Buffer capacity is a measure of a buffer solution's resistance to changes in pH as strong acid or base is added. Suppose that you have 115 115 mL of a buffer that is 0.420 0.420 M in both hydrofluoric acid ( HF ) (HF) and its conjugate base ( F − ) (F−) . Calculate the maximum volume of 0.120 0.120 M HCl HCl that can be added to the buffer before its buffering capacity is lost.

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.