why there are two H2 electrode potentials in Electrochemical series
Added by Sarah F.
Step 1
It is used to predict the direction of electron flow in electrochemical cells and to determine the feasibility of redox reactions. Show more…
Show all steps
Your feedback will help us improve your experience
Emily Himsel and 62 other Chemistry 102 educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Why are $E_{\text { half-cell values for the oxidation and reduction of }}$ water different from $E_{\text { half-cell }}^{\circ}$ values for the same processes?
The potential of the standard hydrogen electrode (SHE) is the reference against which other half-reaction potentials are expressed. Why, then, is the SHE not widely used as a reference electrode in electrochemical cells?
A handbook gives the value $E^{\circ}=0.174 \mathrm{V}$ for the reduction half-reaction $\mathrm{S}+2 \mathrm{H}^{+}+2 \mathrm{e}^{-} \longrightarrow$ $\mathrm{H}_{2} \mathrm{S}(\mathrm{g}) .$ In Figure $22-13,$ the value given for the segment $\mathrm{S}-\mathrm{H}_{2} \mathrm{S}(\mathrm{aq})$ is $0.144 \mathrm{V}$. Why are these $E^{\circ}$ values different? Can both be correct?
Recommended Textbooks
Chemistry: Structure and Properties
Chemistry The Central Science
Chemistry
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD