Problem: How much more acetic acid (pKa = 4.76) than acetate should be in solution to maintain a pH of 4.00?a) 2.13 times moreb) 5.75 times morec) 0.47 times mored) 0.00 times moree) 0.17 times more

FREE Expert Solution

In this problem, we are asked to determine much more acetic acid (pKa = 4.76) than acetate should be in solution to maintain a pH of 4.00.


A solution that contains a weak acid (acetic acid) and its conjugate base (acetate) is a buffer solution. The pH of a buffer solution can be determined using the Henderson-Hasselbalch equation.

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Problem Details

How much more acetic acid (pKa = 4.76) than acetate should be in solution to maintain a pH of 4.00?

a) 2.13 times more

b) 5.75 times more

c) 0.47 times more

d) 0.00 times more

e) 0.17 times more

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