The hydrogen electrode is dipped in a solution of at . The potential of the electrode will be .

Round off the answer to the nearest integer.

Question

The hydrogen electrode is dipped in a solution of  at . The potential of the electrode will be .

Round off the answer to the nearest integer.

Canvas Classes · Accepted Answer

Strategy:
 The potential of a hydrogen electrode depends on the concentration of  ions (measured as pH). Use the Nernst Equation for the hydrogen reduction half-cell.

Step 1: Setup the Nernst Equation
Reaction: , .
Assuming  bar:

Step 2: Calculate for pH = 3

Step 3: Format the result

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