Answered: if you titrated your acid sample to a…

Introductory Chemistry: An Active Learning Approach

6th Edition

ISBN:9781305079250

Author:Mark S. Cracolice, Ed Peters

Publisher:Mark S. Cracolice, Ed Peters

Chapter16: Solutions

Section: Chapter Questions

Problem 14E

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Question

Vinegar is a solution of acetic acid (the solute) in water (the solvent) with a solution density of 1010 g/L. If vinegar is 0.80 M acetic acid, what is the % by mass concentration of acetic acid in vinegar? Hint: Write down what you know with full units to figure out how to do this and remember that vinegar is acetic acid diluted in water and % by mass of vinegar = mass of HC₂H₃O₂ x 100 mass of vinegar

How would each of the following errors affect the experimental value of your molarity of acetic? Would your Molarity value be too high, too low, or unaffected? Explain your answer.

if you titrated your acid sample to a bright pink rather than faint pink endpoint?
if your "acetic acid" burette was still wet inside with deionized water when you filled it with acetic acid?
if you recorded the final volume of NaOH as "39.88 mL" instead of "38.88 mL"?

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