The equilibrium constant for the reaction is at 298 K. The magnitude of standard electrode potential of if is . (Nearest integer)

Given:

Question

The equilibrium constant for the reaction  is  at 298 K. The magnitude of standard electrode potential of  if  is . (Nearest integer)

Given:

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Strategy:
 Relate the equilibrium constant () to the standard cell potential () and then use the definition  to find the missing electrode potential.

Step 1: Calculate 
The reaction is , where .

Step 2: Find 
In this cell, Zinc is the anode and Tin is the cathode.

Step 3: Magnitude
The magnitude is .

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