Two weak acid solutions and each with the same concentration and having values 3 and…
CHEMISTRY · Single correct · A Level · Chemistry · Electrode potentials · Electrode potentials
Problem
Two weak acid solutions HA1 and HA2 each with the same concentration and having pKa values 3 and 5 are placed in contact with hydrogen electrode (1 atm, 25∘C) and are interconnected through a salt bridge. The emf of the cell is:
(a) 0.21 V
(b) 0.059 V
(c) 0.018 V
(d) 0.021 V