemical cell given the following parameters: - The cell has a total area of 50 cm² and a separation between the electrodes of 2 cm.- The electrolyte solution has a conductivity of 2.5 × 10⁻⁴ S/cm and a temperature of 25°C.- The electrode on the left side of the cell is made of platinum and has a surface area of 25 cm². The electrode on the right side is made of silver and has a surface area of 25 cm².- The distance between each electrode and the solution is 0.5 cm.

asked Feb 3 in ElectroChemistry by Cortney07C58 (350 points)

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Calculate the standard enthalpy change for the reaction between Aquapentamminecobalt(III) chloride and sodium hydroxide to form Aquapentamminecobalt(III) hydroxide and sodium chloride if the initial concentration of Co(NH3)5Cl3 is 0.1 M and the reaction takes place at 25°C.

asked Feb 3 in Chemical thermodynamics by JonahFrederi (491 points)

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What is the effect of changing the polarity of the solvent on the intermolecular interactions of a solute in solution? Use quantum chemical calculations to study the solvation effects of different solvents on a model solute and determine how changes in solvent polarity affect the solute's energy, geometry, and electronic structure.

asked Feb 3 in Quantum Chemistry by GuyHnw491160 (450 points)

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How does changing the concentration of reactants affect the reaction rate and ultimately the profitability of a chemical reaction in the manufacturing of a particular product?

asked Feb 3 in Chemical kinetics by PetraMeece01 (390 points)

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How does changing the stoichiometry of reactants in a chemical reaction affect the rate of reaction, and how can we experimentally investigate this relationship?

asked Feb 3 in Chemical kinetics by MercedesLind (350 points)

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Calculate the reaction quotient (Qc) for the chemical equation:2NO(g) + O2(g) ⇌ 2NO2(g)At a certain reaction conditions, the concentrations of NO, O2, and NO2 are 0.45 M, 0.25 M, and 0.60 M respectively. Determine if the reaction is at equilibrium and, if not, in which direction will it proceed to reach equilibrium.

asked Feb 3 in Chemical thermodynamics by EdwardVmg820 (330 points)

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1 answer 33 views

How does changing the stoichiometric ratio of reactants affect the reaction rate of the chemical reaction between acid and calcium carbonate?

asked Feb 3 in Chemical kinetics by ChristinaSim (350 points)

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How does changing the pH affect the equilibrium position of a redox reaction involving a weak acid and its conjugate base? Provide a specific example to illustrate your answer.

asked Feb 3 in Chemical equilibrium by JuliannRimme (390 points)

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How does changing the electronic and magnetic properties of molecular magnets affect their potential applications in fields such as data storage and spintronics?

asked Feb 3 in Quantum Chemistry by RogelioHaly (310 points)

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