NCERT Class XII Chemistry
Chapter - Electrochemistry
Questions with Solutions

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Question : 22
Total: 32
Calculate the potential of hydrogen electrode in contact with a solution whose pH is 10.
Solution:  
For hydrogen electrode, H++e
1
2
H2

From Nernst equation,
E H+H2=E°H+H2
0.0591
n
log
1
[ H+]

=0
0.0591
1
log
1
1010

=0.0591×10=0.591V
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