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A beaker with 130ml of an acetic acidbuffer with a pH of 5.00 is sitting on a benchtop. The totalmolarity of acid and conjugate base in this buffer is 0.100 M. Astudent adds 8.70ml of a 0.280 M solution to the beaker. How much will the pH change? The pKa of acetic acid is 4.760

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