At what pH of HCl solution, will hydrogen gas electrode show electrode potential of -0.118 V ? `H_(2)` gas is bubbled at 298 K and 1 atm pressure.

At what pH of HCl solution, will hydrogen gas electrode show electrode

1.	At what pH of HCl solution, will hydrogen gas electrode show electrode potential of -0.118 V ? `H_(2)` gas is bubbled at 298 K and 1 atm pressure.
Answer» Correct Answer - pH=2 `H^(+)+e^(-) to 1//2H_(2)` `E_(cell)=E_(cell)^(@)-(0.0591)/(1)"log"(1)/([H^(+)])` `-0.188=0-0.0591 " pH" " "(because pH="log "1//[H^(+)])` `pH=(0.118)/(0.0591)=2`.

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At what pH of HCl solution, will hydrogen gas electrode show electrode potential of -0.118 V ? `H_(2)` gas is bubbled at 298 K and 1 atm pressure.

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