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A 280.0 mL buffer solution is 0.270 M in acetic acid and 0.270 M in sodium...

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Chemistry

A 280.0 mL buffer solution is 0.270 M in acetic acidand 0.270 M in sodium acetate.

What is the initial pH of this solution? Express your answer using two decimalplaces.

What is the pH after addition of 0.0150 mol of HCl? Express your answer using two decimalplaces.

What is the pH after addition of0.0150 mol of NaOH?Expressyour answer using two decimal places.

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