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Use the tabulated electrode potentials to calculate K for the oxidation of zinc by H+ (at 25 ∘C): Zn(s)+2H+(aq)→Zn2+(aq)+H2(g) Express your answer using two significant figures.

Use the tabulated electrode potentials to calculate K for the oxidation of zinc by H+ (at 25 ∘C): Zn(s)+2H+(aq)→Zn2+(aq)+H2(g) Express your answer using two significant figures.

General Chemistry - Standalone book (MindTap Course List)
General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Chapter19: Electrochemistry
Section: Chapter Questions
Problem 19.72QP: What is the standard cell potential you would obtain from a cell at 25C using an electrode in which...
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Use the tabulated electrode potentials to calculate K for the oxidation of zinc by H+ (at 25 ∘C):

Zn(s)+2H+(aq)→Zn2+(aq)+H2(g)

Express your answer using two significant figures.
 
Standard reduction half-cell potentials at 25° C E° ( V) E° Half-reaction Half-reaction |(V) Au+ (aq) + 3e→Au(s) 1.50 Fe2+ (aq) + 2e-→Fe(s) 0.45 Ag+ (aq) + e→Ag(s) 0.80 Cr (aq) + e —уCr? (aq) 0.50 Fe+ (aq) + 3e →Fe2+ (aq) 0.77 Cr+ (aq) + 3e→Cr(s) 0.73 Cu" (аq) + е —Cu(s) 0.52 Zn2+ (aq) +2e-→Zn(s) 0.76 Cu?+ (aq) + 2e-→Cu(s) Mn2+ (aq) + 2e →Mn(s) 0.34 1.18 2H*(aq) + 20→H2(g) 0.00 Al+ (aq) + 3e -→Al(s) 1.66 Fe+ (aq) + 3e-→Fe(s) Mg2+ (aq) + 2e–→Mg(s) 2.37 0.036 Pb2+ (aq) + 2e →Pb(s) Na+ (aq) + e¯→Na(s) 0.13 2.71 Sn2+ (aq) + 2e→Sn(s) Ca2+ (aq) + 2e→Ca(s) 0.14 2.76 Ni?+ (aq) + 2e–→Ni(s) Ва2 (аq) + 2е Ba(s) 0.23 2.90 Co2+ (aq) + 2e¯→Co(s) K* (aq) + e→K(s) 0.28 2.92 Cd2+ (aq) + 2e→Cd(s) Lit (aq) + E→L¡(s) 0.40 3.04
Transcribed Image Text:Standard reduction half-cell potentials at 25° C E° ( V) E° Half-reaction Half-reaction |(V) Au+ (aq) + 3e→Au(s) 1.50 Fe2+ (aq) + 2e-→Fe(s) 0.45 Ag+ (aq) + e→Ag(s) 0.80 Cr (aq) + e —уCr? (aq) 0.50 Fe+ (aq) + 3e →Fe2+ (aq) 0.77 Cr+ (aq) + 3e→Cr(s) 0.73 Cu" (аq) + е —Cu(s) 0.52 Zn2+ (aq) +2e-→Zn(s) 0.76 Cu?+ (aq) + 2e-→Cu(s) Mn2+ (aq) + 2e →Mn(s) 0.34 1.18 2H*(aq) + 20→H2(g) 0.00 Al+ (aq) + 3e -→Al(s) 1.66 Fe+ (aq) + 3e-→Fe(s) Mg2+ (aq) + 2e–→Mg(s) 2.37 0.036 Pb2+ (aq) + 2e →Pb(s) Na+ (aq) + e¯→Na(s) 0.13 2.71 Sn2+ (aq) + 2e→Sn(s) Ca2+ (aq) + 2e→Ca(s) 0.14 2.76 Ni?+ (aq) + 2e–→Ni(s) Ва2 (аq) + 2е Ba(s) 0.23 2.90 Co2+ (aq) + 2e¯→Co(s) K* (aq) + e→K(s) 0.28 2.92 Cd2+ (aq) + 2e→Cd(s) Lit (aq) + E→L¡(s) 0.40 3.04
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