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What is the pH of an acetic acid solution where the concentration of acetic acid is 4mM and the concentration of sodium acetate is 20mM.

What is the pH of an acetic acid solution where the concentration of acetic acid is 4mM and the concentration of sodium acetate is 20mM. The pKa of acetic acid is 4.76. 4.46 6.00 5.46 11.83 9.52

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