Vinegar Contains Acetic Acid (HC₂H₃O₂), Which Is Responsible for Its

Short Answer

Vinegar contains acetic acid (HC₂H₃O₂), which is responsible for its acidity. In one analysis of a commercial (off the shelf)vinegar brand, a 15.00 mL sample was titrated with 0.450 M NaOH(aq). It required 30.5 mL of this sodium hydroxide titrant to neutralize the acid in the vinegar sample. If 1.000 liter of this vinegar weighs 1.004 kg, what is the percent, by weight, of acetic acid in this vinegar brand? Hint: Write the reaction out and balance it to help with your calculations.