Ag⁺ + E^- ? Ag(s) E° = 0

question 9

Short Answer

Ag⁺ + e^- ? Ag(s) E° = 0.80 V
Cu²⁺ + 2e^- ? Cu(s) E° = 0.34 V
In a galvanic cell, the silver compartment contains a silver electrode and excess AgCl(s) (K_sp = 1.6 × 10^-10). The copper compartment contains a copper electrode, and [Cu²⁺] = 2.0 M.

A. Calculate the potential for this cell at 25°C.
B. Assuming 1.0 L of 2.0 M Cu²⁺ in the copper compartment, calculate how many moles of NH₃ would have to be added to establish the cell potential at 0.52 V at 25°C (assume no volume change on addition of NH₃).
Cu²⁺ + 4NH₃ Cu(NH₃)₄S1U112+ K_f = 1.0 ×10¹³

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