Problem: What is the pH at the half-equivalence point in the titration of a weak base with a strong acid? The pKb of the weak base is 8.75.

FREE Expert Solution

We are asked to calculate the pH at the half equivalence point


We can use the Henderson Hasslebalch equation to calculate the pOH of a titrated base: 

pOH = pKb + log(BH+B)


We then can use the equation  below to calculate the pH:

pH= 14- pOH


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Problem Details

What is the pH at the half-equivalence point in the titration of a weak base with a strong acid? The pKb of the weak base is 8.75.

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Equivalence Point concept. If you need more Equivalence Point practice, you can also practice Equivalence Point practice problems.