If standard emf of the cell, $\mathrm{Cu}|\mathrm{Cu}^{2+}(\mathrm{aq})\|[\mathrm{Cu(NH_3)_4}]^{2+}, \mathrm{aq.NH_3}|\mathrm{Cu}$ is 0.35, then stability constant of the formation cupric amine complex is
(a)$1.0 \times 10^{27}$
(b)$8.4 \times 10^{5}$
(c)$7.0 \times 10^{11}$
(d)$4.3 \times 10^{13}$
Answer
Answer: C ✓ checked by 4AB · confidence high
The source book printed no answer; this one was worked out and checked — see the explanation.