Question

What is the EMF of represented cell at 298 Ag | Ag⁺ (aq 0.1M) | | H⁺ (aq, 0.1 M), H₂ (g, 0.1 bar) | Pt Given :  E⁰ _Ag/Ag+  = - 0.8 V

(a) 0.77 V 

(b) – 0.829 V 

(c) – 0.77 V 

(d) None of these

Answer 1

Correct option: (c) – 0.77 V

Explanation:

Cell reaction is 2Ag (s) + 2H⁺ (aq) → 2Ag⁺ (aq) + H₂ (g)