Question

MULTIPLE CHOICE
Ag*(aq) + e → Ag(s) E° = + 0.80 V
Fe2+ (aq) + + 2e → Fe(s) E° = -0.44 V
What is emf of
Fe(s) + 2Ag+ (aq) → Fe2+ (aq) + 2Ag(s)
A
1.16 V
B
1.24 V
с
2.04 V
D
-1.16 V

Answer 1

Explanation:

MULTIPLE CHOICE

Ag*(aq) + e → Ag(s) E° = + 0.80 V

Fe2+ (aq) + + 2e → Fe(s) E° = -0.44 V

What is emf of

Fe(s) + 2Ag+ (aq) → Fe2+ (aq) + 2Ag(s)

A

1.16 V

B

1.24 V

с

2.04 V

D

-1.16 V

YOUR ANSWER IS A)1.16

2AG=2×0.8=1.6

Fe= -0.44

NET ENERGY=1.6-0.44=1.16