Using the following data, calculate the standard standard cell potential for an cell based on the reaction below, and tell whether the reaction is electrochemical spontaneous. Cr (s) + 3Fe³+ (aq) Half-reaction Cr3+ (aq) + 3e¯ → Cr (s) Fe2+ (aq) + 2e →→ Fe (s) - 3Fe2+ (aq) + Cr3+ (aq) Fe³+ (aq) + e → Fe²+ (s) Sn4+ (aq) + 2e Sn²+ (aq) 2+ (A) -1.45 V, spontaneous (B) -1.51 V not spontaneous (C) 2.99 spontaneous (D) +1.51 spontaneous E° (V) -0.74 -0.440 +0.771 +0.154

Using the following data, calculate the standard standard cell potential for an cell based on the reaction below, and tell whether the reaction is electrochemical spontaneous. Cr (s) + 3Fe³+ (aq) Half-reaction Cr3+ (aq) + 3e¯ → Cr (s) Fe2+ (aq) + 2e →→ Fe (s) - 3Fe2+ (aq) + Cr3+ (aq) Fe³+ (aq) + e → Fe²+ (s) Sn4+ (aq) + 2e Sn²+ (aq) 2+ (A) -1.45 V, spontaneous (B) -1.51 V not spontaneous (C) 2.99 spontaneous (D) +1.51 spontaneous E° (V) -0.74 -0.440 +0.771 +0.154

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter18: Electrochemistry

Section: Chapter Questions

Problem 18.44QE: For each of the reactions, calculate E from the table of standard potentials, and state whether the...

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