Answer to Question #246227 in General Chemistry for someone

Question

Use the Nernst equation to adjust this potential for oxygen having a partial pressure of 0.2 bar, which is about its concentration in air.

Answer 1

2H₂ + O₂ $\to$ 2H₂O

E^o = 1.23 V

E= E^o = (- 0.0592/2)log₁₀ [1/2]

E= 1.23-( 0.0296 × 0.69897)

= 1.23 - 0.02

= 1.21 V