Domanda del libro di testo
Use tabulated electrode potentials to calculate 𝛥𝐺rxn° for each reaction at 25 °C. a. MnO2(s) + 4 H+(aq) + Cu(s)¡Mn2+(aq) + 2 H2O(l) + Cu2+(aq)
Ch.20 - Electrochemistry
Tro6th EditionChemistry: A Molecular ApproachISBN: 9780137832217
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TOC.tableOfContents
- Ch.1 - Matter, Measurement & Problem Solving118
- Ch.2 - Atoms & Elements106
- Ch.3 - Molecules and Compounds131
- Ch.4 - Chemical Reactions and Chemical Quantities56
- Ch.5 - Introduction to Solutions and Aqueous Solutions82
- Ch.6 - Gases114
- Ch.7 - Thermochemistry96
- Ch.8 - The Quantum-Mechanical Model of the Atom60
- Ch.9 - Periodic Properties of the Elements90
- Ch.10 - Chemical Bonding I: The Lewis Model89
- Ch.11 - Chemical Bonding II: Molecular Shapes, VSEPR & MO Theory85
- Ch.12 - Liquids, Solids & Intermolecular Forces51
- Ch.13 - Solids & Modern Materials47
- Ch.14 - Solutions90
- Ch.15 - Chemical Kinetics115
- Ch.16 - Chemical Equilibrium68
- Ch.17 - Acids and Bases136
- Ch.18 - Aqueous Ionic Equilibrium153
- Ch.19 - Free Energy & Thermodynamics93
- Ch.20 - Electrochemistry106
- Ch.21 - Radioactivity & Nuclear Chemistry74
- Ch.22 - Organic Chemistry140
Tro6th EditionChemistry: A Molecular ApproachISBN: 9780137832217Non è quello che usi tu?Cambia libro di testo
Capitolo 20, Problema 67
Which metal cation is the best oxidizing agent? a. Zn2+ b. Sn2+ c. Cd2+ d. Ni2+
Guida verificata passo dopo passo1
Identify the concept of oxidizing agents: An oxidizing agent is a substance that gains electrons in a redox reaction and is reduced.
Understand that the strength of an oxidizing agent is related to its standard reduction potential. The higher the reduction potential, the better the oxidizing agent.
Look up the standard reduction potentials for each metal cation: Zn^{2+}, Sn^{2+}, Cd^{2+}, and Ni^{2+}.
Compare the standard reduction potentials of the given cations. The cation with the highest standard reduction potential is the best oxidizing agent.
Select the cation with the highest standard reduction potential as the best oxidizing agent.
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Oxidizing Agents
An oxidizing agent is a substance that gains electrons in a chemical reaction, causing another substance to be oxidized. The strength of an oxidizing agent is often determined by its reduction potential; the higher the reduction potential, the stronger the oxidizing agent. In this context, we need to compare the reduction potentials of the given metal cations to identify which one is the best oxidizing agent.
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01:01
Oxidizing and Reducing Agents
Reduction Potential
Reduction potential is a measure of the tendency of a chemical species to acquire electrons and be reduced. It is typically expressed in volts and can be found in standard reduction potential tables. A more positive reduction potential indicates a greater ability to act as an oxidizing agent. Understanding these values is crucial for determining which cation is the strongest oxidizer among the options provided.
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01:10Standard Reduction Potentials
Metal Cations and Their Properties
Metal cations, such as Zn2+, Sn2+, Cd2+, and Ni2+, have distinct chemical properties that influence their behavior in redox reactions. The position of these metals in the electrochemical series affects their reduction potentials. By analyzing their properties and comparing their standard reduction potentials, we can ascertain which cation is most effective at accepting electrons, thus identifying the best oxidizing agent.
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02:05Metal Properties
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Use tabulated electrode potentials to calculate 𝛥𝐺rxn° for each reaction at 25 °C. c. Br2(l) + 2Cl–(aq) → 2 Br–(aq) + Cl2(g)
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