10. A 21.70 mL volume of 0.0940 M NaOH is required to reach the phenolphthalein endpoint in the titration ofa 3.06 g sample of vinegar. a.Calculate the number of moles of acetic acid in the vinegar sample. b.Calculate the mass of acetic acid in the vinegar sample. The molar mass of acetic acid is 60.05 g/mol. c.Calculate the percent by mass of acetic acid in the vinegar sample. Assume the density of the vinegar is 1.00 g/mL. Express the percent acetic acid in the vinegar to the correct number of significant figures.
10. A 21.70 mL volume of 0.0940 M NaOH is required to reach the phenolphthalein endpoint in the titration ofa 3.06 g sample of vinegar. a.Calculate the number of moles of acetic acid in the vinegar sample. b.Calculate the mass of acetic acid in the vinegar sample. The molar mass of acetic acid is 60.05 g/mol. c.Calculate the percent by mass of acetic acid in the vinegar sample. Assume the density of the vinegar is 1.00 g/mL. Express the percent acetic acid in the vinegar to the correct number of significant figures.
Chapter15: Acid-base Equilibria
Section: Chapter Questions
Problem 96AE: One method for determining the purity of aspirin (C9H8O4) is to hydrolyze it with NaOH solution and...
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10. A 21.70 mL volume of 0.0940 M NaOH is required to reach the phenolphthalein endpoint in the titration ofa 3.06 g sample of vinegar.
a.Calculate the number of moles of acetic acid in the vinegar sample.
b.Calculate the mass of acetic acid in the vinegar sample. The molar mass of acetic acid is 60.05 g/mol.
c.Calculate the percent by mass of acetic acid in the vinegar sample. Assume the density of the vinegar is 1.00 g/mL. Express the percent acetic acid
in the vinegar to the correct number of significant figures.
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