Question

Value of dissociation constant of acetic acid is 10^-6, where as dissociation constant of formic acid is 10^-5 Which
of the following will be the value of pka (acetic acid) - pka (formic acid)
(1) 10
(2) +1
(3) 10^-1
(4)-1​

Answer 1

Explanation:

At a certain temperature, dissociation constant of formic acid and acetic acid are 1.8×10−4 and 1.8×10−5 respectively. At what concentration of acetic solution, the H3O+ ion concentration is same as that in 0.001 M fromic acid solution.