Based on the volume of NaOH required to reach the equivalence point, the concentration of the acetic acid in the vinegar at is 0.492 M.
The equivalence point in a titration experiment is the point at which equal amounts of reactants have reacted.
At equivalence point, moles of vinegar = moles of NaOH
Moles of NaOH = concentration × volume
Moles of NaOH = 1.5 × 8.2 = 12.3 mmoles
Moles of vinegar = 12.3 mmoles
Concentration of vinegar = moles/volume
Concentration of vinegar = 12.3/25.0 = 0.492 M
Therefore, the concentration of the acetic acid in the vinegar is 0.492 M.
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