If the potential of a Zn–H2 cell (like that in Figure ) is 0.45 V at 25 °C when [Zn2+] = 1.0 M and PH2 = 1.0 atm, what isthe pH of the cathode solution? 0.76 VVoltmeterZn- NO, Na*-anode- H2(g)Cathodehalf-cell(standardhydrogen-electrode, SHE)NO3Zn2+NO,AnodeNO,H+half-cellZn(s)Zn2+(aq) + 2 e-2H*(aq) + 2 e → H2(g)

The concentration of H+ in the cathode compartment is to be calculated.

Answered: 0.76 V Voltmeter Zn - NO, Na*- anode -…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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If the potential of a Zn–H2 cell (like that in Figure ) is 0.45 V at 25 °C when [Zn2+] = 1.0 M and P_H2 = 1.0 atm, what is
the pH of the cathode solution?

0.76 V
Voltmeter
Zn
- NO, Na*-
anode
- H2(g)
Cathode
half-cell
(standard
hydrogen
-electrode, SHE)
NO3
Zn2+
NO,
Anode
NO,
H+
half-cell
Zn(s)
Zn2+(aq) + 2 e-
2H*(aq) + 2 e → H2(g)

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