Samuel performed a series of dilution using hydrochloric acid. From the stock bottle of 0.5190 M HCL, 1 mL was pipetted into a 500 mL volumetric flask A and diluted to the calibrated mark using distilled water. Calculate the pH of the solution in volumetric flask C.

a) Samuel performed a series of dilution using hydrochloric acid. From the stock bottle of
0.5190 M HCL, 1 mL was pipetted into a 500 mL volumetric flask A and diluted to the
calibrated mark using distilled water. Calculate the pH of the solution in volumetric flask
C.

b) A buffer solution can be prepared by mixing 0.02 M NH3 with 0.03 M NH4Cl (Ka = 5.70 x10^(-10)). Calculate the pH of this buffer. Determine the new pH if 1 mL of 0.1 M NaOH is
added to 0.1 L of buffer solution.