The following cell was set up to measure the standard reduction potential of the Ag+ | Ag couple:
Pt(s) Æ’ HCl(0.010 00 M), H2(g) || AgNO3 (0.010 00 M) Æ’ Ag(s)
The temperature was 25oC (the standard condition) and atmospheric pressure was 751.0 Torr. Because the vapor pressure water is 23.8 Torr at 25°C, in the cell was 751.0 - 23.8 727.2 Torr. The Nernst equation for the cell, including activity coefficients, derived as follows:

Given a measured cell voltage of + 0.798 3 V and using activity coefficients from Table 7-1, find.EoAg +|Ag Be sure to express PH2 in bar in the reaction quotient.

Transcribed Image Text:

Right electrode: Ag eAg(s) Left electrode: H +e H2(g) Agi Ag 0.059 16 loIAg YAg pl2 H2 1/2 E -00.059 16 log_ E-E+ _ E--Eag.IAgー0 A 0.059 16 log