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The ChemCollective >> CHE126 - Lab for CHE120 >> Virtual Lab experiment for Experiment 9
In this lab, you will determine the concentration of acetic acid in vinegar using a 0.110 M NaOH standard solution and an acid-base indicator, phenolphthalein. First dilute the vinegar by one tenth of the original concentration. Add the indicator and then add NaOH slowly to the diluted vinegar solution. Once all the acetic acid in vinegar has reacted with the base, the first excess drop of NaOH will cause the indicator in the vinegar solution to turn pink. Calculate the concentration of the acetic acid in your vinegar sample in two decimal places.
View the accompanying procedure for this experiment.
| Last Updated: Tuesday, May 10th, 2007 @ 03:37:54 pm |