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What is the effect of changing the concentration of ligands on the formation of a complex ion of copper sulfate? Calculate the concentration of the complex ion [Cu(NH3)4(H2O)]2+ when 50 mL of a 0.1 M solution of ammonia is added to 50 mL of a 0.1 M solution of copper sulfate. The formation constant for the complex ion is 1.1 x 10^12.

asked 5 days ago in Chemical equilibrium by RockyPena42 (410 points)

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How will changing the pH affect the formation of a complex ion between Fe³⁺ and CN⁻ in a solution containing both species at equilibrium? Provide a theoretical explanation supported by relevant chemical equations and calculations.

asked 5 days ago in Chemical equilibrium by ZVSLourdes7 (590 points)

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How does changing the length of the hydrocarbon chain in a surfactant affect its ability to reduce surface tension?

asked 5 days ago in Surface Chemistry by LidaOsulliva (490 points)

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What is the effect of changing the stoichiometric ratio of two reactants on the rate of a chemical reaction?

asked 5 days ago in Chemical kinetics by MeaganLehman (490 points)

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Calculate the standard cell potential for the following electrochemical reaction: Zn (s) + 2 Ag+ (aq) → Zn2+ (aq) + 2 Ag (s)Given: Standard Reduction Potentials are E°Zn2+ = -0.76 V, E°Ag+ = 0.80 V.

asked 5 days ago in ElectroChemistry by MerissaLinvi (450 points)

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How does changing the reaction mechanism affect the rate of the chemical reaction and what factors contribute to the changes in the reaction rate?

asked 5 days ago in Chemical kinetics by AlfredoHuber (370 points)

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How does changing the pH of a redox reaction involving Fe3+ and Fe2+ affect the equilibrium position of the reaction, and how can this be predicted using the Nernst equation?

asked 5 days ago in Chemical equilibrium by DannyHankins (410 points)

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1 answer 31 views

How does changing the pH of a redox reaction involving copper and zinc affect the equilibrium position and which ion, Cu2+ or Zn2+, is favored?

asked 5 days ago in Chemical equilibrium by KlausVassall (330 points)

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1 answer 33 views

How does changing the concentration of reactants affect the selectivity of a chemical reaction with multiple possible products?

asked 5 days ago in Chemical kinetics by ReaganWoolls (850 points)

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Calculate the standard enthalpy change for the phase transition reaction of solid carbon dioxide (dry ice) at -78.5°C to gaseous carbon dioxide at 1 atm and 25°C, given the following information: The standard enthalpy of fusion of solid carbon dioxide is 8.4 kJ/mol and the standard enthalpy of vaporization of gaseous carbon dioxide is 22.1 kJ/mol.

asked 5 days ago in Chemical thermodynamics by MilanKight97 (690 points)

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1 answer 18 views

Calculate the standard enthalpy change for the reaction of cobalt(II) chloride hexahydrate with sodium carbonate to form cobalt(II) carbonate and sodium chloride according to the following balanced equation:CoCl2•6H2O + Na2CO3 → CoCO3 + 2 NaCl + 6 H2OGiven:- The enthalpy of hydration of cobalt(II) chloride is -787 kJ/mol.- The enthalpy of formation of sodium chloride is -411 kJ/mol.- The enthalpy of formation of cobalt(II) carbonate is -718 kJ/mol.- The enthalpy of formation of sodium carbonate is -1130 kJ/mol.

asked 5 days ago in Chemical thermodynamics by HallieBuzaco (350 points)

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Calculate the standard enthalpy change for the phase transition of solid copper to liquid copper given the following data: - the melting point of copper is 1,085°C - the molar heat of fusion of copper is 13.1 kJ/mol.

asked 5 days ago in Chemical thermodynamics by SadieTaft39 (610 points)

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How does changing the reactant concentrations affect the reaction rate and ultimately the profitability of a chemical reaction?

asked 5 days ago in Chemical kinetics by WinifredCalk (410 points)

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1 answer 17 views

Calculate the standard enthalpy change of formation for the compound methane (CH4) given the following information:- The standard enthalpy change of formation for carbon dioxide (CO2) is -393.5 kJ/mol.- The standard enthalpy change of formation for water (H2O) is -285.8 kJ/mol.- The enthalpy of combustion for methane is -890.4 kJ/mol.

asked 5 days ago in Chemical thermodynamics by FredricPalum (550 points)

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What is the effect of changing the ratio of reactants on the rate of a chemical reaction? Specifically, which reactant(s) have the greatest impact on the reaction rate when its ratio is altered, and how does this impact vary based on the overall stoichiometry of the reaction? Provide experimental evidence to support your conclusions.

asked 5 days ago in Chemical kinetics by Valeria6199 (570 points)

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1 answer 26 views

Calculate the overpotential (in millivolts) for the reduction of Cu2+ to Cu on a copper electrode at 25°C, given that the standard reduction potential of Cu2+ to Cu is +0.34 V and the actual voltage is 0.32 V.

asked 5 days ago in ElectroChemistry by DorethaBeam6 (710 points)

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1 answer 23 views

Calculate the standard electrode potential for the following redox reaction: Zn(s) + Cu^2+(aq) -> Zn^2+(aq) + Cu(s) Given the standard reduction potentials for Zn^2+(aq)/Zn(s) and Cu^2+(aq)/Cu(s) are -0.76 V and +0.34 V, respectively.

asked 5 days ago in Chemical thermodynamics by JermaineHoag (250 points)

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1 answer 30 views

How does changing the pH value of the reactant solution affect the rate of photochemical reactions in the presence of a particular photosensitizer?

asked 5 days ago in PhotoChemistry by ReneeJuergen (490 points)

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1 answer 32 views

What is the effect of changing the concentration of reactants on the reaction rate and profitability of the following reaction: A + B → C?

asked 5 days ago in Chemical kinetics by Alicia705662 (310 points)

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1 answer 30 views

How does changing the pH affect the formation of a complex ion with copper (II) ion and ethylenediamine? Provide a detailed explanation and the associated chemical equations.

asked 5 days ago in Chemical equilibrium by RosalindOste (450 points)

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