Question

A Gran plot for a potentiometric titration resulted in a slope of 5.56 x 105. Measurements were made using SCE as the reference electrode and the analyte Eo was determined to be 0.354 V. How many electrons are involved in the analyte oxidation/reduction?

Answer 1

From the given Gran plot for a potentiometric titration,

We have slope (s) = 5.56 x 10⁵

E_o = 0.354 V

So, the total number of 1 mole of H⁺ will be in 1 L solution. Then the total number of electrons are involved in the analyte oxidation/reduction = 1 mole.