Question: H2 evolution reaction on Pt electrode in an acidic solution of pH=0 exhibits an exchange current of 0.8 mA/cm2 with a symmetric factor of 0.5.

H2 evolution reaction on Pt electrode in an acidic solution of

H2 evolution reaction on Pt electrode in an acidic solution of pH=0 exhibits an exchange current of 0.8 mA/cm2 with a symmetric factor of 0.5. If the electrode area was 5 cm?, what would be the current for this reaction at -0.12 V vs. NHE. Assume the reaction rate is determined by 1 electron-involving step of the reaction and the effect of mass transport can be ignored./

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