Question

What are the concentration cell? the emf cell of the Ag/AgNO3(0.0083M)//AgNO3(xm)/Ag was found to be 0.074V at 298K calculate the value of x and write the cell reaction?

Answer 1

Answer:

The cells in which EMF arises due to transfer of matter from one half cells to the other because of a difference in the concentration of species involved are known as concentration cells.

Explanation:

E = 0.059/n log C2/C1

0.074= 0.059/2 log x/0.0083

0.074 = 0.0295 log x/0.0083

2.508 = log x/0.0083

322.10 = x/0.0083

x= 2.67 M