The next 11 questions are related to the titration of 40.00 mL of a 0.0900 M acetic acid solution with 0.0700 M KOH. Assume that the temperature is 25 oC. What is the initial pH of the analyte solution?

2.9 is the initial pH of the analyte solution.

Explanation:

The dissociation constant of acetic acid as per theoretical value =  

The initial concentration of acetic acid = c = 0.0900 M

initially

c       0    0

At equilibrium

(c-x)      x  x

The expression of dissociation constant :

Solving for x:

x = 0.001264 M

The pH of the solution :

2.9 is the initial pH of the analyte solution.