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Given a certain electrochemical reaction, the anodic and cathodic Tafel slopes were found to be 60 mV/decade and 100 mV/decade, respectively. Calculate the exchange current density of the reaction.

asked Feb 4 in ElectroChemistry by Francisca504 (1.9k points)

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For the reaction below, calculate the equilibrium constant (K) when the electrode potentials are E°(Cu2+/Cu) = +0.34 V and E°(Ag+/Ag) = +0.80 V:Cu(s) + 2Ag+(aq) → Cu2+(aq) + 2Ag(s)

asked Feb 4 in ElectroChemistry by HalinaAlderm (1.9k points)

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For the electrochemical reaction + ↔ + , the cell potential is 0.60 V at 25°C. If the standard reduction potential of 2+ is 0.34 V and that of 2+ is -0.74 V, calculate the equilibrium constant () for the reaction at 25°C.

asked Feb 4 in ElectroChemistry by TracieM73151 (2.5k points)

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For a student studying surface chemistry and the adsorption of gases on solid surfaces, a precise problem could be: What is the effect of temperature on the adsorption of nitrogen gas on activated charcoal and how does it change the isotherm?

asked Feb 4 in Surface Chemistry by CharmainHers (1.6k points)

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For a given organic molecule with a Lewis structure, what is the frequency of infrared radiation that would induce the greatest change in the dipole moment of the molecule?

asked Feb 4 in Quantum Chemistry by AllanKew2295 (2.0k points)

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Find the standard enthalpy change for the reaction: 2C2H5OH(l) + 9O2(g) --> 6CO2(g) + 8H2O(l) given the following information: Standard enthalpy of formation (ΔHfº) of C2H5OH(l) = -277 kJ/mol Standard enthalpy of formation (ΔHfº) of CO2(g) = -393.5 kJ/mol Standard enthalpy of formation (ΔHfº) of H2O(l) = -285.8 kJ/mol Assume that the reaction occurs at standard conditions.

asked Feb 4 in Chemical thermodynamics by Aimee8754791 (2.0k points)

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Find the standard enthalpy change for the formation reaction of methane gas (CH4) from its elements in their standard states, given the following standard enthalpy of formation values: ΔHf°[CH4] = -74.81 kJ/mol ΔHf°[H2] = 0 kJ/mol ΔHf°[C(graphite)] = 0 kJ/mol

asked Feb 4 in Chemical thermodynamics by BeverlyNavar (1.8k points)

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Find the oxidation state of chromium in the compound K2Cr2O7.

asked Feb 4 in Chemical reactions by AleciaAlleyn (1.5k points)

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Explore the relationship between the coordination number and the geometry of transition metal complexes, citing specific examples from the literature.

asked Feb 4 in Coordination Chemistry by WyattBriones (1.9k points)

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Explain why some molecules with polar bonds are nonpolar in nature and provide a few examples.

asked Feb 4 in Chemical education by KatieManzi6 (1.6k points)

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Explain the role of ion channels in signal transduction pathways and provide an example of a specific ion channel and its function in cellular signaling.

asked Feb 4 in BioChemistry by Jaqueline50I (2.0k points)

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Explain the mechanism of chelation therapy with reference to coordination chemistry principles and discuss the effectiveness of EDTA as a chelating agent in the treatment of heavy metal poisoning.

asked Feb 4 in Coordination Chemistry by KianCavill6 (1.6k points)

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Explain the factors affecting the stability of colloidal dispersion and the phenomenon of coagulation with suitable examples.

asked Feb 4 in Surface Chemistry by SarahWeston5 (2.0k points)

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Explain the differences in the photochemical properties of transition metal complexes based on their ligand environments.

asked Feb 4 in PhotoChemistry by RaulGalway75 (2.1k points)

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Explain how the glass transition temperature of a polymer is influenced by its molecular weight and degree of branching.

asked Feb 4 in Physical Chemistry by MyrnaFaerber (1.8k points)

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Does the rate of a photochemical reaction increase linearly with the increase in light intensity, or is there a maximum intensity beyond which no further increase in the rate is observed? Provide experimental evidence to support your answer.

asked Feb 4 in PhotoChemistry by PalmaYuille (2.1k points)

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Does the concentration of reactants in a chemical reaction affect the reaction yield, and if so, what is the relationship between the two variables?

asked Feb 4 in Chemical kinetics by Dylan31U6281 (2.0k points)

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Does surface modification of a polymer affect its stability and adhesion properties when used in biomedical applications?

asked Feb 4 in Surface Chemistry by ThedaP243851 (2.4k points)

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Does changing the concentration of reactants affect the reaction rate and ultimately, the profitability of the reaction in the synthesis of a particular chemical compound? If so, what is the optimal concentration of reactants that maximizes both the reaction rate and profitability?

asked Feb 4 in Chemical kinetics by ErikGendron8 (1.4k points)

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Dinitrogen tetroxide converts into nitrogen dioxide according to the following equation N2O4(g) ⇋ 2NO2(g). At equilibrium, the concentration of N2O4 is found to be 0.02 M and the concentration of NO2 is found to be 0.08 M. Calculate the equilibrium constant (Kc) for this reaction.

asked Feb 4 in Chemical equilibrium by GingerJ92570 (1.6k points)

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