H2O2 + MnO2 + H+ → Mn+2 + O2 + H2O© BrainMass Inc. brainmass.com October 24, 2018, 9:38 pm ad1c9bdddf
First, we have to find the two half-reactions:
MnO2 + 4H+ + 2e- → Mn+2 + 2H2O (E = 1.23 V)
O2 + 2H+ + 2e- → H2O2 (E = 0.682 V)
Of course, the second reaction needs to be switched around. When we do, we ...
Using the electrode potentials in appendix C3 of your text, calculate the voltage for a standard cell using the following reaction.
Calculating delta G and standard cell potential
Consider the oxidation of ammonia:
4NH3 (g) + 3O2(g) --> 2N2 (g) + 6H2O
Calcualte the delta G for the reaction. If this reaction were used in a fuel cell, what would the standard cell potential be? What would be the cell potential at 100 degrees C?View Full Posting Details