8 8 20 Points Silver 1 Has A Reduction Potential Of 0 799 V If The Solubility Product Of Ag2s Is 6 0 X 10 51 Ksp 1 (45.01 KiB) Viewed 71 times
8 8 20 Points Silver 1 Has A Reduction Potential Of 0 799 V If The Solubility Product Of Ag2s Is 6 0 X 10 51 Ksp 2 (22.15 KiB) Viewed 71 times
8. 8. (20 points) Silver (1) has a reduction potential of 0.799 V. If the solubility product of Ag2S is 6.0 x 10-51 (Ksp=[Ag*[S2]) and the pKa H2S is 7.05 and the pKa of HS is 19. Estimate the reduction potential for the following reaction using the data provided above. Assume 25°C (Do not look up the results on the internet. You must show your calculation using the above information). a. Ag2S(s)+H++2e + 2Ag(s)+HS b. Write the appropriate Nernst equation for this half-cell.
c. A Silver/Silver Sulfide electrode is used with calomel reference electrode with a half-cell voltage of 0.244 V. If the high impedance meter reads -443 m V at a pH of 7.2 what is the concentration of H2S, HS and S-2?
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