A beaker with 1.10×102 mL of an acetic acid buffer with a pH of5.000 is sitting on a benchtop. The total molarity of acid andconjugate base in this buffer is 0.100 M. A student adds 8.00 mL ofa 0.370 M HCl solution to the beaker. How much will the pH change?The pKa of acetic acid is 4.740. Express your answer numerically totwo decimal places. Use a minus ( − ) sign if the pH hasdecreased.
