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A beaker with 1.20102 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...

A beaker with 1.20×102 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 . A student adds 5.70 of a 0.340 solution to the beaker. How much will the pH change? The of acetic acid is 4.760.
help please i oly have one try left it is not -4.6

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