<u>Answer :</u>
(a) The value of of the lactate ion is,
(b) The value of of the conjugate base of pyruvic acid is,
Explanation :
<u>Solution for (a) :</u>
As we are given :
As we know that,
where,
= dissociation constant of an acid =
= dissociation constant of a base = ?
= dissociation constant of water =
Now put all the given values in the above expression, we get the dissociation constant of a base (lactate ion).
Therefore, the value of of the lactate ion is,
<u>Solution for (b) :</u>
As we are given :
As we know that,
where,
= dissociation constant of an acid =
= dissociation constant of a base = ?
= dissociation constant of water =
Now put all the given values in the above expression, we get the dissociation constant of a base (conjugate base of pyruvic acid).
Therefore, the value of of the conjugate base of pyruvic acid is,