Answer to Question #204079 in Organic Chemistry for Merewalesi Sasili

Question

The standard potential of the following cell:

Cd (s) / Cd (NO3)2 (aq) // KBr (aq) / AgBr (s) / Ag (s)

Was found to be 0.4731 V at 25°C. The temperature coefficient of the emf of the cell is 1.74 x 10-4 VK-1. Write the cell reaction and calculate ΔG°, ΔS° and ΔH°.    [3 marks]

Answer 1

$[NO^-_3]=0.02mol/kg$

$[Br^-] =0.1mol/kg$

$E_{cell} =-0.487V$