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Question
Mention difficulties in settings Standard Hydrogen Electrode.
Solution
- It is difficult to obtain pure and dry hydrogen gas.
- The pressure of hydrogen gas cannot be maintained exactly at 1 atm throughout the measurement.
- It is also difficult to maintain the concentration of H+ ion solution at exactly 1 M. The bubbling of H2 gas into the solution results in the evaporation of water which changes the concentration of the solution.
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