Question

Using standard reduction potential in aqueous solutions at 25c Table, which substance is most likely to...

Using standard reduction potential in aqueous solutions at 25c Table, which substance is most likely to be oxidised by O2 (g) in acidic aqueous solution?

Select one:

a. Br2 (l)

b. Br- (aq)

c. Ni2+ (aq)

d. Ag (s)

e. Cu2+ (aq)

Cathode (Reduction)
Half-Reaction
Standard Potential
E° (volts)
Li+(aq) + e- -> Li(s)

-3.04

K+(aq) + e- -> K(s)

-2.92

Ca2+(aq) + 2e- -> Ca(s)

-2.76

Na+(aq) + e- -> Na(s)

-2.71

Mg2+(aq) + 2e- -> Mg(s)

-2.38

Al3+(aq) + 3e- -> Al(s)

-1.66

2H2O(l) + 2e- -> H2(g) + 2OH-(aq)

-0.83

Zn2+(aq) + 2e- -> Zn(s)

-0.76

Cr3+(aq) + 3e- -> Cr(s)

-0.74

Fe2+(aq) + 2e- -> Fe(s)

-0.41

Cd2+(aq) + 2e- -> Cd(s)

-0.40

Ni2+(aq) + 2e- -> Ni(s)

-0.23

Sn2+(aq) + 2e- -> Sn(s)

-0.14

Pb2+(aq) + 2e- -> Pb(s)

-0.13

Fe3+(aq) + 3e- -> Fe(s)

-0.04

2H+(aq) + 2e- -> H2(g)

0.00

Sn4+(aq) + 2e- -> Sn2+(aq)

0.15

Cu2+(aq) + e- -> Cu+(aq)

0.16

ClO4-(aq) + H2O(l) + 2e- -> ClO3-(aq) + 2OH-(aq)

0.17

AgCl(s) + e- -> Ag(s) + Cl-(aq)

0.22

Cu2+(aq) + 2e- -> Cu(s)

0.34

ClO3-(aq) + H2O(l) + 2e- -> ClO2-(aq) + 2OH-(aq)

0.35

IO-(aq) + H2O(l) + 2e- -> I-(aq) + 2OH-(aq)

0.49

Cu+(aq) + e- -> Cu(s)

0.52

I2(s) + 2e- -> 2I-(aq)

0.54

ClO2-(aq) + H2O(l) + 2e- -> ClO-(aq) + 2OH-(aq)

0.59

Fe3+(aq) + e- -> Fe2+(aq)

0.77

Hg22+(aq) + 2e- -> 2Hg(l)

0.80

Ag+(aq) + e- -> Ag(s)

0.80

Hg2+(aq) + 2e- -> Hg(l)

0.85

ClO-(aq) + H2O(l) + 2e- -> Cl-(aq) + 2OH-(aq)

0.90

2Hg2+(aq) + 2e- -> Hg22+(aq)

0.90

NO3-(aq) + 4H+(aq) + 3e- -> NO(g) + 2H2O(l)

0.96

Br2(l) + 2e- -> 2Br-(aq)

1.07

O2(g) + 4H+(aq) + 4e- -> 2H2O(l)

1.23

Cr2O72-(aq) + 14H+(aq) + 6e- -> 2Cr3+(aq) + 7H2O(l)

1.33

Cl2(g) + 2e- -> 2Cl-(aq)

1.36

Ce4+(aq) + e- -> Ce3+(aq)

1.44

MnO4-(aq) + 8H+(aq) + 5e- -> Mn2+(aq) + 4H2O(l)

1.49

H2O2(aq) + 2H+(aq) + 2e- -> 2H2O(l)

1.78

Co3+(aq) + e- -> Co2+(aq)

1.82

S2O82-(aq) + 2e- -> 2SO42-(aq)

2.01

O3(g) + 2H+(aq) + 2e- -> O2(g) + H2O(l)

2.07

F2(g) + 2e- -> 2F-(aq)

2.87

Discussion of Standard Electrode Potentials
Index

Tables

Reference
Ebbing
Appendix I
  HyperPhysics***** Chemistry Go Back
0 0
Add a comment Improve this question Transcribed image text
Know the answer?
Add Answer to:
Using standard reduction potential in aqueous solutions at 25c Table, which substance is most likely to...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT