## Question

###### Vinegar usedConcentration NaOHTrialTrial 2TrialMass of empty flask (g)104.32104.85104.75Mass of Ilask wilh vinegar (g)107.42107.74107.65Mass of vinegar (g)Initial NaOH volume (mL)1.000.010.60Final NaOH volume (mL)26.7027.0027.62Volume of NaOH used (mL)Moles of CH;COOH in sampleMass of CHSCOOH in sample Percent by mass of CH;COOH in vinegar sampleAverage

Vinegar used Concentration NaOH Trial Trial 2 Trial Mass of empty flask (g) 104.32 104.85 104.75 Mass of Ilask wilh vinegar (g) 107.42 107.74 107.65 Mass of vinegar (g) Initial NaOH volume (mL) 1.00 0.01 0.60 Final NaOH volume (mL) 26.70 27.00 27.62 Volume of NaOH used (mL) Moles of CH;COOH in sample Mass of CHSCOOH in sample Percent by mass of CH;COOH in vinegar sample Average

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