ElectrochemistryHard
Question
A hydrogen electrode placed in a buffer solution of CH3COONa and CH3COOH in the ratios of x : y and y : x has electrode potential values E1 volts and E2 volts, respectively at 25oC. The pKa values of acetic acid is (E1 and E2 are oxidation potentials)
Options
A.
B.
C.
D.
Solution
E1 = 
log [H+]
or pH1 = E1 / 0.059 = pKa + log
pH2 = E2 / 0.059 = pKa + log
or
= 2 pKa or pKa = 
log [H+] or pH1 = E1 / 0.059 = pKa + log
pH2 = E2 / 0.059 = pKa + log
or
= 2 pKa or pKa = Create a free account to view solution
View Solution FreeMore Electrochemistry Questions
A certain current liberated 0.504 g of hydrogen in 2 hours. How many grams of copper can be liberated by the same curren...At 25°C, the solubility product of Pb(OH)2 (s) is [Given: $E_{Pb^{2 +}|Pb}^{o} = - 0.13\text{ V;}E_{OH^{-}|Pb(OH)_{2}|Pb...Choose the correct statement(s)....For the reduction of silver ions with copper metal, the standard cell potential was found to be +0.46 V at 25oC. The val...The cell reaction for the given cell is spontaneous if Pt, Cl2 (P1 atm) |Cl−|Cl2 (P2 atm), Pt...