Calculate Average molarity (M) of Acetic acid in vinegar, using the following data.Calculate the mass percent of acetic acid in vinegar, using your average Acetic acid concentration (M) from above result.Table 2. Data for titration of 20.00 mL of vinegar with approximately 1.2 M NaOH. Note you must use the exact concentration of the standard NaOH solution to calculate the moles of NaOH. QuantityTrial 1Trial 2Trial 3MNAOH (exact concentration)M1.1891.1891.189Vinitial buret reading = Viml1.1629.3115.03%3DVfinal buret reading = Vfml15.0238.0628.99Vep = VNAOH added = Vf - VimlVep = VNAOH in LLmoles NaOH = MNAOH x VNAOHmol%3Dmoles AA = moles NaOHmolVsample = VacidLActual molarity of AAMAverage molarity of AAfor Discarding Outlying Results: If the deviation of the outlying value is greater than four times theaverage deviation, the sample potentially can be discarded.Macetic acid molar mass60.05 g/molvinegar density1.05 g/mL

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Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

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Calculate Average molarity (M) of Acetic acid in vinegar, using the following data.
Calculate the mass percent of acetic acid in vinegar, using your average Acetic acid concentration (M) from above result.

Table 2. Data for titration of 20.00 mL of vinegar with approximately 1.2 M NaOH. Note you must use the exact concentration of the standard NaOH solution to calculate the moles of NaOH.

Quantity
Trial 1
Trial 2
Trial 3
MNAOH (exact concentration)
M
1.189
1.189
1.189
Vinitial buret reading = Vi
ml
1.16
29.31
15.03
%3D
Vfinal buret reading = Vf
ml
15.02
38.06
28.99
Vep = VNAOH added = Vf - Vi
ml
Vep = VNAOH in L
L
moles NaOH = MNAOH x VNAOH
mol
%3D
moles AA = moles NaOH
mol
Vsample = Vacid
L
Actual molarity of AA
M
Average molarity of AA
for Discarding Outlying Results: If the deviation of the outlying value is greater than four times the
average deviation, the sample potentially can be discarded.
M
acetic acid molar mass
60.05 g/mol
vinegar density
1.05 g/mL

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