You need to produce a buffer solution that has a ph of 5.39. you already have a solution that contains 10. mmol (millimoles) of acetic acid. how many millimoles of acetate (the conjugate base of acetic acid) will you need to add to this solution?

Milli moles of acetate = 43.65 mmol

Explanation:

The pH of a buffer solution is calculated using Henderson Hassalbalch's equation, which is:

Where

[Salt] = concentration of salt (sodium acetate, the conjugate base)

[acid] = concentration of acid (acetic acid) = 10 mmol

pH = 5.39

For acetic acid

pKa =4.75

Putting values

Taking antilog

moles of acetate = 43.65 mmol

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