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A beaker with 125 mL of an acetic acid buffer with a pH of 5.000 is...

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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 M. A student adds 7.00 mL ofa 0.360 M HCl solution to the beaker. How much will the pHchange? The pKa of acetic acid is 4.740.

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Answer There are given volume of buffer 125 mL pH 500 CH3COOH CH3COO 0100 M Volume of HCl 70 mL HCl 0360 M First we need to calculate the CH3COOH and CH3COO We know Henderson Hasselbalch equation pH pKa log CH3COO CH3COOH so 500 474    See Answer
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