The reduction potential for all other half-reactions are measured relative to the half-reaction 2H+(aq)+ 2e− ----> H2​(g) Under standard conditions (pH=0.000, PH2 = 1 atm) this standard hydrogen electrode (SHE) is defined to have a reduction potential of 0.000 V. What is the reduction potential of a hydrogen electrode that is still at standard pressure, but has pH = 5.45 , relative to the SHE

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