Question: A beaker with 1.40×102 mL of an acetic acidbuffer with a pH of 5.000 is sitting on a benchtop. The totalmolarity of acid and conjugate base in this buffer is 0.100M. A student adds 6.60 mL of a 0.430 MHClsolution to the beaker. How much will the pH change? ThepKa of acetic acid is 4.740.
Please explain your steps. Thank you!