What would the potential of a standard hydrogen electrode (s. h. e. ) be under the given conditions? [h ]=0. 84 mh2=2. 2 atm=298

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1 answer:

Aneli [31] · Answer 1 · 2023-10-30T01:54:17+03:00

The potential of a standard hydrogen electrode (s. h. e. ) be under the given conditions is - 0.029 V

Calculation ,

Formula used :

$E_{cell}$ = $E_{cell}$ ° - 0.059/n ㏒ $H_{2}$ / $[H^{+}]^{2}$

As we know that ,

[ $H^{+}$ ] = 0. 84 M

$P_{H_{2}$ = 2. 2 atm

Temperature ( T ) = 298 K

From reaction at electrode number of electrons involve ( n ) = 1

Standard electrode potential of standard hydrogen electrode $E_{cell}$ ° = 0

Putting the value of all data in equation ( i ) , we get

$E_{cell}$ = 0 - 0.059/1 ㏒2. 2 / $(0. 84)^{2}$ = - 0.059 ㏒3.14 = - 0.059×0.497

$E_{cell}$ = - 0.029 V

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