Question

equivalence point

Calculate the pH at the halfway point and at the equivalence point for each of the following titrations.
a. 100.0 ml of 0.10 M HC7H5O2 (Ka = 6-4×10^-5) titrated by 0.10 M NaOH
b. 100.0 ml of 0.10 M C2H5NH2 (Kb= 5.6×10^-4) titrated by 0.20 M HNO3
c. 100.0 ml of 0.50 M HCL titrated by 0.25 M NaOH

Please solve and explain Thanks!!

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