Reduction Potentials?

Question

Use the following standard reduction potentials to answer the questions below.

xo (V)

Au3+ (aq) + 3 e- → Au (s) +1.50

Ag+ (aq) + e- → Ag (s) +0.80

Cu2+ (aq) + 2e- → Cu (s) +0.34

Fe3+ (aq) + 3e- → Fe (s) -0.036V

Al3+ (aq) + 3e- → Al (s) -1.66

Mg2+ (aq) + 2e- → Mg (s) -2.37

Evaluate the following statements and determine if they are True or False.

1) Al (s) can be oxidized by Fe3+ (aq).

2) A positive reduction potential means that the metal is more 3) stable in its reduced state (s) than in its ionic state (aq).

4) The reduction potential of iron indicates that iron rusts (forms Fe2O3) spontaneously.

5) Fe3+ (aq) can oxidize Al (s).

6) Elemental copper (Cu (s)) is more stable than elemental iron (Fe (s)).

Answer 1

1. True

2. True

4. True

5. False

6. True