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What is the potential of hydrogen …

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What is the potential of hydrogen electrode in contact with a solution whose pH is 10 ?
  • 2 answers

Aryan Choudhary ?? 5 years, 4 months ago

Thnx Meghna ji

Meghna Thapar 5 years, 4 months ago

p H = 10

Using formula [H+] = 10-pH

So [H+]   = 10-10 M

Electrode reaction will be

H+ + e-   → ½ H2

Use the formula

Value of E0 = 0

Ecell = E0    -    0.0591  log[H2]

                          1            [H+]      

Ecell =    -    0.0591  log( 1/10-10)

                       1                

Ecell =     -    0.0591  ( 10)  = -0.591 V

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