A beaker with 125 mL of an acetic acid buffer with a pH of 5.000
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Chemistry
A beaker with 125 mL of an acetic acid buffer with a pH of 5.000is sitting on a benchtop. The total molarity of acid and conjugatebase in this buffer is 0.100 mol L−1. A student adds 7.00 mLof a0.360 mol L−1 HCl solution to the beaker. How much will the pHchange? The pKa of acetic acid is 4.760. Express your answernumerically to two decimal places. Use a minus (−) sign if the pHhas decreased.
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Acetic acid is written as AcOH and its onjgate base sodiumacetate is written as AcOHendersonHasselbalch equation ispH pKa log using the given pH and
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