Problem: A 25.0-mL sample of 0.125 M pyridine is titrated with 0.100 M HCl.Calculate the pH at equivalence point.

FREE Expert Solution

We are being asked to calculate the pH at the equivalence point in the titration pyridine (C5H5N) with HCl.


We will calculate the pH of the solution at the equivalence point using the following steps:

Step 1. Write the chemical equation for the reaction between C5H5N and HCl.
Step 2. Calculate the initial amounts of C5H5N and HCl in moles before the reaction happens.
Step 3. Construct an ICF Chart.
Step 4. Calculate the new concentration of the species left in the solution.
Step 5. Calculate pH.


Step 1. Write the chemical equation for the reaction between C5H5N and HCl.

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Problem Details

A 25.0-mL sample of 0.125 M pyridine is titrated with 0.100 M HCl.

Calculate the pH at equivalence point.

Frequently Asked Questions

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 Weak Base Strong Acid Titrations concept. You can view video lessons to learn Weak Base Strong Acid Titrations. Or if you need more Weak Base Strong Acid Titrations practice, you can also practice Weak Base Strong Acid Titrations practice problems.