Acid-base titration experiment pdf

Troubleshooting your titration

The solution color changed but then reverted to original color.

That means you didn’t reach the end point.

It’s normal for a drop of titrant to change the color, especially as you approach the end point, because the concentration is not equal throughout the solution.

Titration experiment lab report

This is why swirling and slow drops are important. Swirling helps distribute the titrant evenly, and slow drops make it easier to pause and evaluate. The end point should remain visible for 20–30 seconds.

I missed the end point

It’s technically possible to add more analyte and indicator to a flask to reverse the end point if you carefully track the added volumes.

But the easier and faster solution is to simply start over.

My end point occurred immediately

Your titration reaction may have been too rapid due to an excessive concentration of titrant, improper mixing, or the presence of impurities.

Try reducing the concentration of the titrant, mix completely, and thoroughly rinse your glassware in the next attempt.

My end point didn’t happ