
Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Question

Transcribed Image Text:### Redox Reactions
To understand and analyze redox reactions, follow these steps:
1. For each of the following redox reactions:
i. Write the oxidation half reaction
ii. Write the reduction half reaction
iii. Determine the E°cell at 25°C
iv. Using the E°cell, determine the Gibbs Free Energy in kJ/mol
v. Based on the E°cell and Gibbs Free Energy, determine whether the reaction is spontaneous or nonspontaneous.
#### Reactions:
a. \( 2Fe^{3+}(aq) + I^{-}(aq) \rightarrow 2Fe^{2+}(aq) + I_2(s) \)
b. \( Cr_2O_7^{2-}(aq) + 6Fe^{2+}(aq) + 14H^{+}(aq) \rightarrow 2Cr^{3+}(aq) + 6Fe^{3+}(aq) + 7H_2O(l) \)
Expert Solution

This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by stepSolved in 2 steps

Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Similar questions
- Consider the following half reaction: Na*(aq) + e → Na(s). For this reaction, E°(red) = -2.7 V. If this reaction is tripled so that 3 Na* ions are reduced to 3 Na atoms, what is the new E° (red)? | v 1 3 4 6 C 7 8 +/- х 100 2. LOarrow_forwardWhat is the overall cell reaction for the following voltaic cell? Ni (s) | Ni2* (aq) || Fe (aq) | Fe (s) O A. Ni (s) + Fe (aq) Ni2+ (aq)+ Fe (s) B. Ni2+ (aq) (aq) + Fe (s) – Ni (s) + Fe3+ O C. Ni (s) + Fe (s) → Ni?+ (aq) + Fest (aq) O D. 3 Ni (s) + 2 Fe+ - 3 Ni2* (aq) +2 Fe (s) O E. 3 NiT (aq) +2 Fe (s) → 3 Ni (s) + 2 Fe3+, (aq)arrow_forward14. Calculate the equilibrium constant K, for the following balanced redox reaction at 25oC. (R = 8.31 J/mol.K). Pb2+(aq) + 2Ag(s) → Pb(s) + Ag+(aq) given the following standard redox potentials: Pb2+(aq) + 2e- ⟶⟶ Pb(s) E0 = -0.13 V Ag+(aq) + e-⟶⟶ Ag(s) E0 = 0.80 V A. 72.47 B. 3 x 1031 C. 0.93 D. 4.9 x 1011 E. 3 x 10-32arrow_forward
- 74. A voltaic cell employs the redox reaction: Sn²+(aq) + Pb(s) Sn(s) + Pb2+(aq) E° cell = 0.010 V Calculate the cell potential, Ecell, at 25°C under each set of conditions. a. [Pb2+] = 0.010 M; [Sn²+] = 0.010 M b. [Pb2+] c. [Pb2+] = = 1.0 × 10 6 M; [Sn²+] = 2.0 M 1.5 M; [Sn2] = 0.010 Marrow_forward17. Which reaction will not occur as suggested? Al (s) + SnCh(aq)AIC13(aq) + Sn(s) b. H2(g)+ AGNO3(aq) → HNO3(aq) + Ag(s) Mg(s) + CUSO4(aq) Cu(s) + MgSO4(aq) d. Mg(s)+ CaSO4(aq)MgSO4(aq) + Ca(s) Ba (s) + HCl(aq) BaCl2(aq) + H2(g) а. с. -> -> e. ->arrow_forward11. What is AG° for the reaction driving the following voltaic cell? Co (s) | Co²+ (aq) || Mn³+ (aq), Mn²+ (aq) | Pt (s) A. -175 kJ +175 kJ B. -351 kJ +351 kJ C. -527 kJ D. E.arrow_forward
- Calculate the standard reaction free energy (AGº) for the following unbalanced redox reaction in acidic conditions. (HINT: You need to balance) NO(g) + Cu²+ (aq) → HNO₂(aq) + Cu+ (aq) The potential for the oxidation of NO (g) to HNO₂ (aq) is -0.983 V. The potential for the reduction of Cu²+ (aq) to Cu* (aq) is 0.153 V. The standard cell potential (Eºcell) for the reaction above is [Select ] V. There are [Select] The standard reaction free energy (AGO) for this redox reaction is [Select] kJ. This redox reaction [Select] at 25°C. of electrons transferred during this reaction.arrow_forward11. Consider the following reaction and its AG-AG• at 25.00 °C. 12 Coeside 2Ag*(aq)+Cu(s) 2Ag(s)+Cu*(aq) AG =-88660 J/mol a. Calculate the standard cell potential, Ecellº, for the reaction. b. Calculate the equilibrium constant, K, for the reaction. Wtoxided what is reduced? CLEAREYarrow_forwardCalculate the K and AG for the following reaction at 25 °C: Mg(s) + Pb2+(aq)=Mg2+(aq) + Pb (s) Note: Reference the Standard reduction potentials at 25 °C and Fundamental constants tables for additional information. Part 1 of 2 Round your answer to 3 significant digits. Кс Part 2 of 2 G Round your answer to 4 significant digits. AG° kJ molarrow_forward
- Determine if the reaction below is spontaneous.Cl2(g) + 2 F–(aq) ⇌ F2(g) + 2 Cl–(aq)a. Based on the given reaction, write the reduction half-reaction.b. Based on the given reaction, write the oxidation half-reaction.c. By looking at the reduction potential table below, calculate the standard cell potential.arrow_forwardThe standard EMF for the cell using the overall cell reaction below is +0.84 V: 2Al(s) + 312 (s) 2A1³+ (aq) + 61 (aq) What is AGO for the cell reaction in kJ? Express your answer in decimal notation to one decimal place, without units.arrow_forwardH11. Consider the voltaic cell H+ (aq, ?? M) H₂(g, 1 atm)||Cu(s) Cu²+ (aq. 0.1 M). Ecell for this cell at 25 C was +0.360V. What was the pH of the anode solution? A. 0 ABCDE B. C. D. E. 0.89 3.2 7.0 11.7arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistryChemistryISBN:9781259911156Author:Raymond Chang Dr., Jason Overby ProfessorPublisher:McGraw-Hill EducationPrinciples of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning
- Organic ChemistryChemistryISBN:9780078021558Author:Janice Gorzynski Smith Dr.Publisher:McGraw-Hill EducationChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningElementary Principles of Chemical Processes, Bind...ChemistryISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY

Chemistry
Chemistry
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Cengage Learning

Chemistry
Chemistry
ISBN:9781259911156
Author:Raymond Chang Dr., Jason Overby Professor
Publisher:McGraw-Hill Education

Principles of Instrumental Analysis
Chemistry
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Cengage Learning

Organic Chemistry
Chemistry
ISBN:9780078021558
Author:Janice Gorzynski Smith Dr.
Publisher:McGraw-Hill Education

Chemistry: Principles and Reactions
Chemistry
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:Cengage Learning

Elementary Principles of Chemical Processes, Bind...
Chemistry
ISBN:9781118431221
Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:WILEY