There is a weak acid, Butyric acid (C₃H₇COOH), with a Ka of 2.2 x 10⁻⁵. You will be titrating 25.0 mL of this with the strong base, Ca(OH)₂ which is 0.100 M and it takes 15.0 mL to get it to it’s equivalence point. Please note that the base has 2 basic units.
A. Before titrating, what is the pH of the solution of HBu?