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23 Nov 2019

The distinctive odor of vinegar is due to acetic acid, which reactswith sodium hydroxide in the following fashion:
CH3COOH(aq) + NaOH(aq) -> H2O + NaC2H3O2 (aq)


If 3.25 mL of vinegar needs 44.5 mL of 0.135 M NaOH to reach theequivalence point in a titration, how many grams of acetic acid arein a 2.00 qt sample of this vinegar?

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Jarrod Robel
Jarrod RobelLv2
6 Aug 2019

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Related questions

If 3.30 mL of vinegar needs 42.0 mL of 0.120 M \rm NaOH to reach the equivalence point in a titration, how many grams of acetic acid are in a 1.30 qt sample of this vinegar?


Historically, vinegar played an important role in the preservation of food because of the acidity and antimicrobial properties of its main component, acetic acid. There are many types of vinegar found at your local grocery store, including balsamic, rice, red wine, and apple cider vinegars. A titration will help you determine the concentration of acetic acid (CH3COOH) in vinegar. The balanced equation for the titration of acetic acid in vinegar with sodium hydroxide (NaOH) is as follows.

CH3COOH(aq) + NaOH(aq) → H2O(l) + NaCH3COO(aq)

Assume you titrated a sample of vinegar using 0.145 M of sodium hydroxide. The results of this titration are shown in the following table.

Table 2: Titration Data for Vinegar
Volume of Vinegar Titrated (mL) 5.00
Initial Volume of NaOH (mL) 0.35
Final Volume of NaOH (mL) 29.50

(a) Use the data in the above table to determine the vinegar's acetic acid concentration in moles per liter.

0.845 mol/L

(b) Calculate the percent acetic acid in the titrated vinegar. Note that 1% = (1 g acetic acid/100 mL vinegar) × 100%.

_____ %

Please find and show work for part B

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