Explain acetic acid in a commercial vinegar sample

Reference no: EM13245002

A student wanted to determine the molar concentration of acetic acid in a commercial vinegar sample. He used a volumetric pipet to deliver 3.00 mL of vinegar to an Erlenmeyer flask, added about 30 mL of water and 3 drops of phenolphthalein indicator. He performed the titration and obtained the following data:

Flask ; Initial Volume (0.0997 M NaOH) mL ; Final Volume (0.0997 M NaOH) mL
1 ; 50.00 ; 25.10
2 ; 25.10 ; 0.35
3 ; 50.00 ; 25.00

Determine the molarity of acetic acid in the vinegar sample.

Reference no: EM13245002

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