A student performs a titration by filling the titrator with 0.75 M NaOH, and filling a beaker with exactly 5.0 mL of vinegar and 2 drops of phenolphthalein. He adds NaOH to the beaker one drop at a time, swirling and observing after each drop until the color changes to a light pink color. He repeats this experiment two other times. He calculates the average volume of NaOH added is 4.5 mL. The density of vinegar is 1.006 g/mL, and the molar mass of CH3CO2H is 60.05 g/mol. Determine the percent concentration (mass percent) of acetic acid (CH3CO2H) in vinegar. % (omit the units)
A student performs a titration by filling the titrator with 0.75 M NaOH, and filling a beaker with exactly 5.0 mL of vinegar and 2 drops of phenolphthalein. He adds NaOH to the beaker one drop at a time, swirling and observing after each drop until the color changes to a light pink color. He repeats this experiment two other times. He calculates the average volume of NaOH added is 4.5 mL. The density of vinegar is 1.006 g/mL, and the molar mass of CH3CO2H is 60.05 g/mol. Determine the percent concentration (mass percent) of acetic acid (CH3CO2H) in vinegar. % (omit the units)
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
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:A student performs a titration by filling the titrator with 0.75 M NaOH, and filling a beaker with exactly 5.0 mL of vinegar and 2 drops
of phenolphthalein. He adds NaOH to the beaker one drop at a time, swirling and observing after each drop until the color changes
to a light pink color. He repeats this experiment two other times. He calculates the average volume of NaOH added is 4.5 mL. The
density of vinegar is 1.006 g/mL, and the molar mass of CH3CO2H is 60.05 g/mol.
Determine the percent concentration (mass percent) of acetic acid (CH3CO2H) in vinegar.
% (omit the units)
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