Chapter 19, Problem 123AP

Interpretation Introduction

Interpretation:

The yield of ATP synthesized per mole of nitrite oxidized is to be calculated.

Concept introduction:

The standard reduction potential of a galvanic cell can be calculated in terms of the standard reduction potential of the cathode and anode, as the relation mentioned below:

$E_{\text{cell}}^{\text{o}}=E_{\text{cathode}}^{\text{o}}-E_{\text{anode}}^{\text{o}}$

The relation between the cell potential and the free energy change is as follows:

$\Delta \text{G}°\text{=}-\text{n}\text{F}{\text{E}}_{\text{cell}}^{\circ }$

Here, $E_{cell}^{\circ }$ is the standard cell potential, $\Delta G^{\circ }$

is the standard Gibb’s free energy change, $\text{F}$

is the Faraday constant $\left(\text{1F = 96500 J/V }{\text{. mol e}}^{-}\right)$, and $n$ is the transfer of electrons in the half-cell reactions.