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How does changing the reactant concentration affect the rate of reaction in a reaction with a fixed stoichiometry?

asked Feb 3 in Chemical kinetics by JeremyGorsuc (330 points)

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Calculate the standard enthalpy change for the dissolution of 3 mol of potassium chloride (KCl) in 1000 mL of water, given that the molar enthalpy of dissolution is -17.4 kJ/mol.

asked Feb 3 in Chemical thermodynamics by CorinneMcwho (470 points)

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How does changing the concentration of one of the reactants affect the rate and sustainability of the reaction between potassium permanganate and hydrogen peroxide in acidic solution?

asked Feb 3 in Chemical kinetics by JarrodKnorr7 (230 points)

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How does changing the metal center in a complex affect its photochemical properties? Compare the photochemical properties of a series of metal complexes with different metal centers under identical conditions.

asked Feb 3 in PhotoChemistry by LeannaVance (750 points)

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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 Feb 3 in Chemical equilibrium by AlphonsoDown (190 points)

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Calculate the standard enthalpy change for the reaction A(s) + 2B(g) → 3C(l) + D(g) given the following data:• ΔHf° for A(s) is -100 kJ/mol• ΔHf° for C(l) is -50 kJ/mol• ΔS° for the reaction is 450 J/K•mol• ΔS° for D(g) is 200 J/K•mol

asked Feb 3 in Inorganic Chemistry by LillianWirth (710 points)

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Calculate the standard electrode potential for a redox reaction involving the reaction of iron (Fe) with copper (Cu) ions, given the following half-reactions: Fe2+ + 2e- → FeCu2+ + 2e- → Cu (Note: The standard electrode potential values for Cu2+/Cu and Fe2+/Fe half-cells at 25°C are 0.34V and -0.44V, respectively.)

asked Feb 3 in Chemical thermodynamics by Travis25660 (410 points)

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Calculate the standard enthalpy change for the formation of ethylene oxide (C2H4O) given the following reaction:C2H4(g) + 1.5 O2(g) -> C2H4O(g)Given the standard enthalpy of formation of C2H4(g) = 52.5 kJ/mol and that of O2(g) = 0 kJ/mol, determine the standard enthalpy of formation of C2H4O(g).

asked Feb 3 in Chemical thermodynamics by JimmieA41716 (350 points)

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1 answer 32 views

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 Feb 3 in Chemical equilibrium by HJREarl88961 (370 points)

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How does changing the concentration of reactants and products affect the rate of a reversible chemical reaction at equilibrium?

asked Feb 3 in Chemical kinetics by JasmineGonin (490 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 Feb 3 in Chemical thermodynamics by AletheaFiori (490 points)

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How do chaperone proteins facilitate the correct folding of newly synthesized proteins in the cell?

asked Feb 3 in BioChemistry by EthanC574154 (370 points)

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1 answer 18 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 Feb 3 in Chemical thermodynamics by AdrieneBerns (290 points)

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1 answer 24 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 Feb 3 in Chemical thermodynamics by RamonaVun415 (350 points)

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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 Feb 3 in ElectroChemistry by VioletLoflin (370 points)

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

asked Feb 3 in Chemical kinetics by KandiceGalar (230 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 Feb 3 in Surface Chemistry by CheriS107730 (530 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 Feb 3 in Chemical kinetics by NatishaChapl (510 points)

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How does changing the initial orientation of reactant molecules affect the rate of a chemical reaction?

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

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1 answer 26 views

Calculate the power output of a Galvanic cell consisting of a standard hydrogen electrode and a standard copper electrode at 298 K when the concentration of copper ions in the cathode half-cell is 0.1 M and hydrogen gas pressure in the anode half-cell is at 1 bar. The standard reduction potentials for the hydrogen and copper half-reactions are +0.0 V and +0.34 V, respectively.

asked Feb 3 in ElectroChemistry by MargieSelph6 (350 points)

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