Question

. 2Y2 V 2Hy lag) t 2u- lag

To draw the cell diagram of SHE and Calomel el, possibly a structure of the procedure occurring.
The only information I have of this problem is shown in the pictures.

Answer 1

1. The half cell reaction for standard hydrogen electrode is given by, 2H⁺ (aq) + 2e^- = H₂ (g)

The SHE is constructed by immersing a platinum electrode in a 1 M solution of H⁺ and hydrogen gas is blown into the solution at 1 atm. pressure.

The cell representation is as follows:

Pt(s)| H2 (g. 1 atm) H+ (aq. 1 M)||

1. The half cell reaction for calomel electrode is given by, Hg₂Cl₂ (s) + 2e^- = 2Hg (l) + 2Cl^- (aq)

The calomel electrode is constructed by a pool of mercury covered with a paste of calomel (mercurus chloride) and a solution of KCl.

The cell representation is as follows:

cr (aq, C1) HgCl2 (5) Hg | Pt