Calculate R.P. of hydrogen electrode at 298 K which is prepared with the help of aq. Solution of acetic acid with 0.1 M conc at 1 atm pressure `Ka=1.8xx10^(-5)`

Explanation

`[H^(+)]=sqrt(Kaxxc)=sqrt(1.8xx10^(-5)xx10^(-1))=sqrt(1.8xx10^(-6))`
`2H^(+)+2e^(-)toH_(2)`
`E_(red^(n))=E_(red)^(0)-(0.059)/(2)log(P_(H_(2)))/([H^(+)]^(2))" "(E_(red^(n))^(0)=0)`
`E_(Red^(n))=-(0.059)/(2)log((1)/(1.8xx10^(-6)))=-(0.059)/(2)[6-log(1.8)]`
`E_(Red^(n))=-(0.059)/(2)xx5.74=-0.169V`