1. Calculate the pH of a solution prepared by mixing 2.50 L of2.35 M HF with 4.50 L of 1.56 M NaF.
2. A 4.00-g sample of NaOH is added to 2.00 L of the solutionprepared in problem 1. Calculate the pH of the new solution. Assumeany volume change is negligible.
