1. Explain what is the pH of a 0.038 M NaOH solution?
2. Benzoic acid has a Ka of 0.000063. Explain what is the pH of a 0.125 M aqueous solution of benzoic acid?
3. Explain hydrofluoric acid (HF) is a weak acid. Explain what is the conjugate base of HF that is present in an aqueous solution of HF