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  4. How much will the reduction potential of a hydrogen electrode change when its solution initially at pH =0 is neutralised to pH =7 :

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Q. How much will the reduction potential of a hydrogen electrode change when its solution initially at $pH =0$ is neutralised to $pH =7$ :

Electrochemistry

Solution:

For H-electrode, $R.P =-0.059 \times pH$

$-0.059 \times 7=-0.41 \, V$