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The pKa of acetic acid is 4.74. Calculate the PH of the following buffer solutions made by mixing acetic acid and sodium acetate solutions

The pKa of acetic acid is 4.74. Calculate the PH of the following buffer solutions made by mixing acetic acid and sodium acetate solutions (a) 0.2M Acetitic acid mixed with 0.2M sodium acetate (b) 0.1M sodium acetate mixed with 0.3M acetic acid (c) 0.1M acetic acid mixed 0.3M sodium acetate Calculate pH of a buffer solution

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