Shown on the graph above, at 25 drops of HCl, buffer one and buffer two’s pH levels stayed the same, but there was a rate of change in pH levels identified within the DI water and the liver solution. Buffer one remained at the neutral pH level of 7 at 25 drops of HCl as well as NaOH. Buffer two resulted in a small decrease of pH around 2 to 3 drops of HCl, but at 25 drops of HCl it remained at a basic pH level of 9. When buffer two was mixed with NaOH it stayed in the basic pH level of 10 throughout the 30 drops of HCl and NaOH. The liver solution showed an acidic pH level of 5 when 25 drops of HCl was added. But when NaOH was added to the liver solution, there the pH level was 7 until 15 drops of NaOH was added it became a basic pH level of 8 even at 25 drops. DI water varied in pH throughout the 30 drops of both HCl and NaOH. When the DI water was mixed with HCl the pH level went from basic to acidic and stayed as a pH of 2 and a pH of