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A beaker with 130 mL of an acetic acid buffer with a pH of 5.00 is...

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Chemistry

A beaker with 130 mL of an acetic acid buffer with a pH of 5.00is sitting on a benchtop. The total molarity of acid and conjugatebase in this buffer is 0.100 M. A student adds 6.20 mL of a 0.490 MHCl solution to the beaker. How much will the pH change? The pKa ofacetic acid is 4.760.

Express answer numerically to two decimal places. Use a minus(-) sign if the pH has decreased.

Answer & Explanation Solved by verified expert
4.1 Ratings (493 Votes)
According to HendersonHesselbalch equation 500 476 log Acetate acetic acid 500476 log Acetate acetic acid 024 log Acetate acetic acid 10024 Acetate    See Answer
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