A beaker with 185 mL of an acetic acid buffer with a pH of 5.000 is sitting on a benchtop. The total molarity of acid and

Question

A beaker with 185 mL of an acetic acid buffer with a pH of 5.000 is sitting on a benchtop. The
total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 7.10 mL
of a 0.480 M HCl solution to the beaker. How much will the pH change? The pKa of acetic
acid is 4.740.
Express your answer numerically to two decimal places. Use a minus ( - ) sign if the
pH has decreased.

Kunduz · Accepted Answer

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