Assignment:
100 mL of a 0.1 M NaOH solution is being titrated with 0.2 M HCl solution.
a) What is the pH of the solution after 25 mL of the HCl solution has been added?
b) What is the solution after an additional 20 mL of HCl solution has been added?
c) What is the pH of the solution after an additional 25 mL of HCl has been added?
d) How much HCl solution is required to reach the equivalence point in the titration of the above solution?
Provide complete and step by step solution for the question and show calculations and use formulas.