I just finished an EK test and I'm wondering one thing. The passage involved a concentration cell that is used as a pH meter.
They have two half-reactions
H2 + 2H2O --> 2H3O+ + 2e-
2H3O+ + 2e- --> H2 + 2H2O
The equilibrium equation is:
[H3O+]^2
_________
[H3O+]^2
I'm wondering why H2 isn't involved. Usually, aren't gases included in the equilibrium?
Thank you
They have two half-reactions
H2 + 2H2O --> 2H3O+ + 2e-
2H3O+ + 2e- --> H2 + 2H2O
The equilibrium equation is:
[H3O+]^2
_________
[H3O+]^2
I'm wondering why H2 isn't involved. Usually, aren't gases included in the equilibrium?
Thank you