Reaction

logK

pe (pH5)

pe (pH7)

$\frac{1}{2}{\text{N}}_2\text{O}+{\text{e}}^{-}+{\text{H}}^{+}=\frac{1}{2}{\text{N}}_2+\frac{1}{2}{\text{H}}_{\text{2}}\text{O}$

29.8

22.9

20.9

$\text{NO}+{\text{e}}^{-}+{\text{H}}^{+}=\frac{1}{2}{\text{N}}_2\text{O}+\frac{1}{2}{\text{H}}_{\text{2}}\text{O}$

26.8

19.8

17.8

$\frac{1}{2}{\text{NO}}_2^{-}+{\text{e}}^{-}+\frac{3}{2}{\text{H}}^{+}=\frac{1}{4}{\text{N}}_2\text{O}+\frac{3}{4}{\text{H}}_{\text{2}}\text{O}$

23.6

15.1

12.1

$\frac{1}{5}{\text{NO}}_3^{-}+{\text{e}}^{-}+\frac{6}{5}{\text{H}}^{+}=\frac{1}{10}{\text{N}}_2+\frac{3}{5}{\text{H}}_{\text{2}}\text{O}$

21.1

14.3

11.9

${\text{NO}}_2^{-}+{\text{e}}^{-}+2{\text{H}}^{+}=\text{NO}+{\text{H}}_{\text{2}}\text{O}$

19.8

9.8

5.8

$\frac{1}{4}{\text{NO}}_3^{-}+{\text{e}}^{-}+\frac{5}{4}{\text{H}}^{+}=\frac{1}{8}{\text{N}}_2\text{O}+\frac{5}{8}{\text{H}}_{\text{2}}\text{O}$

18.9

12.1

9.6

$\frac{1}{2}{\text{NO}}_3^{-}+{\text{e}}^{-}+{\text{H}}^{+}=\frac{1}{2}{\text{NO}}_2^{-}+\frac{1}{2}{\text{H}}_{\text{2}}\text{O}$

14.1

9.1

7.1

$\frac{1}{4}{\text{O}}_2+{\text{e}}^{-}+{\text{H}}^{+}=\frac{1}{2}{\text{H}}_{\text{2}}\text{O}$

20.8

15.6

13.6

${\text{e}}^{-}+{\text{H}}^{+}=\frac{1}{2}{\text{H}}_{\text{2}}$

0

−5

−7

$\frac{1}{12}{\text{C}}_6{\text{H}}_{12}{\text{O}}_6+{\text{e}}^{-}+{\text{H}}^{+}=\frac{1}{4}{\text{C}}_{\text{2}}{\text{H}}_{\text{5}}\text{OH}+\frac{1}{4}{\text{H}}_{\text{2}}\text{O}$

4.4

0.1

−1.9