Assignment:
Calculate the pH of the solution when 0.1 M sodium hydroxide (NaOH) is titrated with a 25.0 mL hydrochloric acid (HCl) at the following stages of the titration.
a) 15.0 mL of the sodium hydroxide solution added
b) 25.0 mL of the sodium hydroxide solution added
c) 35.0 mL of the sodium hydroxide solution added
Provide complete and step by step solution for the question and show calculations and use formulas.