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You have 500.0 mL of a buffer solution containing 0.20 M acetic acid (CH3COOH) and 0.30...

You have 500.0 mL of a buffer solution containing 0.20 M acetic acid (CH3COOH) and 0.30 M sodium acetate (CH3COONa). What will the pH of this solution be after the addition of 20.0 mL of 1.00 M HCl solution? Ka for acetic acid = 1.8 × 10–5

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