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8.R: Titration of Vinegar (Report)

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    Experimental Data

    Trial 1 Trial 2 Trial 3
    Initial Buret Reading      
    Final Buret Reading      
    Volume of NaOH used      
    Molarity of NaOH used      
    Volume of vinegar used      

    Data Analysis

    1. Write the balanced equation for the neutralization reaction between aqueous sodium hydroxide and acetic acid.
    The Molarity of Acetic Acid in Vinegar
    Trial 2 Trial 2 Trial 3
    Moles of NaOH used in titration      
    Moles of acetic acid neutralized in vinegar sample      
    Molarity of acetic acid in vinegar      
    Average molarity  

    2. Determine the molarity of acetic acid in vinegar. Show all calculations for one trial below.

    The Mass Percent of Acetic Acid in Vinegar
    Trial 1 Trial 2 Trial 3
    Mass of HC2H3O2 in vinegar sample      
    Mass of vinegar sample (assume density = 1.00 g/mL)      
    Mass Percent of HC2H3O2 in vinegar      
    Average Mass Percent  

    3. Determine the mass percent of acetic acid in vinegar. Show all calculations for one trial below.

    Questions

    1. What was the purpose of the phenolphthalein indicator in this experiment? Be specific.
    2. Suppose you added 40 mL of water to your vinegar sample instead of 20 mL. Would the titration have required more, less or the same amount of NaOH (aq) for a complete reaction? Explain.
    3. Consider a 0.586 M aqueous solution of barium hydroxide, Ba(OH)2 (aq). How many grams of Ba(OH)2 are dissolved in 0.191 dL of 0.586 M Ba(OH)2 (aq)?
    4. What volume (in L) of 0.586 M Ba(OH) 2 (aq) contains 0.466 ounces of Ba(OH)2 dissolved in it?
    5. If 16.0 mL of water are added to 31.5 mL of 0.586 M Ba(OH)2 (aq), what is the new solution molarity?

    This page titled 8.R: Titration of Vinegar (Report) was last modified on Fri, 30 Jan 2026 19:01:15 GMT and is shared under a CC BY-SA license and was authored, remixed, and/or curated by Safiyyah Forbes and Patrick McKay via source content that was edited to the style and standards of the LibreTexts platform.