Domanda del libro di testo
For the following half-reaction, E° = 1.103 V: Calculate the formation constant Kf for Cu(CN)2-.
502
views
Ch.19 - Electrochemistry
McMurry8th EditionChemistryISBN: 9781292336145
Non è quello che usi tu?Cambia libro di testoScegli un libro di testo diverso
TOC.tableOfContents
- Ch.1 - Chemical Tools: Experimentation & Measurement170
- Ch.2 - Atoms, Molecules & Ions160
- Ch.3 - Mass Relationships in Chemical Reactions169
- Ch.4 - Reactions in Aqueous Solution199
- Ch.5 - Periodicity & Electronic Structure of Atoms102
- Ch.6 - Ionic Compounds: Periodic Trends and Bonding Theory92
- Ch.7 - Covalent Bonding and Electron-Dot Structures61
- Ch.8 - Covalent Compounds: Bonding Theories and Molecular Structure59
- Ch.9 - Thermochemistry: Chemical Energy122
- Ch.10 - Gases: Their Properties & Behavior155
- Ch.11 - Liquids & Phase Changes54
- Ch.12 - Solids and Solid-State Materials73
- Ch.13 - Solutions & Their Properties120
- Ch.14 - Chemical Kinetics98
- Ch.15 - Chemical Equilibrium125
- Ch.16 - Aqueous Equilibria: Acids & Bases110
- Ch.17 - Applications of Aqueous Equilibria147
- Ch.18 - Thermodynamics: Entropy, Free Energy & Equilibrium86
- Ch.19 - Electrochemistry154
- Ch.20 - Nuclear Chemistry96
- Ch.21 - Transition Elements and Coordination Chemistry156
- Ch.22 - The Main Group Elements187
- Ch.23 - Organic and Biological Chemistry51
Capitolo 19, Problema 118
Write a balanced equation for the overall cell reaction when a lead storage battery is being charged. Refer to Section 19.10.
Guida verificata passo dopo passo1
Identify the half-reactions involved in the lead storage battery during charging. The lead storage battery consists of a lead dioxide (PbO2) cathode and a lead (Pb) anode, with sulfuric acid (H2SO4) as the electrolyte.
Write the oxidation half-reaction. During charging, lead sulfate (PbSO4) at the anode is converted back to lead (Pb) and sulfate ions (SO4^{2-}). The half-reaction is: \[ \text{PbSO}_4 (s) + 2e^- \rightarrow \text{Pb} (s) + \text{SO}_4^{2-} (aq) \]
Write the reduction half-reaction. At the cathode, lead sulfate (PbSO4) is converted back to lead dioxide (PbO2), water (H2O), and sulfate ions (SO4^{2-}). The half-reaction is: \[ \text{PbSO}_4 (s) + 2H_2O (l) \rightarrow \text{PbO}_2 (s) + 4H^+ (aq) + 2e^- + \text{SO}_4^{2-} (aq) \]
Combine the two half-reactions to form the overall balanced equation. Ensure that the electrons are balanced and cancel out in the overall reaction.
Simplify the equation by combining like terms and ensuring that all atoms and charges are balanced. The final balanced equation represents the overall cell reaction during the charging of a lead storage battery.
Risposta video verificata per un problema simile:
Questa soluzione video è stata consigliata dai nostri tutor come utile per risolvere questo problema.
Durata del video:
1mConcetti chiave
Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.
Redox Reactions
Redox reactions involve the transfer of electrons between two species, resulting in oxidation (loss of electrons) and reduction (gain of electrons). In the context of a lead storage battery, the charging process is a redox reaction where lead sulfate is converted back to lead and lead dioxide, restoring the battery's charge.
Video consigliato:
Percorso guidato
03:12
Identifying Redox Reactions
Electrochemical Cells
Electrochemical cells convert chemical energy into electrical energy through redox reactions. In a lead storage battery, the cell consists of two electrodes (lead and lead dioxide) immersed in an electrolyte solution. Understanding the structure and function of these cells is crucial for writing balanced equations for their reactions.
Video consigliato:
Percorso guidato
02:46Electrochemical Cells
Balancing Chemical Equations
Balancing chemical equations ensures that the number of atoms for each element is the same on both sides of the equation, adhering to the law of conservation of mass. This process involves adjusting coefficients to achieve balance, which is essential when writing the overall cell reaction for the charging of a lead storage battery.
Video consigliato:
Percorso guidato
01:32Balancing Chemical Equations
Pratica correlata
Domanda del libro di testo
You are on your dream vacation at the beach when a major storm knocks out the power for days. Your cell phone is dead, and you want to make a battery to charge it. You find the following materials in the beach house. blue stone algaecide for pools, which can be used to make a 1.0 M Cu2+ solution alum in the kitchen, which can be used to make a 1.0 M Al3+ solution aluminum foil, copper wire, and bologna, which can be used as a salt bridge. (d) An iPhone requires 5.0 V for charging. Can this battery charge the phone? Explain.
310
views
Domanda del libro di testo
You are on your dream vacation at the beach when a major storm knocks out the power for days. Your cell phone is dead, and you want to make a battery to charge it. You find the following materials in the beach house. blue stone algaecide for pools, which can be used to make a 1.0 M Cu2+ solution alum in the kitchen, which can be used to make a 1.0 M Al3+ solution aluminum foil, copper wire, and bologna, which can be used as a salt bridge. (b) What voltage can be generated?
363
views
Domanda del libro di testo
The following galvanic cell has a potential of 1.214 V at 25 °C: Calculate the value of Ksp for Hg2Br2 at 25°C
877
views